| /* |
| * Copyright (C) 2015 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 com.android.internal.transition; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.AnimatorSet; |
| import android.animation.ObjectAnimator; |
| import android.animation.TimeInterpolator; |
| import android.animation.TypeEvaluator; |
| import android.content.Context; |
| import android.content.res.TypedArray; |
| import android.graphics.Rect; |
| import android.transition.TransitionValues; |
| import android.transition.Visibility; |
| import android.util.AttributeSet; |
| import android.util.Property; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.animation.AnimationUtils; |
| |
| import com.android.internal.R; |
| |
| /** |
| * EpicenterTranslateClipReveal captures the clip bounds and translation values |
| * before and after the scene change and animates between those and the |
| * epicenter bounds during a visibility transition. |
| */ |
| public class EpicenterTranslateClipReveal extends Visibility { |
| private static final String PROPNAME_CLIP = "android:epicenterReveal:clip"; |
| private static final String PROPNAME_BOUNDS = "android:epicenterReveal:bounds"; |
| private static final String PROPNAME_TRANSLATE_X = "android:epicenterReveal:translateX"; |
| private static final String PROPNAME_TRANSLATE_Y = "android:epicenterReveal:translateY"; |
| private static final String PROPNAME_TRANSLATE_Z = "android:epicenterReveal:translateZ"; |
| private static final String PROPNAME_Z = "android:epicenterReveal:z"; |
| |
| private final TimeInterpolator mInterpolatorX; |
| private final TimeInterpolator mInterpolatorY; |
| private final TimeInterpolator mInterpolatorZ; |
| |
| public EpicenterTranslateClipReveal() { |
| mInterpolatorX = null; |
| mInterpolatorY = null; |
| mInterpolatorZ = null; |
| } |
| |
| public EpicenterTranslateClipReveal(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| |
| final TypedArray a = context.obtainStyledAttributes(attrs, |
| R.styleable.EpicenterTranslateClipReveal, 0, 0); |
| |
| final int interpolatorX = a.getResourceId( |
| R.styleable.EpicenterTranslateClipReveal_interpolatorX, 0); |
| if (interpolatorX != 0) { |
| mInterpolatorX = AnimationUtils.loadInterpolator(context, interpolatorX); |
| } else { |
| mInterpolatorX = TransitionConstants.LINEAR_OUT_SLOW_IN; |
| } |
| |
| final int interpolatorY = a.getResourceId( |
| R.styleable.EpicenterTranslateClipReveal_interpolatorY, 0); |
| if (interpolatorY != 0) { |
| mInterpolatorY = AnimationUtils.loadInterpolator(context, interpolatorY); |
| } else { |
| mInterpolatorY = TransitionConstants.FAST_OUT_SLOW_IN; |
| } |
| |
| final int interpolatorZ = a.getResourceId( |
| R.styleable.EpicenterTranslateClipReveal_interpolatorZ, 0); |
| if (interpolatorZ != 0) { |
| mInterpolatorZ = AnimationUtils.loadInterpolator(context, interpolatorZ); |
| } else { |
| mInterpolatorZ = TransitionConstants.FAST_OUT_SLOW_IN; |
| } |
| |
| a.recycle(); |
| } |
| |
| @Override |
| public void captureStartValues(TransitionValues transitionValues) { |
| super.captureStartValues(transitionValues); |
| captureValues(transitionValues); |
| } |
| |
| @Override |
| public void captureEndValues(TransitionValues transitionValues) { |
| super.captureEndValues(transitionValues); |
| captureValues(transitionValues); |
| } |
| |
| private void captureValues(TransitionValues values) { |
| final View view = values.view; |
| if (view.getVisibility() == View.GONE) { |
| return; |
| } |
| |
| final Rect bounds = new Rect(0, 0, view.getWidth(), view.getHeight()); |
| values.values.put(PROPNAME_BOUNDS, bounds); |
| values.values.put(PROPNAME_TRANSLATE_X, view.getTranslationX()); |
| values.values.put(PROPNAME_TRANSLATE_Y, view.getTranslationY()); |
| values.values.put(PROPNAME_TRANSLATE_Z, view.getTranslationZ()); |
| values.values.put(PROPNAME_Z, view.getZ()); |
| |
| final Rect clip = view.getClipBounds(); |
| values.values.put(PROPNAME_CLIP, clip); |
| } |
| |
| @Override |
| public Animator onAppear(ViewGroup sceneRoot, View view, |
| TransitionValues startValues, TransitionValues endValues) { |
| if (endValues == null) { |
| return null; |
| } |
| |
| final Rect endBounds = (Rect) endValues.values.get(PROPNAME_BOUNDS); |
| final Rect startBounds = getEpicenterOrCenter(endBounds); |
| final float startX = startBounds.centerX() - endBounds.centerX(); |
| final float startY = startBounds.centerY() - endBounds.centerY(); |
| final float startZ = 0 - (float) endValues.values.get(PROPNAME_Z); |
| |
| // Translate the view to be centered on the epicenter. |
| view.setTranslationX(startX); |
| view.setTranslationY(startY); |
| view.setTranslationZ(startZ); |
| |
| final float endX = (float) endValues.values.get(PROPNAME_TRANSLATE_X); |
| final float endY = (float) endValues.values.get(PROPNAME_TRANSLATE_Y); |
| final float endZ = (float) endValues.values.get(PROPNAME_TRANSLATE_Z); |
| |
| final Rect endClip = getBestRect(endValues); |
| final Rect startClip = getEpicenterOrCenter(endClip); |
| |
| // Prepare the view. |
| view.setClipBounds(startClip); |
| |
| final State startStateX = new State(startClip.left, startClip.right, startX); |
| final State endStateX = new State(endClip.left, endClip.right, endX); |
| final State startStateY = new State(startClip.top, startClip.bottom, startY); |
| final State endStateY = new State(endClip.top, endClip.bottom, endY); |
| |
| return createRectAnimator(view, startStateX, startStateY, startZ, endStateX, endStateY, |
| endZ, endValues, mInterpolatorX, mInterpolatorY, mInterpolatorZ); |
| } |
| |
| @Override |
| public Animator onDisappear(ViewGroup sceneRoot, View view, |
| TransitionValues startValues, TransitionValues endValues) { |
| if (startValues == null) { |
| return null; |
| } |
| |
| final Rect startBounds = (Rect) endValues.values.get(PROPNAME_BOUNDS); |
| final Rect endBounds = getEpicenterOrCenter(startBounds); |
| final float endX = endBounds.centerX() - startBounds.centerX(); |
| final float endY = endBounds.centerY() - startBounds.centerY(); |
| final float endZ = 0 - (float) startValues.values.get(PROPNAME_Z); |
| |
| final float startX = (float) endValues.values.get(PROPNAME_TRANSLATE_X); |
| final float startY = (float) endValues.values.get(PROPNAME_TRANSLATE_Y); |
| final float startZ = (float) endValues.values.get(PROPNAME_TRANSLATE_Z); |
| |
| final Rect startClip = getBestRect(startValues); |
| final Rect endClip = getEpicenterOrCenter(startClip); |
| |
| // Prepare the view. |
| view.setClipBounds(startClip); |
| |
| final State startStateX = new State(startClip.left, startClip.right, startX); |
| final State endStateX = new State(endClip.left, endClip.right, endX); |
| final State startStateY = new State(startClip.top, startClip.bottom, startY); |
| final State endStateY = new State(endClip.top, endClip.bottom, endY); |
| |
| return createRectAnimator(view, startStateX, startStateY, startZ, endStateX, endStateY, |
| endZ, endValues, mInterpolatorX, mInterpolatorY, mInterpolatorZ); |
| } |
| |
| private Rect getEpicenterOrCenter(Rect bestRect) { |
| final Rect epicenter = getEpicenter(); |
| if (epicenter != null) { |
| return epicenter; |
| } |
| |
| final int centerX = bestRect.centerX(); |
| final int centerY = bestRect.centerY(); |
| return new Rect(centerX, centerY, centerX, centerY); |
| } |
| |
| private Rect getBestRect(TransitionValues values) { |
| final Rect clipRect = (Rect) values.values.get(PROPNAME_CLIP); |
| if (clipRect == null) { |
| return (Rect) values.values.get(PROPNAME_BOUNDS); |
| } |
| return clipRect; |
| } |
| |
| private static Animator createRectAnimator(final View view, State startX, State startY, |
| float startZ, State endX, State endY, float endZ, TransitionValues endValues, |
| TimeInterpolator interpolatorX, TimeInterpolator interpolatorY, |
| TimeInterpolator interpolatorZ) { |
| final StateEvaluator evaluator = new StateEvaluator(); |
| |
| final ObjectAnimator animZ = ObjectAnimator.ofFloat(view, View.TRANSLATION_Z, startZ, endZ); |
| if (interpolatorZ != null) { |
| animZ.setInterpolator(interpolatorZ); |
| } |
| |
| final StateProperty propX = new StateProperty(StateProperty.TARGET_X); |
| final ObjectAnimator animX = ObjectAnimator.ofObject(view, propX, evaluator, startX, endX); |
| if (interpolatorX != null) { |
| animX.setInterpolator(interpolatorX); |
| } |
| |
| final StateProperty propY = new StateProperty(StateProperty.TARGET_Y); |
| final ObjectAnimator animY = ObjectAnimator.ofObject(view, propY, evaluator, startY, endY); |
| if (interpolatorY != null) { |
| animY.setInterpolator(interpolatorY); |
| } |
| |
| final Rect terminalClip = (Rect) endValues.values.get(PROPNAME_CLIP); |
| final AnimatorListenerAdapter animatorListener = new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| view.setClipBounds(terminalClip); |
| } |
| }; |
| |
| final AnimatorSet animSet = new AnimatorSet(); |
| animSet.playTogether(animX, animY, animZ); |
| animSet.addListener(animatorListener); |
| return animSet; |
| } |
| |
| private static class State { |
| int lower; |
| int upper; |
| float trans; |
| |
| public State() {} |
| |
| public State(int lower, int upper, float trans) { |
| this.lower = lower; |
| this.upper = upper; |
| this.trans = trans; |
| } |
| } |
| |
| private static class StateEvaluator implements TypeEvaluator<State> { |
| private final State mTemp = new State(); |
| |
| @Override |
| public State evaluate(float fraction, State startValue, State endValue) { |
| mTemp.upper = startValue.upper + (int) ((endValue.upper - startValue.upper) * fraction); |
| mTemp.lower = startValue.lower + (int) ((endValue.lower - startValue.lower) * fraction); |
| mTemp.trans = startValue.trans + (int) ((endValue.trans - startValue.trans) * fraction); |
| return mTemp; |
| } |
| } |
| |
| private static class StateProperty extends Property<View, State> { |
| public static final char TARGET_X = 'x'; |
| public static final char TARGET_Y = 'y'; |
| |
| private final Rect mTempRect = new Rect(); |
| private final State mTempState = new State(); |
| |
| private final int mTargetDimension; |
| |
| public StateProperty(char targetDimension) { |
| super(State.class, "state_" + targetDimension); |
| |
| mTargetDimension = targetDimension; |
| } |
| |
| @Override |
| public State get(View object) { |
| final Rect tempRect = mTempRect; |
| if (!object.getClipBounds(tempRect)) { |
| tempRect.setEmpty(); |
| } |
| final State tempState = mTempState; |
| if (mTargetDimension == TARGET_X) { |
| tempState.trans = object.getTranslationX(); |
| tempState.lower = tempRect.left + (int) tempState.trans; |
| tempState.upper = tempRect.right + (int) tempState.trans; |
| } else { |
| tempState.trans = object.getTranslationY(); |
| tempState.lower = tempRect.top + (int) tempState.trans; |
| tempState.upper = tempRect.bottom + (int) tempState.trans; |
| } |
| return tempState; |
| } |
| |
| @Override |
| public void set(View object, State value) { |
| final Rect tempRect = mTempRect; |
| if (object.getClipBounds(tempRect)) { |
| if (mTargetDimension == TARGET_X) { |
| tempRect.left = value.lower - (int) value.trans; |
| tempRect.right = value.upper - (int) value.trans; |
| } else { |
| tempRect.top = value.lower - (int) value.trans; |
| tempRect.bottom = value.upper - (int) value.trans; |
| } |
| object.setClipBounds(tempRect); |
| } |
| |
| if (mTargetDimension == TARGET_X) { |
| object.setTranslationX(value.trans); |
| } else { |
| object.setTranslationY(value.trans); |
| } |
| } |
| } |
| } |