| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.transition; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.TimeInterpolator; |
| import android.content.Context; |
| import android.content.res.TypedArray; |
| import android.graphics.Path; |
| import android.graphics.Rect; |
| import android.util.ArrayMap; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.util.LongSparseArray; |
| import android.util.SparseArray; |
| import android.util.SparseLongArray; |
| import android.view.InflateException; |
| import android.view.SurfaceView; |
| import android.view.TextureView; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.ViewOverlay; |
| import android.view.WindowId; |
| import android.view.animation.AnimationUtils; |
| import android.widget.ListView; |
| import android.widget.Spinner; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.StringTokenizer; |
| |
| import com.android.internal.R; |
| |
| /** |
| * A Transition holds information about animations that will be run on its |
| * targets during a scene change. Subclasses of this abstract class may |
| * choreograph several child transitions ({@link TransitionSet} or they may |
| * perform custom animations themselves. Any Transition has two main jobs: |
| * (1) capture property values, and (2) play animations based on changes to |
| * captured property values. A custom transition knows what property values |
| * on View objects are of interest to it, and also knows how to animate |
| * changes to those values. For example, the {@link Fade} transition tracks |
| * changes to visibility-related properties and is able to construct and run |
| * animations that fade items in or out based on changes to those properties. |
| * |
| * <p>Note: Transitions may not work correctly with either {@link SurfaceView} |
| * or {@link TextureView}, due to the way that these views are displayed |
| * on the screen. For SurfaceView, the problem is that the view is updated from |
| * a non-UI thread, so changes to the view due to transitions (such as moving |
| * and resizing the view) may be out of sync with the display inside those bounds. |
| * TextureView is more compatible with transitions in general, but some |
| * specific transitions (such as {@link Fade}) may not be compatible |
| * with TextureView because they rely on {@link ViewOverlay} functionality, |
| * which does not currently work with TextureView.</p> |
| * |
| * <p>Transitions can be declared in XML resource files inside the <code>res/transition</code> |
| * directory. Transition resources consist of a tag name for one of the Transition |
| * subclasses along with attributes to define some of the attributes of that transition. |
| * For example, here is a minimal resource file that declares a {@link ChangeBounds} transition: |
| * |
| * {@sample development/samples/ApiDemos/res/transition/changebounds.xml ChangeBounds} |
| * |
| * <p>This TransitionSet contains {@link android.transition.Explode} for visibility, |
| * {@link android.transition.ChangeBounds}, {@link android.transition.ChangeTransform}, |
| * and {@link android.transition.ChangeClipBounds} and |
| * {@link android.transition.ChangeImageTransform}:</p> |
| * |
| * {@sample development/samples/ApiDemos/res/transition/explode_move_together.xml MultipleTransform} |
| * |
| * <p>Custom transition classes may be instantiated with a <code>transition</code> tag:</p> |
| * <pre><transition class="my.app.transition.CustomTransition"/></pre> |
| * <p>Custom transition classes loaded from XML should have a public constructor taking |
| * a {@link android.content.Context} and {@link android.util.AttributeSet}.</p> |
| * |
| * <p>Note that attributes for the transition are not required, just as they are |
| * optional when declared in code; Transitions created from XML resources will use |
| * the same defaults as their code-created equivalents. Here is a slightly more |
| * elaborate example which declares a {@link TransitionSet} transition with |
| * {@link ChangeBounds} and {@link Fade} child transitions:</p> |
| * |
| * {@sample |
| * development/samples/ApiDemos/res/transition/changebounds_fadeout_sequential.xml TransitionSet} |
| * |
| * <p>In this example, the transitionOrdering attribute is used on the TransitionSet |
| * object to change from the default {@link TransitionSet#ORDERING_TOGETHER} behavior |
| * to be {@link TransitionSet#ORDERING_SEQUENTIAL} instead. Also, the {@link Fade} |
| * transition uses a fadingMode of {@link Fade#OUT} instead of the default |
| * out-in behavior. Finally, note the use of the <code>targets</code> sub-tag, which |
| * takes a set of {@link android.R.styleable#TransitionTarget target} tags, each |
| * of which lists a specific <code>targetId</code>, <code>targetClass</code>, |
| * <code>targetName</code>, <code>excludeId</code>, <code>excludeClass</code>, or |
| * <code>excludeName</code>, which this transition acts upon. |
| * Use of targets is optional, but can be used to either limit the time spent checking |
| * attributes on unchanging views, or limiting the types of animations run on specific views. |
| * In this case, we know that only the <code>grayscaleContainer</code> will be |
| * disappearing, so we choose to limit the {@link Fade} transition to only that view.</p> |
| * |
| * Further information on XML resource descriptions for transitions can be found for |
| * {@link android.R.styleable#Transition}, {@link android.R.styleable#TransitionSet}, |
| * {@link android.R.styleable#TransitionTarget}, {@link android.R.styleable#Fade}, |
| * {@link android.R.styleable#Slide}, and {@link android.R.styleable#ChangeTransform}. |
| * |
| */ |
| public abstract class Transition implements Cloneable { |
| |
| private static final String LOG_TAG = "Transition"; |
| static final boolean DBG = false; |
| |
| /** |
| * With {@link #setMatchOrder(int...)}, chooses to match by View instance. |
| */ |
| public static final int MATCH_INSTANCE = 0x1; |
| private static final int MATCH_FIRST = MATCH_INSTANCE; |
| |
| /** |
| * With {@link #setMatchOrder(int...)}, chooses to match by |
| * {@link android.view.View#getTransitionName()}. Null names will not be matched. |
| */ |
| public static final int MATCH_NAME = 0x2; |
| |
| /** |
| * With {@link #setMatchOrder(int...)}, chooses to match by |
| * {@link android.view.View#getId()}. Negative IDs will not be matched. |
| */ |
| public static final int MATCH_ID = 0x3; |
| |
| /** |
| * With {@link #setMatchOrder(int...)}, chooses to match by the {@link android.widget.Adapter} |
| * item id. When {@link android.widget.Adapter#hasStableIds()} returns false, no match |
| * will be made for items. |
| */ |
| public static final int MATCH_ITEM_ID = 0x4; |
| |
| private static final int MATCH_LAST = MATCH_ITEM_ID; |
| |
| private static final String MATCH_INSTANCE_STR = "instance"; |
| private static final String MATCH_NAME_STR = "name"; |
| /** To be removed before L release */ |
| private static final String MATCH_VIEW_NAME_STR = "viewName"; |
| private static final String MATCH_ID_STR = "id"; |
| private static final String MATCH_ITEM_ID_STR = "itemId"; |
| |
| private static final int[] DEFAULT_MATCH_ORDER = { |
| MATCH_NAME, |
| MATCH_INSTANCE, |
| MATCH_ID, |
| MATCH_ITEM_ID, |
| }; |
| |
| private static final PathMotion STRAIGHT_PATH_MOTION = new PathMotion() { |
| @Override |
| public Path getPath(float startX, float startY, float endX, float endY) { |
| Path path = new Path(); |
| path.moveTo(startX, startY); |
| path.lineTo(endX, endY); |
| return path; |
| } |
| }; |
| |
| private String mName = getClass().getName(); |
| |
| long mStartDelay = -1; |
| long mDuration = -1; |
| TimeInterpolator mInterpolator = null; |
| ArrayList<Integer> mTargetIds = new ArrayList<Integer>(); |
| ArrayList<View> mTargets = new ArrayList<View>(); |
| ArrayList<String> mTargetNames = null; |
| ArrayList<Class> mTargetTypes = null; |
| ArrayList<Integer> mTargetIdExcludes = null; |
| ArrayList<View> mTargetExcludes = null; |
| ArrayList<Class> mTargetTypeExcludes = null; |
| ArrayList<String> mTargetNameExcludes = null; |
| ArrayList<Integer> mTargetIdChildExcludes = null; |
| ArrayList<View> mTargetChildExcludes = null; |
| ArrayList<Class> mTargetTypeChildExcludes = null; |
| private TransitionValuesMaps mStartValues = new TransitionValuesMaps(); |
| private TransitionValuesMaps mEndValues = new TransitionValuesMaps(); |
| TransitionSet mParent = null; |
| private int[] mMatchOrder = DEFAULT_MATCH_ORDER; |
| ArrayList<TransitionValues> mStartValuesList; // only valid after playTransition starts |
| ArrayList<TransitionValues> mEndValuesList; // only valid after playTransitions starts |
| |
| // Per-animator information used for later canceling when future transitions overlap |
| private static ThreadLocal<ArrayMap<Animator, AnimationInfo>> sRunningAnimators = |
| new ThreadLocal<ArrayMap<Animator, AnimationInfo>>(); |
| |
| // Scene Root is set at createAnimator() time in the cloned Transition |
| ViewGroup mSceneRoot = null; |
| |
| // Whether removing views from their parent is possible. This is only for views |
| // in the start scene, which are no longer in the view hierarchy. This property |
| // is determined by whether the previous Scene was created from a layout |
| // resource, and thus the views from the exited scene are going away anyway |
| // and can be removed as necessary to achieve a particular effect, such as |
| // removing them from parents to add them to overlays. |
| boolean mCanRemoveViews = false; |
| |
| // Track all animators in use in case the transition gets canceled and needs to |
| // cancel running animators |
| private ArrayList<Animator> mCurrentAnimators = new ArrayList<Animator>(); |
| |
| // Number of per-target instances of this Transition currently running. This count is |
| // determined by calls to start() and end() |
| int mNumInstances = 0; |
| |
| // Whether this transition is currently paused, due to a call to pause() |
| boolean mPaused = false; |
| |
| // Whether this transition has ended. Used to avoid pause/resume on transitions |
| // that have completed |
| private boolean mEnded = false; |
| |
| // The set of listeners to be sent transition lifecycle events. |
| ArrayList<TransitionListener> mListeners = null; |
| |
| // The set of animators collected from calls to createAnimator(), |
| // to be run in runAnimators() |
| ArrayList<Animator> mAnimators = new ArrayList<Animator>(); |
| |
| // The function for calculating the Animation start delay. |
| TransitionPropagation mPropagation; |
| |
| // The rectangular region for Transitions like Explode and TransitionPropagations |
| // like CircularPropagation |
| EpicenterCallback mEpicenterCallback; |
| |
| // For Fragment shared element transitions, linking views explicitly by mismatching |
| // transitionNames. |
| ArrayMap<String, String> mNameOverrides; |
| |
| // The function used to interpolate along two-dimensional points. Typically used |
| // for adding curves to x/y View motion. |
| private PathMotion mPathMotion = STRAIGHT_PATH_MOTION; |
| |
| /** |
| * Constructs a Transition object with no target objects. A transition with |
| * no targets defaults to running on all target objects in the scene hierarchy |
| * (if the transition is not contained in a TransitionSet), or all target |
| * objects passed down from its parent (if it is in a TransitionSet). |
| */ |
| public Transition() {} |
| |
| /** |
| * Perform inflation from XML and apply a class-specific base style from a |
| * theme attribute or style resource. This constructor of Transition allows |
| * subclasses to use their own base style when they are inflating. |
| * |
| * @param context The Context the transition is running in, through which it can |
| * access the current theme, resources, etc. |
| * @param attrs The attributes of the XML tag that is inflating the transition. |
| */ |
| public Transition(Context context, AttributeSet attrs) { |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.Transition); |
| long duration = a.getInt(R.styleable.Transition_duration, -1); |
| if (duration >= 0) { |
| setDuration(duration); |
| } |
| long startDelay = a.getInt(R.styleable.Transition_startDelay, -1); |
| if (startDelay > 0) { |
| setStartDelay(startDelay); |
| } |
| final int resID = a.getResourceId(com.android.internal.R.styleable.Animator_interpolator, 0); |
| if (resID > 0) { |
| setInterpolator(AnimationUtils.loadInterpolator(context, resID)); |
| } |
| String matchOrder = a.getString(R.styleable.Transition_matchOrder); |
| if (matchOrder != null) { |
| setMatchOrder(parseMatchOrder(matchOrder)); |
| } |
| a.recycle(); |
| } |
| |
| private static int[] parseMatchOrder(String matchOrderString) { |
| StringTokenizer st = new StringTokenizer(matchOrderString, ","); |
| int matches[] = new int[st.countTokens()]; |
| int index = 0; |
| while (st.hasMoreTokens()) { |
| String token = st.nextToken().trim(); |
| if (MATCH_ID_STR.equalsIgnoreCase(token)) { |
| matches[index] = Transition.MATCH_ID; |
| } else if (MATCH_INSTANCE_STR.equalsIgnoreCase(token)) { |
| matches[index] = Transition.MATCH_INSTANCE; |
| } else if (MATCH_NAME_STR.equalsIgnoreCase(token)) { |
| matches[index] = Transition.MATCH_NAME; |
| } else if (MATCH_VIEW_NAME_STR.equalsIgnoreCase(token)) { |
| matches[index] = Transition.MATCH_NAME; |
| } else if (MATCH_ITEM_ID_STR.equalsIgnoreCase(token)) { |
| matches[index] = Transition.MATCH_ITEM_ID; |
| } else if (token.isEmpty()) { |
| int[] smallerMatches = new int[matches.length - 1]; |
| System.arraycopy(matches, 0, smallerMatches, 0, index); |
| matches = smallerMatches; |
| index--; |
| } else { |
| throw new InflateException("Unknown match type in matchOrder: '" + token + "'"); |
| } |
| index++; |
| } |
| return matches; |
| } |
| |
| /** |
| * Sets the duration of this transition. By default, there is no duration |
| * (indicated by a negative number), which means that the Animator created by |
| * the transition will have its own specified duration. If the duration of a |
| * Transition is set, that duration will override the Animator duration. |
| * |
| * @param duration The length of the animation, in milliseconds. |
| * @return This transition object. |
| * @attr ref android.R.styleable#Transition_duration |
| */ |
| public Transition setDuration(long duration) { |
| mDuration = duration; |
| return this; |
| } |
| |
| /** |
| * Returns the duration set on this transition. If no duration has been set, |
| * the returned value will be negative, indicating that resulting animators will |
| * retain their own durations. |
| * |
| * @return The duration set on this transition, in milliseconds, if one has been |
| * set, otherwise returns a negative number. |
| */ |
| public long getDuration() { |
| return mDuration; |
| } |
| |
| /** |
| * Sets the startDelay of this transition. By default, there is no delay |
| * (indicated by a negative number), which means that the Animator created by |
| * the transition will have its own specified startDelay. If the delay of a |
| * Transition is set, that delay will override the Animator delay. |
| * |
| * @param startDelay The length of the delay, in milliseconds. |
| * @return This transition object. |
| * @attr ref android.R.styleable#Transition_startDelay |
| */ |
| public Transition setStartDelay(long startDelay) { |
| mStartDelay = startDelay; |
| return this; |
| } |
| |
| /** |
| * Returns the startDelay set on this transition. If no startDelay has been set, |
| * the returned value will be negative, indicating that resulting animators will |
| * retain their own startDelays. |
| * |
| * @return The startDelay set on this transition, in milliseconds, if one has |
| * been set, otherwise returns a negative number. |
| */ |
| public long getStartDelay() { |
| return mStartDelay; |
| } |
| |
| /** |
| * Sets the interpolator of this transition. By default, the interpolator |
| * is null, which means that the Animator created by the transition |
| * will have its own specified interpolator. If the interpolator of a |
| * Transition is set, that interpolator will override the Animator interpolator. |
| * |
| * @param interpolator The time interpolator used by the transition |
| * @return This transition object. |
| * @attr ref android.R.styleable#Transition_interpolator |
| */ |
| public Transition setInterpolator(TimeInterpolator interpolator) { |
| mInterpolator = interpolator; |
| return this; |
| } |
| |
| /** |
| * Returns the interpolator set on this transition. If no interpolator has been set, |
| * the returned value will be null, indicating that resulting animators will |
| * retain their own interpolators. |
| * |
| * @return The interpolator set on this transition, if one has been set, otherwise |
| * returns null. |
| */ |
| public TimeInterpolator getInterpolator() { |
| return mInterpolator; |
| } |
| |
| /** |
| * Returns the set of property names used stored in the {@link TransitionValues} |
| * object passed into {@link #captureStartValues(TransitionValues)} that |
| * this transition cares about for the purposes of canceling overlapping animations. |
| * When any transition is started on a given scene root, all transitions |
| * currently running on that same scene root are checked to see whether the |
| * properties on which they based their animations agree with the end values of |
| * the same properties in the new transition. If the end values are not equal, |
| * then the old animation is canceled since the new transition will start a new |
| * animation to these new values. If the values are equal, the old animation is |
| * allowed to continue and no new animation is started for that transition. |
| * |
| * <p>A transition does not need to override this method. However, not doing so |
| * will mean that the cancellation logic outlined in the previous paragraph |
| * will be skipped for that transition, possibly leading to artifacts as |
| * old transitions and new transitions on the same targets run in parallel, |
| * animating views toward potentially different end values.</p> |
| * |
| * @return An array of property names as described in the class documentation for |
| * {@link TransitionValues}. The default implementation returns <code>null</code>. |
| */ |
| public String[] getTransitionProperties() { |
| return null; |
| } |
| |
| /** |
| * This method creates an animation that will be run for this transition |
| * given the information in the startValues and endValues structures captured |
| * earlier for the start and end scenes. Subclasses of Transition should override |
| * this method. The method should only be called by the transition system; it is |
| * not intended to be called from external classes. |
| * |
| * <p>This method is called by the transition's parent (all the way up to the |
| * topmost Transition in the hierarchy) with the sceneRoot and start/end |
| * values that the transition may need to set up initial target values |
| * and construct an appropriate animation. For example, if an overall |
| * Transition is a {@link TransitionSet} consisting of several |
| * child transitions in sequence, then some of the child transitions may |
| * want to set initial values on target views prior to the overall |
| * Transition commencing, to put them in an appropriate state for the |
| * delay between that start and the child Transition start time. For |
| * example, a transition that fades an item in may wish to set the starting |
| * alpha value to 0, to avoid it blinking in prior to the transition |
| * actually starting the animation. This is necessary because the scene |
| * change that triggers the Transition will automatically set the end-scene |
| * on all target views, so a Transition that wants to animate from a |
| * different value should set that value prior to returning from this method.</p> |
| * |
| * <p>Additionally, a Transition can perform logic to determine whether |
| * the transition needs to run on the given target and start/end values. |
| * For example, a transition that resizes objects on the screen may wish |
| * to avoid running for views which are not present in either the start |
| * or end scenes.</p> |
| * |
| * <p>If there is an animator created and returned from this method, the |
| * transition mechanism will apply any applicable duration, startDelay, |
| * and interpolator to that animation and start it. A return value of |
| * <code>null</code> indicates that no animation should run. The default |
| * implementation returns null.</p> |
| * |
| * <p>The method is called for every applicable target object, which is |
| * stored in the {@link TransitionValues#view} field.</p> |
| * |
| * |
| * @param sceneRoot The root of the transition hierarchy. |
| * @param startValues The values for a specific target in the start scene. |
| * @param endValues The values for the target in the end scene. |
| * @return A Animator to be started at the appropriate time in the |
| * overall transition for this scene change. A null value means no animation |
| * should be run. |
| */ |
| public Animator createAnimator(ViewGroup sceneRoot, TransitionValues startValues, |
| TransitionValues endValues) { |
| return null; |
| } |
| |
| /** |
| * Sets the order in which Transition matches View start and end values. |
| * <p> |
| * The default behavior is to match first by {@link android.view.View#getTransitionName()}, |
| * then by View instance, then by {@link android.view.View#getId()} and finally |
| * by its item ID if it is in a direct child of ListView. The caller can |
| * choose to have only some or all of the values of {@link #MATCH_INSTANCE}, |
| * {@link #MATCH_NAME}, {@link #MATCH_ITEM_ID}, and {@link #MATCH_ID}. Only |
| * the match algorithms supplied will be used to determine whether Views are the |
| * the same in both the start and end Scene. Views that do not match will be considered |
| * as entering or leaving the Scene. |
| * </p> |
| * @param matches A list of zero or more of {@link #MATCH_INSTANCE}, |
| * {@link #MATCH_NAME}, {@link #MATCH_ITEM_ID}, and {@link #MATCH_ID}. |
| * If none are provided, then the default match order will be set. |
| */ |
| public void setMatchOrder(int... matches) { |
| if (matches == null || matches.length == 0) { |
| mMatchOrder = DEFAULT_MATCH_ORDER; |
| } else { |
| for (int i = 0; i < matches.length; i++) { |
| int match = matches[i]; |
| if (!isValidMatch(match)) { |
| throw new IllegalArgumentException("matches contains invalid value"); |
| } |
| if (alreadyContains(matches, i)) { |
| throw new IllegalArgumentException("matches contains a duplicate value"); |
| } |
| } |
| mMatchOrder = matches.clone(); |
| } |
| } |
| |
| private static boolean isValidMatch(int match) { |
| return (match >= MATCH_FIRST && match <= MATCH_LAST); |
| } |
| |
| private static boolean alreadyContains(int[] array, int searchIndex) { |
| int value = array[searchIndex]; |
| for (int i = 0; i < searchIndex; i++) { |
| if (array[i] == value) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Match start/end values by View instance. Adds matched values to mStartValuesList |
| * and mEndValuesList and removes them from unmatchedStart and unmatchedEnd. |
| */ |
| private void matchInstances(ArrayMap<View, TransitionValues> unmatchedStart, |
| ArrayMap<View, TransitionValues> unmatchedEnd) { |
| for (int i = unmatchedStart.size() - 1; i >= 0; i--) { |
| View view = unmatchedStart.keyAt(i); |
| TransitionValues end = unmatchedEnd.remove(view); |
| if (end != null) { |
| TransitionValues start = unmatchedStart.removeAt(i); |
| mStartValuesList.add(start); |
| mEndValuesList.add(end); |
| } |
| } |
| } |
| |
| /** |
| * Match start/end values by Adapter item ID. Adds matched values to mStartValuesList |
| * and mEndValuesList and removes them from unmatchedStart and unmatchedEnd, using |
| * startItemIds and endItemIds as a guide for which Views have unique item IDs. |
| */ |
| private void matchItemIds(ArrayMap<View, TransitionValues> unmatchedStart, |
| ArrayMap<View, TransitionValues> unmatchedEnd, |
| LongSparseArray<View> startItemIds, LongSparseArray<View> endItemIds) { |
| int numStartIds = startItemIds.size(); |
| for (int i = 0; i < numStartIds; i++) { |
| View startView = startItemIds.valueAt(i); |
| if (startView != null) { |
| View endView = endItemIds.get(startItemIds.keyAt(i)); |
| if (endView != null) { |
| TransitionValues startValues = unmatchedStart.get(startView); |
| TransitionValues endValues = unmatchedEnd.get(endView); |
| if (startValues != null && endValues != null) { |
| mStartValuesList.add(startValues); |
| mEndValuesList.add(endValues); |
| unmatchedStart.remove(startView); |
| unmatchedEnd.remove(endView); |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Match start/end values by Adapter view ID. Adds matched values to mStartValuesList |
| * and mEndValuesList and removes them from unmatchedStart and unmatchedEnd, using |
| * startIds and endIds as a guide for which Views have unique IDs. |
| */ |
| private void matchIds(ArrayMap<View, TransitionValues> unmatchedStart, |
| ArrayMap<View, TransitionValues> unmatchedEnd, |
| SparseArray<View> startIds, SparseArray<View> endIds) { |
| int numStartIds = startIds.size(); |
| for (int i = 0; i < numStartIds; i++) { |
| View startView = startIds.valueAt(i); |
| if (startView != null && isValidTarget(startView)) { |
| View endView = endIds.get(startIds.keyAt(i)); |
| if (endView != null && isValidTarget(endView)) { |
| TransitionValues startValues = unmatchedStart.get(startView); |
| TransitionValues endValues = unmatchedEnd.get(endView); |
| if (startValues != null && endValues != null) { |
| mStartValuesList.add(startValues); |
| mEndValuesList.add(endValues); |
| unmatchedStart.remove(startView); |
| unmatchedEnd.remove(endView); |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Match start/end values by Adapter transitionName. Adds matched values to mStartValuesList |
| * and mEndValuesList and removes them from unmatchedStart and unmatchedEnd, using |
| * startNames and endNames as a guide for which Views have unique transitionNames. |
| */ |
| private void matchNames(ArrayMap<View, TransitionValues> unmatchedStart, |
| ArrayMap<View, TransitionValues> unmatchedEnd, |
| ArrayMap<String, View> startNames, ArrayMap<String, View> endNames) { |
| int numStartNames = startNames.size(); |
| for (int i = 0; i < numStartNames; i++) { |
| View startView = startNames.valueAt(i); |
| if (startView != null && isValidTarget(startView)) { |
| View endView = endNames.get(startNames.keyAt(i)); |
| if (endView != null && isValidTarget(endView)) { |
| TransitionValues startValues = unmatchedStart.get(startView); |
| TransitionValues endValues = unmatchedEnd.get(endView); |
| if (startValues != null && endValues != null) { |
| mStartValuesList.add(startValues); |
| mEndValuesList.add(endValues); |
| unmatchedStart.remove(startView); |
| unmatchedEnd.remove(endView); |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Adds all values from unmatchedStart and unmatchedEnd to mStartValuesList and mEndValuesList, |
| * assuming that there is no match between values in the list. |
| */ |
| private void addUnmatched(ArrayMap<View, TransitionValues> unmatchedStart, |
| ArrayMap<View, TransitionValues> unmatchedEnd) { |
| // Views that only exist in the start Scene |
| for (int i = 0; i < unmatchedStart.size(); i++) { |
| mStartValuesList.add(unmatchedStart.valueAt(i)); |
| mEndValuesList.add(null); |
| } |
| |
| // Views that only exist in the end Scene |
| for (int i = 0; i < unmatchedEnd.size(); i++) { |
| mEndValuesList.add(unmatchedEnd.valueAt(i)); |
| mStartValuesList.add(null); |
| } |
| } |
| |
| private void matchStartAndEnd(TransitionValuesMaps startValues, |
| TransitionValuesMaps endValues) { |
| ArrayMap<View, TransitionValues> unmatchedStart = |
| new ArrayMap<View, TransitionValues>(startValues.viewValues); |
| ArrayMap<View, TransitionValues> unmatchedEnd = |
| new ArrayMap<View, TransitionValues>(endValues.viewValues); |
| |
| for (int i = 0; i < mMatchOrder.length; i++) { |
| switch (mMatchOrder[i]) { |
| case MATCH_INSTANCE: |
| matchInstances(unmatchedStart, unmatchedEnd); |
| break; |
| case MATCH_NAME: |
| matchNames(unmatchedStart, unmatchedEnd, |
| startValues.nameValues, endValues.nameValues); |
| break; |
| case MATCH_ID: |
| matchIds(unmatchedStart, unmatchedEnd, |
| startValues.idValues, endValues.idValues); |
| break; |
| case MATCH_ITEM_ID: |
| matchItemIds(unmatchedStart, unmatchedEnd, |
| startValues.itemIdValues, endValues.itemIdValues); |
| break; |
| } |
| } |
| addUnmatched(unmatchedStart, unmatchedEnd); |
| } |
| |
| /** |
| * This method, essentially a wrapper around all calls to createAnimator for all |
| * possible target views, is called with the entire set of start/end |
| * values. The implementation in Transition iterates through these lists |
| * and calls {@link #createAnimator(ViewGroup, TransitionValues, TransitionValues)} |
| * with each set of start/end values on this transition. The |
| * TransitionSet subclass overrides this method and delegates it to |
| * each of its children in succession. |
| * |
| * @hide |
| */ |
| protected void createAnimators(ViewGroup sceneRoot, TransitionValuesMaps startValues, |
| TransitionValuesMaps endValues, ArrayList<TransitionValues> startValuesList, |
| ArrayList<TransitionValues> endValuesList) { |
| if (DBG) { |
| Log.d(LOG_TAG, "createAnimators() for " + this); |
| } |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| long minStartDelay = Long.MAX_VALUE; |
| int minAnimator = mAnimators.size(); |
| SparseLongArray startDelays = new SparseLongArray(); |
| int startValuesListCount = startValuesList.size(); |
| for (int i = 0; i < startValuesListCount; ++i) { |
| TransitionValues start = startValuesList.get(i); |
| TransitionValues end = endValuesList.get(i); |
| if (start != null && !start.targetedTransitions.contains(this)) { |
| start = null; |
| } |
| if (end != null && !end.targetedTransitions.contains(this)) { |
| end = null; |
| } |
| if (start == null && end == null) { |
| continue; |
| } |
| // Only bother trying to animate with values that differ between start/end |
| boolean isChanged = start == null || end == null || areValuesChanged(start, end); |
| if (isChanged) { |
| if (DBG) { |
| View view = (end != null) ? end.view : start.view; |
| Log.d(LOG_TAG, " differing start/end values for view " + view); |
| if (start == null || end == null) { |
| Log.d(LOG_TAG, " " + ((start == null) ? |
| "start null, end non-null" : "start non-null, end null")); |
| } else { |
| for (String key : start.values.keySet()) { |
| Object startValue = start.values.get(key); |
| Object endValue = end.values.get(key); |
| if (startValue != endValue && !startValue.equals(endValue)) { |
| Log.d(LOG_TAG, " " + key + ": start(" + startValue + |
| "), end(" + endValue + ")"); |
| } |
| } |
| } |
| } |
| // TODO: what to do about targetIds and itemIds? |
| Animator animator = createAnimator(sceneRoot, start, end); |
| if (animator != null) { |
| // Save animation info for future cancellation purposes |
| View view = null; |
| TransitionValues infoValues = null; |
| if (end != null) { |
| view = end.view; |
| String[] properties = getTransitionProperties(); |
| if (view != null && properties != null && properties.length > 0) { |
| infoValues = new TransitionValues(); |
| infoValues.view = view; |
| TransitionValues newValues = endValues.viewValues.get(view); |
| if (newValues != null) { |
| for (int j = 0; j < properties.length; ++j) { |
| infoValues.values.put(properties[j], |
| newValues.values.get(properties[j])); |
| } |
| } |
| int numExistingAnims = runningAnimators.size(); |
| for (int j = 0; j < numExistingAnims; ++j) { |
| Animator anim = runningAnimators.keyAt(j); |
| AnimationInfo info = runningAnimators.get(anim); |
| if (info.values != null && info.view == view && |
| ((info.name == null && getName() == null) || |
| info.name.equals(getName()))) { |
| if (info.values.equals(infoValues)) { |
| // Favor the old animator |
| animator = null; |
| break; |
| } |
| } |
| } |
| } |
| } else { |
| view = (start != null) ? start.view : null; |
| } |
| if (animator != null) { |
| if (mPropagation != null) { |
| long delay = mPropagation |
| .getStartDelay(sceneRoot, this, start, end); |
| startDelays.put(mAnimators.size(), delay); |
| minStartDelay = Math.min(delay, minStartDelay); |
| } |
| AnimationInfo info = new AnimationInfo(view, getName(), this, |
| sceneRoot.getWindowId(), infoValues); |
| runningAnimators.put(animator, info); |
| mAnimators.add(animator); |
| } |
| } |
| } |
| } |
| if (minStartDelay != 0) { |
| for (int i = 0; i < startDelays.size(); i++) { |
| int index = startDelays.keyAt(i); |
| Animator animator = mAnimators.get(index); |
| long delay = startDelays.valueAt(i) - minStartDelay + animator.getStartDelay(); |
| animator.setStartDelay(delay); |
| } |
| } |
| } |
| |
| /** |
| * Internal utility method for checking whether a given view/id |
| * is valid for this transition, where "valid" means that either |
| * the Transition has no target/targetId list (the default, in which |
| * cause the transition should act on all views in the hiearchy), or |
| * the given view is in the target list or the view id is in the |
| * targetId list. If the target parameter is null, then the target list |
| * is not checked (this is in the case of ListView items, where the |
| * views are ignored and only the ids are used). |
| */ |
| boolean isValidTarget(View target) { |
| int targetId = target.getId(); |
| if (mTargetIdExcludes != null && mTargetIdExcludes.contains(targetId)) { |
| return false; |
| } |
| if (mTargetExcludes != null && mTargetExcludes.contains(target)) { |
| return false; |
| } |
| if (mTargetTypeExcludes != null && target != null) { |
| int numTypes = mTargetTypeExcludes.size(); |
| for (int i = 0; i < numTypes; ++i) { |
| Class type = mTargetTypeExcludes.get(i); |
| if (type.isInstance(target)) { |
| return false; |
| } |
| } |
| } |
| if (mTargetNameExcludes != null && target != null && target.getTransitionName() != null) { |
| if (mTargetNameExcludes.contains(target.getTransitionName())) { |
| return false; |
| } |
| } |
| if (mTargetIds.size() == 0 && mTargets.size() == 0 && |
| (mTargetTypes == null || mTargetTypes.isEmpty()) && |
| (mTargetNames == null || mTargetNames.isEmpty())) { |
| return true; |
| } |
| if (mTargetIds.contains(targetId) || mTargets.contains(target)) { |
| return true; |
| } |
| if (mTargetNames != null && mTargetNames.contains(target.getTransitionName())) { |
| return true; |
| } |
| if (mTargetTypes != null) { |
| for (int i = 0; i < mTargetTypes.size(); ++i) { |
| if (mTargetTypes.get(i).isInstance(target)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| private static ArrayMap<Animator, AnimationInfo> getRunningAnimators() { |
| ArrayMap<Animator, AnimationInfo> runningAnimators = sRunningAnimators.get(); |
| if (runningAnimators == null) { |
| runningAnimators = new ArrayMap<Animator, AnimationInfo>(); |
| sRunningAnimators.set(runningAnimators); |
| } |
| return runningAnimators; |
| } |
| |
| /** |
| * This is called internally once all animations have been set up by the |
| * transition hierarchy. |
| * |
| * @hide |
| */ |
| protected void runAnimators() { |
| if (DBG) { |
| Log.d(LOG_TAG, "runAnimators() on " + this); |
| } |
| start(); |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| // Now start every Animator that was previously created for this transition |
| for (Animator anim : mAnimators) { |
| if (DBG) { |
| Log.d(LOG_TAG, " anim: " + anim); |
| } |
| if (runningAnimators.containsKey(anim)) { |
| start(); |
| runAnimator(anim, runningAnimators); |
| } |
| } |
| mAnimators.clear(); |
| end(); |
| } |
| |
| private void runAnimator(Animator animator, |
| final ArrayMap<Animator, AnimationInfo> runningAnimators) { |
| if (animator != null) { |
| // TODO: could be a single listener instance for all of them since it uses the param |
| animator.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationStart(Animator animation) { |
| mCurrentAnimators.add(animation); |
| } |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| runningAnimators.remove(animation); |
| mCurrentAnimators.remove(animation); |
| } |
| }); |
| animate(animator); |
| } |
| } |
| |
| /** |
| * Captures the values in the start scene for the properties that this |
| * transition monitors. These values are then passed as the startValues |
| * structure in a later call to |
| * {@link #createAnimator(ViewGroup, TransitionValues, TransitionValues)}. |
| * The main concern for an implementation is what the |
| * properties are that the transition cares about and what the values are |
| * for all of those properties. The start and end values will be compared |
| * later during the |
| * {@link #createAnimator(android.view.ViewGroup, TransitionValues, TransitionValues)} |
| * method to determine what, if any, animations, should be run. |
| * |
| * <p>Subclasses must implement this method. The method should only be called by the |
| * transition system; it is not intended to be called from external classes.</p> |
| * |
| * @param transitionValues The holder for any values that the Transition |
| * wishes to store. Values are stored in the <code>values</code> field |
| * of this TransitionValues object and are keyed from |
| * a String value. For example, to store a view's rotation value, |
| * a transition might call |
| * <code>transitionValues.values.put("appname:transitionname:rotation", |
| * view.getRotation())</code>. The target view will already be stored in |
| * the transitionValues structure when this method is called. |
| * |
| * @see #captureEndValues(TransitionValues) |
| * @see #createAnimator(ViewGroup, TransitionValues, TransitionValues) |
| */ |
| public abstract void captureStartValues(TransitionValues transitionValues); |
| |
| /** |
| * Captures the values in the end scene for the properties that this |
| * transition monitors. These values are then passed as the endValues |
| * structure in a later call to |
| * {@link #createAnimator(ViewGroup, TransitionValues, TransitionValues)}. |
| * The main concern for an implementation is what the |
| * properties are that the transition cares about and what the values are |
| * for all of those properties. The start and end values will be compared |
| * later during the |
| * {@link #createAnimator(android.view.ViewGroup, TransitionValues, TransitionValues)} |
| * method to determine what, if any, animations, should be run. |
| * |
| * <p>Subclasses must implement this method. The method should only be called by the |
| * transition system; it is not intended to be called from external classes.</p> |
| * |
| * @param transitionValues The holder for any values that the Transition |
| * wishes to store. Values are stored in the <code>values</code> field |
| * of this TransitionValues object and are keyed from |
| * a String value. For example, to store a view's rotation value, |
| * a transition might call |
| * <code>transitionValues.values.put("appname:transitionname:rotation", |
| * view.getRotation())</code>. The target view will already be stored in |
| * the transitionValues structure when this method is called. |
| * |
| * @see #captureStartValues(TransitionValues) |
| * @see #createAnimator(ViewGroup, TransitionValues, TransitionValues) |
| */ |
| public abstract void captureEndValues(TransitionValues transitionValues); |
| |
| /** |
| * Adds the id of a target view that this Transition is interested in |
| * animating. By default, there are no targetIds, and a Transition will |
| * listen for changes on every view in the hierarchy below the sceneRoot |
| * of the Scene being transitioned into. Setting targetIds constrains |
| * the Transition to only listen for, and act on, views with these IDs. |
| * Views with different IDs, or no IDs whatsoever, will be ignored. |
| * |
| * <p>Note that using ids to specify targets implies that ids should be unique |
| * within the view hierarchy underneath the scene root.</p> |
| * |
| * @see View#getId() |
| * @param targetId The id of a target view, must be a positive number. |
| * @return The Transition to which the targetId is added. |
| * Returning the same object makes it easier to chain calls during |
| * construction, such as |
| * <code>transitionSet.addTransitions(new Fade()).addTarget(someId);</code> |
| */ |
| public Transition addTarget(int targetId) { |
| if (targetId > 0) { |
| mTargetIds.add(targetId); |
| } |
| return this; |
| } |
| |
| /** |
| * Adds the transitionName of a target view that this Transition is interested in |
| * animating. By default, there are no targetNames, and a Transition will |
| * listen for changes on every view in the hierarchy below the sceneRoot |
| * of the Scene being transitioned into. Setting targetNames constrains |
| * the Transition to only listen for, and act on, views with these transitionNames. |
| * Views with different transitionNames, or no transitionName whatsoever, will be ignored. |
| * |
| * <p>Note that transitionNames should be unique within the view hierarchy.</p> |
| * |
| * @see android.view.View#getTransitionName() |
| * @param targetName The transitionName of a target view, must be non-null. |
| * @return The Transition to which the target transitionName is added. |
| * Returning the same object makes it easier to chain calls during |
| * construction, such as |
| * <code>transitionSet.addTransitions(new Fade()).addTarget(someName);</code> |
| */ |
| public Transition addTarget(String targetName) { |
| if (targetName != null) { |
| if (mTargetNames == null) { |
| mTargetNames = new ArrayList<String>(); |
| } |
| mTargetNames.add(targetName); |
| } |
| return this; |
| } |
| |
| /** |
| * Adds the Class of a target view that this Transition is interested in |
| * animating. By default, there are no targetTypes, and a Transition will |
| * listen for changes on every view in the hierarchy below the sceneRoot |
| * of the Scene being transitioned into. Setting targetTypes constrains |
| * the Transition to only listen for, and act on, views with these classes. |
| * Views with different classes will be ignored. |
| * |
| * <p>Note that any View that can be cast to targetType will be included, so |
| * if targetType is <code>View.class</code>, all Views will be included.</p> |
| * |
| * @see #addTarget(int) |
| * @see #addTarget(android.view.View) |
| * @see #excludeTarget(Class, boolean) |
| * @see #excludeChildren(Class, boolean) |
| * |
| * @param targetType The type to include when running this transition. |
| * @return The Transition to which the target class was added. |
| * Returning the same object makes it easier to chain calls during |
| * construction, such as |
| * <code>transitionSet.addTransitions(new Fade()).addTarget(ImageView.class);</code> |
| */ |
| public Transition addTarget(Class targetType) { |
| if (targetType != null) { |
| if (mTargetTypes == null) { |
| mTargetTypes = new ArrayList<Class>(); |
| } |
| mTargetTypes.add(targetType); |
| } |
| return this; |
| } |
| |
| /** |
| * Removes the given targetId from the list of ids that this Transition |
| * is interested in animating. |
| * |
| * @param targetId The id of a target view, must be a positive number. |
| * @return The Transition from which the targetId is removed. |
| * Returning the same object makes it easier to chain calls during |
| * construction, such as |
| * <code>transitionSet.addTransitions(new Fade()).removeTargetId(someId);</code> |
| */ |
| public Transition removeTarget(int targetId) { |
| if (targetId > 0) { |
| mTargetIds.remove(targetId); |
| } |
| return this; |
| } |
| |
| /** |
| * Removes the given targetName from the list of transitionNames that this Transition |
| * is interested in animating. |
| * |
| * @param targetName The transitionName of a target view, must not be null. |
| * @return The Transition from which the targetName is removed. |
| * Returning the same object makes it easier to chain calls during |
| * construction, such as |
| * <code>transitionSet.addTransitions(new Fade()).removeTargetName(someName);</code> |
| */ |
| public Transition removeTarget(String targetName) { |
| if (targetName != null && mTargetNames != null) { |
| mTargetNames.remove(targetName); |
| } |
| return this; |
| } |
| |
| /** |
| * Whether to add the given id to the list of target ids to exclude from this |
| * transition. The <code>exclude</code> parameter specifies whether the target |
| * should be added to or removed from the excluded list. |
| * |
| * <p>Excluding targets is a general mechanism for allowing transitions to run on |
| * a view hierarchy while skipping target views that should not be part of |
| * the transition. For example, you may want to avoid animating children |
| * of a specific ListView or Spinner. Views can be excluded either by their |
| * id, or by their instance reference, or by the Class of that view |
| * (eg, {@link Spinner}).</p> |
| * |
| * @see #excludeChildren(int, boolean) |
| * @see #excludeTarget(View, boolean) |
| * @see #excludeTarget(Class, boolean) |
| * |
| * @param targetId The id of a target to ignore when running this transition. |
| * @param exclude Whether to add the target to or remove the target from the |
| * current list of excluded targets. |
| * @return This transition object. |
| */ |
| public Transition excludeTarget(int targetId, boolean exclude) { |
| if (targetId >= 0) { |
| mTargetIdExcludes = excludeObject(mTargetIdExcludes, targetId, exclude); |
| } |
| return this; |
| } |
| |
| /** |
| * Whether to add the given transitionName to the list of target transitionNames to exclude |
| * from this transition. The <code>exclude</code> parameter specifies whether the target |
| * should be added to or removed from the excluded list. |
| * |
| * <p>Excluding targets is a general mechanism for allowing transitions to run on |
| * a view hierarchy while skipping target views that should not be part of |
| * the transition. For example, you may want to avoid animating children |
| * of a specific ListView or Spinner. Views can be excluded by their |
| * id, their instance reference, their transitionName, or by the Class of that view |
| * (eg, {@link Spinner}).</p> |
| * |
| * @see #excludeTarget(View, boolean) |
| * @see #excludeTarget(int, boolean) |
| * @see #excludeTarget(Class, boolean) |
| * |
| * @param targetName The name of a target to ignore when running this transition. |
| * @param exclude Whether to add the target to or remove the target from the |
| * current list of excluded targets. |
| * @return This transition object. |
| */ |
| public Transition excludeTarget(String targetName, boolean exclude) { |
| mTargetNameExcludes = excludeObject(mTargetNameExcludes, targetName, exclude); |
| return this; |
| } |
| |
| /** |
| * Whether to add the children of the given id to the list of targets to exclude |
| * from this transition. The <code>exclude</code> parameter specifies whether |
| * the children of the target should be added to or removed from the excluded list. |
| * Excluding children in this way provides a simple mechanism for excluding all |
| * children of specific targets, rather than individually excluding each |
| * child individually. |
| * |
| * <p>Excluding targets is a general mechanism for allowing transitions to run on |
| * a view hierarchy while skipping target views that should not be part of |
| * the transition. For example, you may want to avoid animating children |
| * of a specific ListView or Spinner. Views can be excluded either by their |
| * id, or by their instance reference, or by the Class of that view |
| * (eg, {@link Spinner}).</p> |
| * |
| * @see #excludeTarget(int, boolean) |
| * @see #excludeChildren(View, boolean) |
| * @see #excludeChildren(Class, boolean) |
| * |
| * @param targetId The id of a target whose children should be ignored when running |
| * this transition. |
| * @param exclude Whether to add the target to or remove the target from the |
| * current list of excluded-child targets. |
| * @return This transition object. |
| */ |
| public Transition excludeChildren(int targetId, boolean exclude) { |
| if (targetId >= 0) { |
| mTargetIdChildExcludes = excludeObject(mTargetIdChildExcludes, targetId, exclude); |
| } |
| return this; |
| } |
| |
| /** |
| * Whether to add the given target to the list of targets to exclude from this |
| * transition. The <code>exclude</code> parameter specifies whether the target |
| * should be added to or removed from the excluded list. |
| * |
| * <p>Excluding targets is a general mechanism for allowing transitions to run on |
| * a view hierarchy while skipping target views that should not be part of |
| * the transition. For example, you may want to avoid animating children |
| * of a specific ListView or Spinner. Views can be excluded either by their |
| * id, or by their instance reference, or by the Class of that view |
| * (eg, {@link Spinner}).</p> |
| * |
| * @see #excludeChildren(View, boolean) |
| * @see #excludeTarget(int, boolean) |
| * @see #excludeTarget(Class, boolean) |
| * |
| * @param target The target to ignore when running this transition. |
| * @param exclude Whether to add the target to or remove the target from the |
| * current list of excluded targets. |
| * @return This transition object. |
| */ |
| public Transition excludeTarget(View target, boolean exclude) { |
| mTargetExcludes = excludeObject(mTargetExcludes, target, exclude); |
| return this; |
| } |
| |
| /** |
| * Whether to add the children of given target to the list of target children |
| * to exclude from this transition. The <code>exclude</code> parameter specifies |
| * whether the target should be added to or removed from the excluded list. |
| * |
| * <p>Excluding targets is a general mechanism for allowing transitions to run on |
| * a view hierarchy while skipping target views that should not be part of |
| * the transition. For example, you may want to avoid animating children |
| * of a specific ListView or Spinner. Views can be excluded either by their |
| * id, or by their instance reference, or by the Class of that view |
| * (eg, {@link Spinner}).</p> |
| * |
| * @see #excludeTarget(View, boolean) |
| * @see #excludeChildren(int, boolean) |
| * @see #excludeChildren(Class, boolean) |
| * |
| * @param target The target to ignore when running this transition. |
| * @param exclude Whether to add the target to or remove the target from the |
| * current list of excluded targets. |
| * @return This transition object. |
| */ |
| public Transition excludeChildren(View target, boolean exclude) { |
| mTargetChildExcludes = excludeObject(mTargetChildExcludes, target, exclude); |
| return this; |
| } |
| |
| /** |
| * Utility method to manage the boilerplate code that is the same whether we |
| * are excluding targets or their children. |
| */ |
| private static <T> ArrayList<T> excludeObject(ArrayList<T> list, T target, boolean exclude) { |
| if (target != null) { |
| if (exclude) { |
| list = ArrayListManager.add(list, target); |
| } else { |
| list = ArrayListManager.remove(list, target); |
| } |
| } |
| return list; |
| } |
| |
| /** |
| * Whether to add the given type to the list of types to exclude from this |
| * transition. The <code>exclude</code> parameter specifies whether the target |
| * type should be added to or removed from the excluded list. |
| * |
| * <p>Excluding targets is a general mechanism for allowing transitions to run on |
| * a view hierarchy while skipping target views that should not be part of |
| * the transition. For example, you may want to avoid animating children |
| * of a specific ListView or Spinner. Views can be excluded either by their |
| * id, or by their instance reference, or by the Class of that view |
| * (eg, {@link Spinner}).</p> |
| * |
| * @see #excludeChildren(Class, boolean) |
| * @see #excludeTarget(int, boolean) |
| * @see #excludeTarget(View, boolean) |
| * |
| * @param type The type to ignore when running this transition. |
| * @param exclude Whether to add the target type to or remove it from the |
| * current list of excluded target types. |
| * @return This transition object. |
| */ |
| public Transition excludeTarget(Class type, boolean exclude) { |
| mTargetTypeExcludes = excludeObject(mTargetTypeExcludes, type, exclude); |
| return this; |
| } |
| |
| /** |
| * Whether to add the given type to the list of types whose children should |
| * be excluded from this transition. The <code>exclude</code> parameter |
| * specifies whether the target type should be added to or removed from |
| * the excluded list. |
| * |
| * <p>Excluding targets is a general mechanism for allowing transitions to run on |
| * a view hierarchy while skipping target views that should not be part of |
| * the transition. For example, you may want to avoid animating children |
| * of a specific ListView or Spinner. Views can be excluded either by their |
| * id, or by their instance reference, or by the Class of that view |
| * (eg, {@link Spinner}).</p> |
| * |
| * @see #excludeTarget(Class, boolean) |
| * @see #excludeChildren(int, boolean) |
| * @see #excludeChildren(View, boolean) |
| * |
| * @param type The type to ignore when running this transition. |
| * @param exclude Whether to add the target type to or remove it from the |
| * current list of excluded target types. |
| * @return This transition object. |
| */ |
| public Transition excludeChildren(Class type, boolean exclude) { |
| mTargetTypeChildExcludes = excludeObject(mTargetTypeChildExcludes, type, exclude); |
| return this; |
| } |
| |
| /** |
| * Sets the target view instances that this Transition is interested in |
| * animating. By default, there are no targets, and a Transition will |
| * listen for changes on every view in the hierarchy below the sceneRoot |
| * of the Scene being transitioned into. Setting targets constrains |
| * the Transition to only listen for, and act on, these views. |
| * All other views will be ignored. |
| * |
| * <p>The target list is like the {@link #addTarget(int) targetId} |
| * list except this list specifies the actual View instances, not the ids |
| * of the views. This is an important distinction when scene changes involve |
| * view hierarchies which have been inflated separately; different views may |
| * share the same id but not actually be the same instance. If the transition |
| * should treat those views as the same, then {@link #addTarget(int)} should be used |
| * instead of {@link #addTarget(View)}. If, on the other hand, scene changes involve |
| * changes all within the same view hierarchy, among views which do not |
| * necessarily have ids set on them, then the target list of views may be more |
| * convenient.</p> |
| * |
| * @see #addTarget(int) |
| * @param target A View on which the Transition will act, must be non-null. |
| * @return The Transition to which the target is added. |
| * Returning the same object makes it easier to chain calls during |
| * construction, such as |
| * <code>transitionSet.addTransitions(new Fade()).addTarget(someView);</code> |
| */ |
| public Transition addTarget(View target) { |
| mTargets.add(target); |
| return this; |
| } |
| |
| /** |
| * Removes the given target from the list of targets that this Transition |
| * is interested in animating. |
| * |
| * @param target The target view, must be non-null. |
| * @return Transition The Transition from which the target is removed. |
| * Returning the same object makes it easier to chain calls during |
| * construction, such as |
| * <code>transitionSet.addTransitions(new Fade()).removeTarget(someView);</code> |
| */ |
| public Transition removeTarget(View target) { |
| if (target != null) { |
| mTargets.remove(target); |
| } |
| return this; |
| } |
| |
| /** |
| * Removes the given target from the list of targets that this Transition |
| * is interested in animating. |
| * |
| * @param target The type of the target view, must be non-null. |
| * @return Transition The Transition from which the target is removed. |
| * Returning the same object makes it easier to chain calls during |
| * construction, such as |
| * <code>transitionSet.addTransitions(new Fade()).removeTarget(someType);</code> |
| */ |
| public Transition removeTarget(Class target) { |
| if (target != null) { |
| mTargetTypes.remove(target); |
| } |
| return this; |
| } |
| |
| /** |
| * Returns the list of target IDs that this transition limits itself to |
| * tracking and animating. If the list is null or empty for |
| * {@link #getTargetIds()}, {@link #getTargets()}, {@link #getTargetNames()}, and |
| * {@link #getTargetTypes()} then this transition is |
| * not limited to specific views, and will handle changes to any views |
| * in the hierarchy of a scene change. |
| * |
| * @return the list of target IDs |
| */ |
| public List<Integer> getTargetIds() { |
| return mTargetIds; |
| } |
| |
| /** |
| * Returns the list of target views that this transition limits itself to |
| * tracking and animating. If the list is null or empty for |
| * {@link #getTargetIds()}, {@link #getTargets()}, {@link #getTargetNames()}, and |
| * {@link #getTargetTypes()} then this transition is |
| * not limited to specific views, and will handle changes to any views |
| * in the hierarchy of a scene change. |
| * |
| * @return the list of target views |
| */ |
| public List<View> getTargets() { |
| return mTargets; |
| } |
| |
| /** |
| * Returns the list of target transitionNames that this transition limits itself to |
| * tracking and animating. If the list is null or empty for |
| * {@link #getTargetIds()}, {@link #getTargets()}, {@link #getTargetNames()}, and |
| * {@link #getTargetTypes()} then this transition is |
| * not limited to specific views, and will handle changes to any views |
| * in the hierarchy of a scene change. |
| * |
| * @return the list of target transitionNames |
| */ |
| public List<String> getTargetNames() { |
| return mTargetNames; |
| } |
| |
| /** |
| * To be removed before L release. |
| * @hide |
| */ |
| public List<String> getTargetViewNames() { |
| return mTargetNames; |
| } |
| |
| /** |
| * Returns the list of target transitionNames that this transition limits itself to |
| * tracking and animating. If the list is null or empty for |
| * {@link #getTargetIds()}, {@link #getTargets()}, {@link #getTargetNames()}, and |
| * {@link #getTargetTypes()} then this transition is |
| * not limited to specific views, and will handle changes to any views |
| * in the hierarchy of a scene change. |
| * |
| * @return the list of target Types |
| */ |
| public List<Class> getTargetTypes() { |
| return mTargetTypes; |
| } |
| |
| /** |
| * Recursive method that captures values for the given view and the |
| * hierarchy underneath it. |
| * @param sceneRoot The root of the view hierarchy being captured |
| * @param start true if this capture is happening before the scene change, |
| * false otherwise |
| */ |
| void captureValues(ViewGroup sceneRoot, boolean start) { |
| clearValues(start); |
| if ((mTargetIds.size() > 0 || mTargets.size() > 0) |
| && (mTargetNames == null || mTargetNames.isEmpty()) |
| && (mTargetTypes == null || mTargetTypes.isEmpty())) { |
| for (int i = 0; i < mTargetIds.size(); ++i) { |
| int id = mTargetIds.get(i); |
| View view = sceneRoot.findViewById(id); |
| if (view != null) { |
| TransitionValues values = new TransitionValues(); |
| values.view = view; |
| if (start) { |
| captureStartValues(values); |
| } else { |
| captureEndValues(values); |
| } |
| values.targetedTransitions.add(this); |
| capturePropagationValues(values); |
| if (start) { |
| addViewValues(mStartValues, view, values); |
| } else { |
| addViewValues(mEndValues, view, values); |
| } |
| } |
| } |
| for (int i = 0; i < mTargets.size(); ++i) { |
| View view = mTargets.get(i); |
| TransitionValues values = new TransitionValues(); |
| values.view = view; |
| if (start) { |
| captureStartValues(values); |
| } else { |
| captureEndValues(values); |
| } |
| values.targetedTransitions.add(this); |
| capturePropagationValues(values); |
| if (start) { |
| addViewValues(mStartValues, view, values); |
| } else { |
| addViewValues(mEndValues, view, values); |
| } |
| } |
| } else { |
| captureHierarchy(sceneRoot, start); |
| } |
| if (!start && mNameOverrides != null) { |
| int numOverrides = mNameOverrides.size(); |
| ArrayList<View> overriddenViews = new ArrayList<View>(numOverrides); |
| for (int i = 0; i < numOverrides; i++) { |
| String fromName = mNameOverrides.keyAt(i); |
| overriddenViews.add(mStartValues.nameValues.remove(fromName)); |
| } |
| for (int i = 0; i < numOverrides; i++) { |
| View view = overriddenViews.get(i); |
| if (view != null) { |
| String toName = mNameOverrides.valueAt(i); |
| mStartValues.nameValues.put(toName, view); |
| } |
| } |
| } |
| } |
| |
| static void addViewValues(TransitionValuesMaps transitionValuesMaps, |
| View view, TransitionValues transitionValues) { |
| transitionValuesMaps.viewValues.put(view, transitionValues); |
| int id = view.getId(); |
| if (id >= 0) { |
| if (transitionValuesMaps.idValues.indexOfKey(id) >= 0) { |
| // Duplicate IDs cannot match by ID. |
| transitionValuesMaps.idValues.put(id, null); |
| } else { |
| transitionValuesMaps.idValues.put(id, view); |
| } |
| } |
| String name = view.getTransitionName(); |
| if (name != null) { |
| if (transitionValuesMaps.nameValues.containsKey(name)) { |
| // Duplicate transitionNames: cannot match by transitionName. |
| transitionValuesMaps.nameValues.put(name, null); |
| } else { |
| transitionValuesMaps.nameValues.put(name, view); |
| } |
| } |
| if (view.getParent() instanceof ListView) { |
| ListView listview = (ListView) view.getParent(); |
| if (listview.getAdapter().hasStableIds()) { |
| int position = listview.getPositionForView(view); |
| long itemId = listview.getItemIdAtPosition(position); |
| if (transitionValuesMaps.itemIdValues.indexOfKey(itemId) >= 0) { |
| // Duplicate item IDs: cannot match by item ID. |
| View alreadyMatched = transitionValuesMaps.itemIdValues.get(itemId); |
| if (alreadyMatched != null) { |
| alreadyMatched.setHasTransientState(false); |
| transitionValuesMaps.itemIdValues.put(itemId, null); |
| } |
| } else { |
| view.setHasTransientState(true); |
| transitionValuesMaps.itemIdValues.put(itemId, view); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Clear valuesMaps for specified start/end state |
| * |
| * @param start true if the start values should be cleared, false otherwise |
| */ |
| void clearValues(boolean start) { |
| if (start) { |
| mStartValues.viewValues.clear(); |
| mStartValues.idValues.clear(); |
| mStartValues.itemIdValues.clear(); |
| mStartValues.nameValues.clear(); |
| mStartValuesList = null; |
| } else { |
| mEndValues.viewValues.clear(); |
| mEndValues.idValues.clear(); |
| mEndValues.itemIdValues.clear(); |
| mEndValues.nameValues.clear(); |
| mEndValuesList = null; |
| } |
| } |
| |
| /** |
| * Recursive method which captures values for an entire view hierarchy, |
| * starting at some root view. Transitions without targetIDs will use this |
| * method to capture values for all possible views. |
| * |
| * @param view The view for which to capture values. Children of this View |
| * will also be captured, recursively down to the leaf nodes. |
| * @param start true if values are being captured in the start scene, false |
| * otherwise. |
| */ |
| private void captureHierarchy(View view, boolean start) { |
| if (view == null) { |
| return; |
| } |
| int id = view.getId(); |
| if (mTargetIdExcludes != null && mTargetIdExcludes.contains(id)) { |
| return; |
| } |
| if (mTargetExcludes != null && mTargetExcludes.contains(view)) { |
| return; |
| } |
| if (mTargetTypeExcludes != null && view != null) { |
| int numTypes = mTargetTypeExcludes.size(); |
| for (int i = 0; i < numTypes; ++i) { |
| if (mTargetTypeExcludes.get(i).isInstance(view)) { |
| return; |
| } |
| } |
| } |
| if (view.getParent() instanceof ViewGroup) { |
| TransitionValues values = new TransitionValues(); |
| values.view = view; |
| if (start) { |
| captureStartValues(values); |
| } else { |
| captureEndValues(values); |
| } |
| values.targetedTransitions.add(this); |
| capturePropagationValues(values); |
| if (start) { |
| addViewValues(mStartValues, view, values); |
| } else { |
| addViewValues(mEndValues, view, values); |
| } |
| } |
| if (view instanceof ViewGroup) { |
| // Don't traverse child hierarchy if there are any child-excludes on this view |
| if (mTargetIdChildExcludes != null && mTargetIdChildExcludes.contains(id)) { |
| return; |
| } |
| if (mTargetChildExcludes != null && mTargetChildExcludes.contains(view)) { |
| return; |
| } |
| if (mTargetTypeChildExcludes != null) { |
| int numTypes = mTargetTypeChildExcludes.size(); |
| for (int i = 0; i < numTypes; ++i) { |
| if (mTargetTypeChildExcludes.get(i).isInstance(view)) { |
| return; |
| } |
| } |
| } |
| ViewGroup parent = (ViewGroup) view; |
| for (int i = 0; i < parent.getChildCount(); ++i) { |
| captureHierarchy(parent.getChildAt(i), start); |
| } |
| } |
| } |
| |
| /** |
| * This method can be called by transitions to get the TransitionValues for |
| * any particular view during the transition-playing process. This might be |
| * necessary, for example, to query the before/after state of related views |
| * for a given transition. |
| */ |
| public TransitionValues getTransitionValues(View view, boolean start) { |
| if (mParent != null) { |
| return mParent.getTransitionValues(view, start); |
| } |
| TransitionValuesMaps valuesMaps = start ? mStartValues : mEndValues; |
| return valuesMaps.viewValues.get(view); |
| } |
| |
| /** |
| * Find the matched start or end value for a given View. This is only valid |
| * after playTransition starts. For example, it will be valid in |
| * {@link #createAnimator(android.view.ViewGroup, TransitionValues, TransitionValues)}, but not |
| * in {@link #captureStartValues(TransitionValues)}. |
| * |
| * @param view The view to find the match for. |
| * @param viewInStart Is View from the start values or end values. |
| * @return The matching TransitionValues for view in either start or end values, depending |
| * on viewInStart or null if there is no match for the given view. |
| */ |
| TransitionValues getMatchedTransitionValues(View view, boolean viewInStart) { |
| if (mParent != null) { |
| return mParent.getMatchedTransitionValues(view, viewInStart); |
| } |
| ArrayList<TransitionValues> lookIn = viewInStart ? mStartValuesList : mEndValuesList; |
| if (lookIn == null) { |
| return null; |
| } |
| int count = lookIn.size(); |
| int index = -1; |
| for (int i = 0; i < count; i++) { |
| TransitionValues values = lookIn.get(i); |
| if (values == null) { |
| return null; |
| } |
| if (values.view == view) { |
| index = i; |
| break; |
| } |
| } |
| TransitionValues values = null; |
| if (index >= 0) { |
| ArrayList<TransitionValues> matchIn = viewInStart ? mEndValuesList : mStartValuesList; |
| values = matchIn.get(index); |
| } |
| return values; |
| } |
| |
| /** |
| * Pauses this transition, sending out calls to {@link |
| * TransitionListener#onTransitionPause(Transition)} to all listeners |
| * and pausing all running animators started by this transition. |
| * |
| * @hide |
| */ |
| public void pause(View sceneRoot) { |
| if (!mEnded) { |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| int numOldAnims = runningAnimators.size(); |
| if (sceneRoot != null) { |
| WindowId windowId = sceneRoot.getWindowId(); |
| for (int i = numOldAnims - 1; i >= 0; i--) { |
| AnimationInfo info = runningAnimators.valueAt(i); |
| if (info.view != null && windowId != null && windowId.equals(info.windowId)) { |
| Animator anim = runningAnimators.keyAt(i); |
| anim.pause(); |
| } |
| } |
| } |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionPause(this); |
| } |
| } |
| mPaused = true; |
| } |
| } |
| |
| /** |
| * Resumes this transition, sending out calls to {@link |
| * TransitionListener#onTransitionPause(Transition)} to all listeners |
| * and pausing all running animators started by this transition. |
| * |
| * @hide |
| */ |
| public void resume(View sceneRoot) { |
| if (mPaused) { |
| if (!mEnded) { |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| int numOldAnims = runningAnimators.size(); |
| WindowId windowId = sceneRoot.getWindowId(); |
| for (int i = numOldAnims - 1; i >= 0; i--) { |
| AnimationInfo info = runningAnimators.valueAt(i); |
| if (info.view != null && windowId != null && windowId.equals(info.windowId)) { |
| Animator anim = runningAnimators.keyAt(i); |
| anim.resume(); |
| } |
| } |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionResume(this); |
| } |
| } |
| } |
| mPaused = false; |
| } |
| } |
| |
| /** |
| * Called by TransitionManager to play the transition. This calls |
| * createAnimators() to set things up and create all of the animations and then |
| * runAnimations() to actually start the animations. |
| */ |
| void playTransition(ViewGroup sceneRoot) { |
| mStartValuesList = new ArrayList<TransitionValues>(); |
| mEndValuesList = new ArrayList<TransitionValues>(); |
| matchStartAndEnd(mStartValues, mEndValues); |
| |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| int numOldAnims = runningAnimators.size(); |
| WindowId windowId = sceneRoot.getWindowId(); |
| for (int i = numOldAnims - 1; i >= 0; i--) { |
| Animator anim = runningAnimators.keyAt(i); |
| if (anim != null) { |
| AnimationInfo oldInfo = runningAnimators.get(anim); |
| if (oldInfo != null && oldInfo.view != null && oldInfo.windowId == windowId) { |
| TransitionValues oldValues = oldInfo.values; |
| View oldView = oldInfo.view; |
| TransitionValues startValues = getTransitionValues(oldView, true); |
| TransitionValues endValues = getMatchedTransitionValues(oldView, true); |
| boolean cancel = (startValues != null || endValues != null) && |
| oldInfo.transition.areValuesChanged(oldValues, endValues); |
| if (cancel) { |
| if (anim.isRunning() || anim.isStarted()) { |
| if (DBG) { |
| Log.d(LOG_TAG, "Canceling anim " + anim); |
| } |
| anim.cancel(); |
| } else { |
| if (DBG) { |
| Log.d(LOG_TAG, "removing anim from info list: " + anim); |
| } |
| runningAnimators.remove(anim); |
| } |
| } |
| } |
| } |
| } |
| |
| createAnimators(sceneRoot, mStartValues, mEndValues, mStartValuesList, mEndValuesList); |
| runAnimators(); |
| } |
| |
| /** |
| * Returns whether transition values have changed between the start scene and the end scene |
| * (thus determining whether animation is required). The default implementation compares the |
| * property values returned from {@link #getTransitionProperties()}, or all property values if |
| * {@code getTransitionProperties()} returns null. Subclasses may override this method to |
| * provide logic more specific to their transition implementation. |
| * |
| * @param oldValues the first set of values, may be {@code null} |
| * @param newValues the second set of values, may be {@code null} |
| */ |
| protected boolean areValuesChanged(TransitionValues oldValues, TransitionValues newValues) { |
| boolean valuesChanged = false; |
| // if oldValues null, then transition didn't care to stash values, |
| // and won't get canceled |
| if (oldValues != null && newValues != null) { |
| String[] properties = getTransitionProperties(); |
| if (properties != null) { |
| int count = properties.length; |
| for (int i = 0; i < count; i++) { |
| if (isValueChanged(oldValues, newValues, properties[i])) { |
| valuesChanged = true; |
| break; |
| } |
| } |
| } else { |
| for (String key : oldValues.values.keySet()) { |
| if (isValueChanged(oldValues, newValues, key)) { |
| valuesChanged = true; |
| break; |
| } |
| } |
| } |
| } |
| return valuesChanged; |
| } |
| |
| private static boolean isValueChanged(TransitionValues oldValues, TransitionValues newValues, |
| String key) { |
| if (oldValues.values.containsKey(key) != newValues.values.containsKey(key)) { |
| // The transition didn't care about this particular value, so we don't care, either. |
| return false; |
| } |
| Object oldValue = oldValues.values.get(key); |
| Object newValue = newValues.values.get(key); |
| boolean changed; |
| if (oldValue == null && newValue == null) { |
| // both are null |
| changed = false; |
| } else if (oldValue == null || newValue == null) { |
| // one is null |
| changed = true; |
| } else { |
| // neither is null |
| changed = !oldValue.equals(newValue); |
| } |
| if (DBG && changed) { |
| Log.d(LOG_TAG, "Transition.playTransition: " + |
| "oldValue != newValue for " + key + |
| ": old, new = " + oldValue + ", " + newValue); |
| } |
| return changed; |
| } |
| |
| /** |
| * This is a utility method used by subclasses to handle standard parts of |
| * setting up and running an Animator: it sets the {@link #getDuration() |
| * duration} and the {@link #getStartDelay() startDelay}, starts the |
| * animation, and, when the animator ends, calls {@link #end()}. |
| * |
| * @param animator The Animator to be run during this transition. |
| * |
| * @hide |
| */ |
| protected void animate(Animator animator) { |
| // TODO: maybe pass auto-end as a boolean parameter? |
| if (animator == null) { |
| end(); |
| } else { |
| if (getDuration() >= 0) { |
| animator.setDuration(getDuration()); |
| } |
| if (getStartDelay() >= 0) { |
| animator.setStartDelay(getStartDelay() + animator.getStartDelay()); |
| } |
| if (getInterpolator() != null) { |
| animator.setInterpolator(getInterpolator()); |
| } |
| animator.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| end(); |
| animation.removeListener(this); |
| } |
| }); |
| animator.start(); |
| } |
| } |
| |
| /** |
| * This method is called automatically by the transition and |
| * TransitionSet classes prior to a Transition subclass starting; |
| * subclasses should not need to call it directly. |
| * |
| * @hide |
| */ |
| protected void start() { |
| if (mNumInstances == 0) { |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionStart(this); |
| } |
| } |
| mEnded = false; |
| } |
| mNumInstances++; |
| } |
| |
| /** |
| * This method is called automatically by the Transition and |
| * TransitionSet classes when a transition finishes, either because |
| * a transition did nothing (returned a null Animator from |
| * {@link Transition#createAnimator(ViewGroup, TransitionValues, |
| * TransitionValues)}) or because the transition returned a valid |
| * Animator and end() was called in the onAnimationEnd() |
| * callback of the AnimatorListener. |
| * |
| * @hide |
| */ |
| protected void end() { |
| --mNumInstances; |
| if (mNumInstances == 0) { |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionEnd(this); |
| } |
| } |
| for (int i = 0; i < mStartValues.itemIdValues.size(); ++i) { |
| View view = mStartValues.itemIdValues.valueAt(i); |
| if (view != null) { |
| view.setHasTransientState(false); |
| } |
| } |
| for (int i = 0; i < mEndValues.itemIdValues.size(); ++i) { |
| View view = mEndValues.itemIdValues.valueAt(i); |
| if (view != null) { |
| view.setHasTransientState(false); |
| } |
| } |
| mEnded = true; |
| } |
| } |
| |
| /** |
| * This method cancels a transition that is currently running. |
| * |
| * @hide |
| */ |
| protected void cancel() { |
| int numAnimators = mCurrentAnimators.size(); |
| for (int i = numAnimators - 1; i >= 0; i--) { |
| Animator animator = mCurrentAnimators.get(i); |
| animator.cancel(); |
| } |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionCancel(this); |
| } |
| } |
| } |
| |
| /** |
| * Adds a listener to the set of listeners that are sent events through the |
| * life of an animation, such as start, repeat, and end. |
| * |
| * @param listener the listener to be added to the current set of listeners |
| * for this animation. |
| * @return This transition object. |
| */ |
| public Transition addListener(TransitionListener listener) { |
| if (mListeners == null) { |
| mListeners = new ArrayList<TransitionListener>(); |
| } |
| mListeners.add(listener); |
| return this; |
| } |
| |
| /** |
| * Removes a listener from the set listening to this animation. |
| * |
| * @param listener the listener to be removed from the current set of |
| * listeners for this transition. |
| * @return This transition object. |
| */ |
| public Transition removeListener(TransitionListener listener) { |
| if (mListeners == null) { |
| return this; |
| } |
| mListeners.remove(listener); |
| if (mListeners.size() == 0) { |
| mListeners = null; |
| } |
| return this; |
| } |
| |
| /** |
| * Sets the callback to use to find the epicenter of a Transition. A null value indicates |
| * that there is no epicenter in the Transition and onGetEpicenter() will return null. |
| * Transitions like {@link android.transition.Explode} use a point or Rect to orient |
| * the direction of travel. This is called the epicenter of the Transition and is |
| * typically centered on a touched View. The |
| * {@link android.transition.Transition.EpicenterCallback} allows a Transition to |
| * dynamically retrieve the epicenter during a Transition. |
| * @param epicenterCallback The callback to use to find the epicenter of the Transition. |
| */ |
| public void setEpicenterCallback(EpicenterCallback epicenterCallback) { |
| mEpicenterCallback = epicenterCallback; |
| } |
| |
| /** |
| * Returns the callback used to find the epicenter of the Transition. |
| * Transitions like {@link android.transition.Explode} use a point or Rect to orient |
| * the direction of travel. This is called the epicenter of the Transition and is |
| * typically centered on a touched View. The |
| * {@link android.transition.Transition.EpicenterCallback} allows a Transition to |
| * dynamically retrieve the epicenter during a Transition. |
| * @return the callback used to find the epicenter of the Transition. |
| */ |
| public EpicenterCallback getEpicenterCallback() { |
| return mEpicenterCallback; |
| } |
| |
| /** |
| * Returns the epicenter as specified by the |
| * {@link android.transition.Transition.EpicenterCallback} or null if no callback exists. |
| * @return the epicenter as specified by the |
| * {@link android.transition.Transition.EpicenterCallback} or null if no callback exists. |
| * @see #setEpicenterCallback(android.transition.Transition.EpicenterCallback) |
| */ |
| public Rect getEpicenter() { |
| if (mEpicenterCallback == null) { |
| return null; |
| } |
| return mEpicenterCallback.onGetEpicenter(this); |
| } |
| |
| /** |
| * Sets the algorithm used to calculate two-dimensional interpolation. |
| * <p> |
| * Transitions such as {@link android.transition.ChangeBounds} move Views, typically |
| * in a straight path between the start and end positions. Applications that desire to |
| * have these motions move in a curve can change how Views interpolate in two dimensions |
| * by extending PathMotion and implementing |
| * {@link android.transition.PathMotion#getPath(float, float, float, float)}. |
| * </p> |
| * <p> |
| * When describing in XML, use a nested XML tag for the path motion. It can be one of |
| * the built-in tags <code>arcMotion</code> or <code>patternPathMotion</code> or it can |
| * be a custom PathMotion using <code>pathMotion</code> with the <code>class</code> |
| * attributed with the fully-described class name. For example:</p> |
| * <pre> |
| * {@code |
| * <changeBounds> |
| * <pathMotion class="my.app.transition.MyPathMotion"/> |
| * </changeBounds> |
| * } |
| * </pre> |
| * <p>or</p> |
| * <pre> |
| * {@code |
| * <changeBounds> |
| * <arcMotion android:minimumHorizontalAngle="15" |
| * android:minimumVerticalAngle="0" android:maximumAngle="90"/> |
| * </changeBounds> |
| * } |
| * </pre> |
| * |
| * @param pathMotion Algorithm object to use for determining how to interpolate in two |
| * dimensions. If null, a straight-path algorithm will be used. |
| * @see android.transition.ArcMotion |
| * @see PatternPathMotion |
| * @see android.transition.PathMotion |
| */ |
| public void setPathMotion(PathMotion pathMotion) { |
| if (pathMotion == null) { |
| mPathMotion = STRAIGHT_PATH_MOTION; |
| } else { |
| mPathMotion = pathMotion; |
| } |
| } |
| |
| /** |
| * Returns the algorithm object used to interpolate along two dimensions. This is typically |
| * used to determine the View motion between two points. |
| * |
| * <p> |
| * When describing in XML, use a nested XML tag for the path motion. It can be one of |
| * the built-in tags <code>arcMotion</code> or <code>patternPathMotion</code> or it can |
| * be a custom PathMotion using <code>pathMotion</code> with the <code>class</code> |
| * attributed with the fully-described class name. For example:</p> |
| * <pre> |
| * {@code |
| * <changeBounds> |
| * <pathMotion class="my.app.transition.MyPathMotion"/> |
| * </changeBounds>} |
| * </pre> |
| * <p>or</p> |
| * <pre> |
| * {@code |
| * <changeBounds> |
| * <arcMotion android:minimumHorizontalAngle="15" |
| * android:minimumVerticalAngle="0" |
| * android:maximumAngle="90"/> |
| * </changeBounds>} |
| * </pre> |
| * |
| * @return The algorithm object used to interpolate along two dimensions. |
| * @see android.transition.ArcMotion |
| * @see PatternPathMotion |
| * @see android.transition.PathMotion |
| */ |
| public PathMotion getPathMotion() { |
| return mPathMotion; |
| } |
| |
| /** |
| * Sets the method for determining Animator start delays. |
| * When a Transition affects several Views like {@link android.transition.Explode} or |
| * {@link android.transition.Slide}, there may be a desire to have a "wave-front" effect |
| * such that the Animator start delay depends on position of the View. The |
| * TransitionPropagation specifies how the start delays are calculated. |
| * @param transitionPropagation The class used to determine the start delay of |
| * Animators created by this Transition. A null value |
| * indicates that no delay should be used. |
| */ |
| public void setPropagation(TransitionPropagation transitionPropagation) { |
| mPropagation = transitionPropagation; |
| } |
| |
| /** |
| * Returns the {@link android.transition.TransitionPropagation} used to calculate Animator start |
| * delays. |
| * When a Transition affects several Views like {@link android.transition.Explode} or |
| * {@link android.transition.Slide}, there may be a desire to have a "wave-front" effect |
| * such that the Animator start delay depends on position of the View. The |
| * TransitionPropagation specifies how the start delays are calculated. |
| * @return the {@link android.transition.TransitionPropagation} used to calculate Animator start |
| * delays. This is null by default. |
| */ |
| public TransitionPropagation getPropagation() { |
| return mPropagation; |
| } |
| |
| /** |
| * Captures TransitionPropagation values for the given view and the |
| * hierarchy underneath it. |
| */ |
| void capturePropagationValues(TransitionValues transitionValues) { |
| if (mPropagation != null && !transitionValues.values.isEmpty()) { |
| String[] propertyNames = mPropagation.getPropagationProperties(); |
| if (propertyNames == null) { |
| return; |
| } |
| boolean containsAll = true; |
| for (int i = 0; i < propertyNames.length; i++) { |
| if (!transitionValues.values.containsKey(propertyNames[i])) { |
| containsAll = false; |
| break; |
| } |
| } |
| if (!containsAll) { |
| mPropagation.captureValues(transitionValues); |
| } |
| } |
| } |
| |
| Transition setSceneRoot(ViewGroup sceneRoot) { |
| mSceneRoot = sceneRoot; |
| return this; |
| } |
| |
| void setCanRemoveViews(boolean canRemoveViews) { |
| mCanRemoveViews = canRemoveViews; |
| } |
| |
| public boolean canRemoveViews() { |
| return mCanRemoveViews; |
| } |
| |
| /** |
| * Sets the shared element names -- a mapping from a name at the start state to |
| * a different name at the end state. |
| * @hide |
| */ |
| public void setNameOverrides(ArrayMap<String, String> overrides) { |
| mNameOverrides = overrides; |
| } |
| |
| /** @hide */ |
| public ArrayMap<String, String> getNameOverrides() { |
| return mNameOverrides; |
| } |
| |
| /** @hide */ |
| public void forceVisibility(int visibility, boolean isStartValue) {} |
| |
| @Override |
| public String toString() { |
| return toString(""); |
| } |
| |
| @Override |
| public Transition clone() { |
| Transition clone = null; |
| try { |
| clone = (Transition) super.clone(); |
| clone.mAnimators = new ArrayList<Animator>(); |
| clone.mStartValues = new TransitionValuesMaps(); |
| clone.mEndValues = new TransitionValuesMaps(); |
| clone.mStartValuesList = null; |
| clone.mEndValuesList = null; |
| } catch (CloneNotSupportedException e) {} |
| |
| return clone; |
| } |
| |
| /** |
| * Returns the name of this Transition. This name is used internally to distinguish |
| * between different transitions to determine when interrupting transitions overlap. |
| * For example, a ChangeBounds running on the same target view as another ChangeBounds |
| * should determine whether the old transition is animating to different end values |
| * and should be canceled in favor of the new transition. |
| * |
| * <p>By default, a Transition's name is simply the value of {@link Class#getName()}, |
| * but subclasses are free to override and return something different.</p> |
| * |
| * @return The name of this transition. |
| */ |
| public String getName() { |
| return mName; |
| } |
| |
| String toString(String indent) { |
| String result = indent + getClass().getSimpleName() + "@" + |
| Integer.toHexString(hashCode()) + ": "; |
| if (mDuration != -1) { |
| result += "dur(" + mDuration + ") "; |
| } |
| if (mStartDelay != -1) { |
| result += "dly(" + mStartDelay + ") "; |
| } |
| if (mInterpolator != null) { |
| result += "interp(" + mInterpolator + ") "; |
| } |
| if (mTargetIds.size() > 0 || mTargets.size() > 0) { |
| result += "tgts("; |
| if (mTargetIds.size() > 0) { |
| for (int i = 0; i < mTargetIds.size(); ++i) { |
| if (i > 0) { |
| result += ", "; |
| } |
| result += mTargetIds.get(i); |
| } |
| } |
| if (mTargets.size() > 0) { |
| for (int i = 0; i < mTargets.size(); ++i) { |
| if (i > 0) { |
| result += ", "; |
| } |
| result += mTargets.get(i); |
| } |
| } |
| result += ")"; |
| } |
| return result; |
| } |
| |
| /** |
| * A transition listener receives notifications from a transition. |
| * Notifications indicate transition lifecycle events. |
| */ |
| public static interface TransitionListener { |
| /** |
| * Notification about the start of the transition. |
| * |
| * @param transition The started transition. |
| */ |
| void onTransitionStart(Transition transition); |
| |
| /** |
| * Notification about the end of the transition. Canceled transitions |
| * will always notify listeners of both the cancellation and end |
| * events. That is, {@link #onTransitionEnd(Transition)} is always called, |
| * regardless of whether the transition was canceled or played |
| * through to completion. |
| * |
| * @param transition The transition which reached its end. |
| */ |
| void onTransitionEnd(Transition transition); |
| |
| /** |
| * Notification about the cancellation of the transition. |
| * Note that cancel may be called by a parent {@link TransitionSet} on |
| * a child transition which has not yet started. This allows the child |
| * transition to restore state on target objects which was set at |
| * {@link #createAnimator(android.view.ViewGroup, TransitionValues, TransitionValues) |
| * createAnimator()} time. |
| * |
| * @param transition The transition which was canceled. |
| */ |
| void onTransitionCancel(Transition transition); |
| |
| /** |
| * Notification when a transition is paused. |
| * Note that createAnimator() may be called by a parent {@link TransitionSet} on |
| * a child transition which has not yet started. This allows the child |
| * transition to restore state on target objects which was set at |
| * {@link #createAnimator(android.view.ViewGroup, TransitionValues, TransitionValues) |
| * createAnimator()} time. |
| * |
| * @param transition The transition which was paused. |
| */ |
| void onTransitionPause(Transition transition); |
| |
| /** |
| * Notification when a transition is resumed. |
| * Note that resume() may be called by a parent {@link TransitionSet} on |
| * a child transition which has not yet started. This allows the child |
| * transition to restore state which may have changed in an earlier call |
| * to {@link #onTransitionPause(Transition)}. |
| * |
| * @param transition The transition which was resumed. |
| */ |
| void onTransitionResume(Transition transition); |
| } |
| |
| /** |
| * Utility adapter class to avoid having to override all three methods |
| * whenever someone just wants to listen for a single event. |
| * |
| * @hide |
| * */ |
| public static class TransitionListenerAdapter implements TransitionListener { |
| @Override |
| public void onTransitionStart(Transition transition) { |
| } |
| |
| @Override |
| public void onTransitionEnd(Transition transition) { |
| } |
| |
| @Override |
| public void onTransitionCancel(Transition transition) { |
| } |
| |
| @Override |
| public void onTransitionPause(Transition transition) { |
| } |
| |
| @Override |
| public void onTransitionResume(Transition transition) { |
| } |
| } |
| |
| /** |
| * Holds information about each animator used when a new transition starts |
| * while other transitions are still running to determine whether a running |
| * animation should be canceled or a new animation noop'd. The structure holds |
| * information about the state that an animation is going to, to be compared to |
| * end state of a new animation. |
| * @hide |
| */ |
| public static class AnimationInfo { |
| public View view; |
| String name; |
| TransitionValues values; |
| WindowId windowId; |
| Transition transition; |
| |
| AnimationInfo(View view, String name, Transition transition, |
| WindowId windowId, TransitionValues values) { |
| this.view = view; |
| this.name = name; |
| this.values = values; |
| this.windowId = windowId; |
| this.transition = transition; |
| } |
| } |
| |
| /** |
| * Utility class for managing typed ArrayLists efficiently. In particular, this |
| * can be useful for lists that we don't expect to be used often (eg, the exclude |
| * lists), so we'd like to keep them nulled out by default. This causes the code to |
| * become tedious, with constant null checks, code to allocate when necessary, |
| * and code to null out the reference when the list is empty. This class encapsulates |
| * all of that functionality into simple add()/remove() methods which perform the |
| * necessary checks, allocation/null-out as appropriate, and return the |
| * resulting list. |
| */ |
| private static class ArrayListManager { |
| |
| /** |
| * Add the specified item to the list, returning the resulting list. |
| * The returned list can either the be same list passed in or, if that |
| * list was null, the new list that was created. |
| * |
| * Note that the list holds unique items; if the item already exists in the |
| * list, the list is not modified. |
| */ |
| static <T> ArrayList<T> add(ArrayList<T> list, T item) { |
| if (list == null) { |
| list = new ArrayList<T>(); |
| } |
| if (!list.contains(item)) { |
| list.add(item); |
| } |
| return list; |
| } |
| |
| /** |
| * Remove the specified item from the list, returning the resulting list. |
| * The returned list can either the be same list passed in or, if that |
| * list becomes empty as a result of the remove(), the new list was created. |
| */ |
| static <T> ArrayList<T> remove(ArrayList<T> list, T item) { |
| if (list != null) { |
| list.remove(item); |
| if (list.isEmpty()) { |
| list = null; |
| } |
| } |
| return list; |
| } |
| } |
| |
| /** |
| * Class to get the epicenter of Transition. Use |
| * {@link #setEpicenterCallback(android.transition.Transition.EpicenterCallback)} to |
| * set the callback used to calculate the epicenter of the Transition. Override |
| * {@link #getEpicenter()} to return the rectangular region in screen coordinates of |
| * the epicenter of the transition. |
| * @see #setEpicenterCallback(android.transition.Transition.EpicenterCallback) |
| */ |
| public static abstract class EpicenterCallback { |
| |
| /** |
| * Implementers must override to return the epicenter of the Transition in screen |
| * coordinates. Transitions like {@link android.transition.Explode} depend upon |
| * an epicenter for the Transition. In Explode, Views move toward or away from the |
| * center of the epicenter Rect along the vector between the epicenter and the center |
| * of the View appearing and disappearing. Some Transitions, such as |
| * {@link android.transition.Fade} pay no attention to the epicenter. |
| * |
| * @param transition The transition for which the epicenter applies. |
| * @return The Rect region of the epicenter of <code>transition</code> or null if |
| * there is no epicenter. |
| */ |
| public abstract Rect onGetEpicenter(Transition transition); |
| } |
| } |