| /* |
| * Copyright (C) 2011 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.systemui.recent; |
| |
| import java.util.ArrayList; |
| |
| import android.animation.Animator; |
| import android.animation.LayoutTransition; |
| import android.app.ActivityManager; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.res.Configuration; |
| import android.graphics.Bitmap; |
| import android.graphics.Matrix; |
| import android.graphics.Shader.TileMode; |
| import android.graphics.drawable.BitmapDrawable; |
| import android.net.Uri; |
| import android.provider.Settings; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.MenuItem; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.ViewConfiguration; |
| import android.view.ViewGroup; |
| import android.view.accessibility.AccessibilityEvent; |
| import android.view.animation.AnimationUtils; |
| import android.widget.AdapterView; |
| import android.widget.BaseAdapter; |
| import android.widget.HorizontalScrollView; |
| import android.widget.ImageView; |
| import android.widget.PopupMenu; |
| import android.widget.RelativeLayout; |
| import android.widget.ScrollView; |
| import android.widget.TextView; |
| import android.widget.AdapterView.OnItemClickListener; |
| import android.widget.ImageView.ScaleType; |
| |
| import com.android.systemui.R; |
| import com.android.systemui.statusbar.StatusBar; |
| import com.android.systemui.statusbar.phone.PhoneStatusBar; |
| import com.android.systemui.statusbar.tablet.StatusBarPanel; |
| import com.android.systemui.statusbar.tablet.TabletStatusBar; |
| |
| public class RecentsPanelView extends RelativeLayout implements OnItemClickListener, RecentsCallback, |
| StatusBarPanel, Animator.AnimatorListener, View.OnTouchListener { |
| static final String TAG = "RecentsPanelView"; |
| static final boolean DEBUG = TabletStatusBar.DEBUG || PhoneStatusBar.DEBUG || false; |
| private Context mContext; |
| private StatusBar mBar; |
| private View mRecentsScrim; |
| private View mRecentsGlowView; |
| private View mRecentsNoApps; |
| private ViewGroup mRecentsContainer; |
| |
| private boolean mShowing; |
| private Choreographer mChoreo; |
| private View mRecentsDismissButton; |
| |
| private RecentTasksLoader mRecentTasksLoader; |
| private ArrayList<TaskDescription> mRecentTaskDescriptions; |
| private boolean mRecentTasksDirty = true; |
| private TaskDescriptionAdapter mListAdapter; |
| private int mThumbnailWidth; |
| |
| public void setRecentTasksLoader(RecentTasksLoader loader) { |
| mRecentTasksLoader = loader; |
| } |
| |
| private final class OnLongClickDelegate implements View.OnLongClickListener { |
| View mOtherView; |
| OnLongClickDelegate(View other) { |
| mOtherView = other; |
| } |
| public boolean onLongClick(View v) { |
| return mOtherView.performLongClick(); |
| } |
| } |
| |
| /* package */ final static class ViewHolder { |
| View thumbnailView; |
| ImageView thumbnailViewImage; |
| Bitmap thumbnailViewImageBitmap; |
| ImageView iconView; |
| TextView labelView; |
| TextView descriptionView; |
| TaskDescription taskDescription; |
| } |
| |
| /* package */ final class TaskDescriptionAdapter extends BaseAdapter { |
| private LayoutInflater mInflater; |
| |
| public TaskDescriptionAdapter(Context context) { |
| mInflater = LayoutInflater.from(context); |
| } |
| |
| public int getCount() { |
| return mRecentTaskDescriptions != null ? mRecentTaskDescriptions.size() : 0; |
| } |
| |
| public Object getItem(int position) { |
| return position; // we only need the index |
| } |
| |
| public long getItemId(int position) { |
| return position; // we just need something unique for this position |
| } |
| |
| public View getView(int position, View convertView, ViewGroup parent) { |
| ViewHolder holder; |
| if (convertView == null) { |
| convertView = mInflater.inflate(R.layout.status_bar_recent_item, parent, false); |
| holder = new ViewHolder(); |
| holder.thumbnailView = convertView.findViewById(R.id.app_thumbnail); |
| holder.thumbnailViewImage = (ImageView) convertView.findViewById( |
| R.id.app_thumbnail_image); |
| // If we set the default thumbnail now, we avoid an onLayout when we update |
| // the thumbnail later (if they both have the same dimensions) |
| updateThumbnail(holder, mRecentTasksLoader.getDefaultThumbnail(), false, false); |
| |
| holder.iconView = (ImageView) convertView.findViewById(R.id.app_icon); |
| holder.labelView = (TextView) convertView.findViewById(R.id.app_label); |
| holder.descriptionView = (TextView) convertView.findViewById(R.id.app_description); |
| |
| convertView.setTag(holder); |
| } else { |
| holder = (ViewHolder) convertView.getTag(); |
| } |
| |
| // index is reverse since most recent appears at the bottom... |
| final int index = mRecentTaskDescriptions.size() - position - 1; |
| |
| final TaskDescription td = mRecentTaskDescriptions.get(index); |
| holder.iconView.setImageDrawable(td.getIcon()); |
| holder.labelView.setText(td.getLabel()); |
| holder.thumbnailView.setContentDescription(td.getLabel()); |
| updateThumbnail(holder, td.getThumbnail(), true, false); |
| |
| holder.thumbnailView.setTag(td); |
| holder.thumbnailView.setOnLongClickListener(new OnLongClickDelegate(convertView)); |
| holder.taskDescription = td; |
| |
| return convertView; |
| } |
| } |
| |
| @Override |
| public boolean onKeyUp(int keyCode, KeyEvent event) { |
| if (keyCode == KeyEvent.KEYCODE_BACK && !event.isCanceled()) { |
| show(false, true); |
| return true; |
| } |
| return super.onKeyUp(keyCode, event); |
| } |
| |
| public boolean isInContentArea(int x, int y) { |
| // use mRecentsContainer's exact bounds to determine horizontal position |
| final int l = mRecentsContainer.getLeft(); |
| final int r = mRecentsContainer.getRight(); |
| // use surrounding mRecentsGlowView's position in parent determine vertical bounds |
| final int t = mRecentsGlowView.getTop(); |
| final int b = mRecentsGlowView.getBottom(); |
| return x >= l && x < r && y >= t && y < b; |
| } |
| |
| public void show(boolean show, boolean animate) { |
| show(show, animate, null); |
| } |
| |
| public void show(boolean show, boolean animate, |
| ArrayList<TaskDescription> recentTaskDescriptions) { |
| if (show) { |
| // Need to update list of recent apps before we set visibility so this view's |
| // content description is updated before it gets focus for TalkBack mode |
| refreshRecentTasksList(recentTaskDescriptions); |
| |
| // if there are no apps, either bring up a "No recent apps" message, or just |
| // quit early |
| boolean noApps = (mRecentTaskDescriptions.size() == 0); |
| if (mRecentsNoApps != null) { // doesn't exist on large devices |
| mRecentsNoApps.setVisibility(noApps ? View.VISIBLE : View.INVISIBLE); |
| } else { |
| if (noApps) { |
| if (DEBUG) Log.v(TAG, "Nothing to show"); |
| return; |
| } |
| } |
| } else { |
| mRecentTasksLoader.cancelLoadingThumbnails(); |
| mRecentTasksDirty = true; |
| } |
| if (animate) { |
| if (mShowing != show) { |
| mShowing = show; |
| if (show) { |
| setVisibility(View.VISIBLE); |
| } |
| mChoreo.startAnimation(show); |
| } |
| } else { |
| mShowing = show; |
| setVisibility(show ? View.VISIBLE : View.GONE); |
| mChoreo.jumpTo(show); |
| onAnimationEnd(null); |
| } |
| if (show) { |
| setFocusable(true); |
| setFocusableInTouchMode(true); |
| requestFocus(); |
| } |
| } |
| |
| public void dismiss() { |
| hide(true); |
| } |
| |
| public void hide(boolean animate) { |
| if (!animate) { |
| setVisibility(View.GONE); |
| } |
| if (mBar != null) { |
| mBar.animateCollapse(); |
| } |
| } |
| |
| public void handleShowBackground(boolean show) { |
| if (show) { |
| mRecentsScrim.setBackgroundResource(R.drawable.status_bar_recents_background_solid); |
| } else { |
| mRecentsScrim.setBackgroundDrawable(null); |
| } |
| } |
| |
| public boolean isRecentsVisible() { |
| return getVisibility() == VISIBLE; |
| } |
| |
| public void onAnimationCancel(Animator animation) { |
| } |
| |
| public void onAnimationEnd(Animator animation) { |
| if (mShowing) { |
| final LayoutTransition transitioner = new LayoutTransition(); |
| ((ViewGroup)mRecentsContainer).setLayoutTransition(transitioner); |
| createCustomAnimations(transitioner); |
| } else { |
| ((ViewGroup)mRecentsContainer).setLayoutTransition(null); |
| clearRecentTasksList(); |
| } |
| } |
| |
| public void onAnimationRepeat(Animator animation) { |
| } |
| |
| public void onAnimationStart(Animator animation) { |
| } |
| |
| |
| /** |
| * We need to be aligned at the bottom. LinearLayout can't do this, so instead, |
| * let LinearLayout do all the hard work, and then shift everything down to the bottom. |
| */ |
| @Override |
| protected void onLayout(boolean changed, int l, int t, int r, int b) { |
| super.onLayout(changed, l, t, r, b); |
| mChoreo.setPanelHeight(mRecentsContainer.getHeight()); |
| } |
| |
| @Override |
| public boolean dispatchHoverEvent(MotionEvent event) { |
| // Ignore hover events outside of this panel bounds since such events |
| // generate spurious accessibility events with the panel content when |
| // tapping outside of it, thus confusing the user. |
| final int x = (int) event.getX(); |
| final int y = (int) event.getY(); |
| if (x >= 0 && x < getWidth() && y >= 0 && y < getHeight()) { |
| return super.dispatchHoverEvent(event); |
| } |
| return true; |
| } |
| |
| /** |
| * Whether the panel is showing, or, if it's animating, whether it will be |
| * when the animation is done. |
| */ |
| public boolean isShowing() { |
| return mShowing; |
| } |
| |
| public void setBar(StatusBar bar) { |
| mBar = bar; |
| } |
| |
| public RecentsPanelView(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public RecentsPanelView(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| mContext = context; |
| updateValuesFromResources(); |
| } |
| |
| public void updateValuesFromResources() { |
| mThumbnailWidth = |
| (int) mContext.getResources().getDimension(R.dimen.status_bar_recents_thumbnail_width); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| mRecentsContainer = (ViewGroup) findViewById(R.id.recents_container); |
| mListAdapter = new TaskDescriptionAdapter(mContext); |
| if (mRecentsContainer instanceof RecentsHorizontalScrollView){ |
| RecentsHorizontalScrollView scrollView |
| = (RecentsHorizontalScrollView) mRecentsContainer; |
| scrollView.setAdapter(mListAdapter); |
| scrollView.setCallback(this); |
| } else if (mRecentsContainer instanceof RecentsVerticalScrollView){ |
| RecentsVerticalScrollView scrollView |
| = (RecentsVerticalScrollView) mRecentsContainer; |
| scrollView.setAdapter(mListAdapter); |
| scrollView.setCallback(this); |
| } |
| else { |
| throw new IllegalArgumentException("missing Recents[Horizontal]ScrollView"); |
| } |
| |
| |
| mRecentsGlowView = findViewById(R.id.recents_glow); |
| mRecentsScrim = findViewById(R.id.recents_bg_protect); |
| mRecentsNoApps = findViewById(R.id.recents_no_apps); |
| mChoreo = new Choreographer(this, mRecentsScrim, mRecentsGlowView, mRecentsNoApps, this); |
| mRecentsDismissButton = findViewById(R.id.recents_dismiss_button); |
| if (mRecentsDismissButton != null) { |
| mRecentsDismissButton.setOnClickListener(new OnClickListener() { |
| public void onClick(View v) { |
| hide(true); |
| } |
| }); |
| } |
| |
| // In order to save space, we make the background texture repeat in the Y direction |
| if (mRecentsScrim != null && mRecentsScrim.getBackground() instanceof BitmapDrawable) { |
| ((BitmapDrawable) mRecentsScrim.getBackground()).setTileModeY(TileMode.REPEAT); |
| } |
| } |
| |
| private void createCustomAnimations(LayoutTransition transitioner) { |
| transitioner.setDuration(200); |
| transitioner.setStartDelay(LayoutTransition.CHANGE_DISAPPEARING, 0); |
| transitioner.setAnimator(LayoutTransition.DISAPPEARING, null); |
| } |
| |
| @Override |
| protected void onVisibilityChanged(View changedView, int visibility) { |
| super.onVisibilityChanged(changedView, visibility); |
| if (DEBUG) Log.v(TAG, "onVisibilityChanged(" + changedView + ", " + visibility + ")"); |
| |
| if (mRecentsContainer instanceof RecentsHorizontalScrollView) { |
| ((RecentsHorizontalScrollView) mRecentsContainer).onRecentsVisibilityChanged(); |
| } else if (mRecentsContainer instanceof RecentsVerticalScrollView) { |
| ((RecentsVerticalScrollView) mRecentsContainer).onRecentsVisibilityChanged(); |
| } else { |
| throw new IllegalArgumentException("missing Recents[Horizontal]ScrollView"); |
| } |
| } |
| |
| private void updateThumbnail(ViewHolder h, Bitmap thumbnail, boolean show, boolean anim) { |
| if (thumbnail != null) { |
| // Should remove the default image in the frame |
| // that this now covers, to improve scrolling speed. |
| // That can't be done until the anim is complete though. |
| h.thumbnailViewImage.setImageBitmap(thumbnail); |
| |
| // scale the image to fill the full width of the ImageView. do this only if |
| // we haven't set a bitmap before, or if the bitmap size has changed |
| if (h.thumbnailViewImageBitmap == null || |
| h.thumbnailViewImageBitmap.getWidth() != thumbnail.getWidth() || |
| h.thumbnailViewImageBitmap.getHeight() != thumbnail.getHeight()) { |
| Matrix scaleMatrix = new Matrix(); |
| float scale = mThumbnailWidth / (float) thumbnail.getWidth(); |
| scaleMatrix.setScale(scale, scale); |
| h.thumbnailViewImage.setScaleType(ScaleType.MATRIX); |
| h.thumbnailViewImage.setImageMatrix(scaleMatrix); |
| } |
| if (show && h.thumbnailView.getVisibility() != View.VISIBLE) { |
| if (anim) { |
| h.thumbnailView.setAnimation( |
| AnimationUtils.loadAnimation(mContext, R.anim.recent_appear)); |
| } |
| h.thumbnailView.setVisibility(View.VISIBLE); |
| } |
| h.thumbnailViewImageBitmap = thumbnail; |
| } |
| } |
| |
| void onTaskThumbnailLoaded(TaskDescription ad) { |
| synchronized (ad) { |
| if (mRecentsContainer != null) { |
| ViewGroup container = mRecentsContainer; |
| if (container instanceof HorizontalScrollView |
| || container instanceof ScrollView) { |
| container = (ViewGroup)container.findViewById( |
| R.id.recents_linear_layout); |
| } |
| // Look for a view showing this thumbnail, to update. |
| for (int i=0; i<container.getChildCount(); i++) { |
| View v = container.getChildAt(i); |
| if (v.getTag() instanceof ViewHolder) { |
| ViewHolder h = (ViewHolder)v.getTag(); |
| if (h.taskDescription == ad) { |
| // only fade in the thumbnail if recents is already visible-- we |
| // show it immediately otherwise |
| boolean animateShow = mShowing && |
| mRecentsGlowView.getAlpha() > ViewConfiguration.ALPHA_THRESHOLD; |
| updateThumbnail(h, ad.getThumbnail(), true, animateShow); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| // additional optimization when we have sofware system buttons - start loading the recent |
| // tasks on touch down |
| @Override |
| public boolean onTouch(View v, MotionEvent ev) { |
| if (!mShowing) { |
| int action = ev.getAction() & MotionEvent.ACTION_MASK; |
| if (action == MotionEvent.ACTION_DOWN) { |
| // If we set our visibility to INVISIBLE here, we avoid an extra call to onLayout |
| // later when we become visible |
| setVisibility(INVISIBLE); |
| refreshRecentTasksList(); |
| } else if (action == MotionEvent.ACTION_CANCEL) { |
| setVisibility(GONE); |
| clearRecentTasksList(); |
| } else if (action == MotionEvent.ACTION_UP) { |
| if (!v.isPressed()) { |
| setVisibility(GONE); |
| clearRecentTasksList(); |
| } |
| } |
| } |
| return false; |
| } |
| |
| public void clearRecentTasksList() { |
| // Clear memory used by screenshots |
| if (mRecentTaskDescriptions != null) { |
| mRecentTasksLoader.cancelLoadingThumbnails(); |
| mRecentTaskDescriptions.clear(); |
| mListAdapter.notifyDataSetInvalidated(); |
| mRecentTasksDirty = true; |
| } |
| } |
| |
| public void refreshRecentTasksList() { |
| refreshRecentTasksList(null); |
| } |
| |
| private void refreshRecentTasksList(ArrayList<TaskDescription> recentTasksList) { |
| if (mRecentTasksDirty) { |
| if (recentTasksList != null) { |
| mRecentTaskDescriptions = recentTasksList; |
| } else { |
| mRecentTaskDescriptions = mRecentTasksLoader.getRecentTasks(); |
| } |
| mListAdapter.notifyDataSetInvalidated(); |
| updateUiElements(getResources().getConfiguration()); |
| mRecentTasksDirty = false; |
| } |
| } |
| |
| public ArrayList<TaskDescription> getRecentTasksList() { |
| return mRecentTaskDescriptions; |
| } |
| |
| private void updateUiElements(Configuration config) { |
| final int items = mRecentTaskDescriptions.size(); |
| |
| mRecentsContainer.setVisibility(items > 0 ? View.VISIBLE : View.GONE); |
| mRecentsGlowView.setVisibility(items > 0 ? View.VISIBLE : View.GONE); |
| |
| // Set description for accessibility |
| int numRecentApps = mRecentTaskDescriptions.size(); |
| String recentAppsAccessibilityDescription; |
| if (numRecentApps == 0) { |
| recentAppsAccessibilityDescription = |
| getResources().getString(R.string.status_bar_no_recent_apps); |
| } else { |
| recentAppsAccessibilityDescription = getResources().getQuantityString( |
| R.plurals.status_bar_accessibility_recent_apps, numRecentApps, numRecentApps); |
| } |
| setContentDescription(recentAppsAccessibilityDescription); |
| } |
| |
| public void handleOnClick(View view) { |
| TaskDescription ad = ((ViewHolder) view.getTag()).taskDescription; |
| final Context context = view.getContext(); |
| final ActivityManager am = (ActivityManager) |
| context.getSystemService(Context.ACTIVITY_SERVICE); |
| if (ad.taskId >= 0) { |
| // This is an active task; it should just go to the foreground. |
| am.moveTaskToFront(ad.taskId, ActivityManager.MOVE_TASK_WITH_HOME); |
| } else { |
| Intent intent = ad.intent; |
| intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY |
| | Intent.FLAG_ACTIVITY_TASK_ON_HOME |
| | Intent.FLAG_ACTIVITY_NEW_TASK); |
| if (DEBUG) Log.v(TAG, "Starting activity " + intent); |
| context.startActivity(intent); |
| } |
| hide(true); |
| } |
| |
| public void onItemClick(AdapterView<?> parent, View view, int position, long id) { |
| handleOnClick(view); |
| } |
| |
| public void handleSwipe(View view) { |
| TaskDescription ad = ((ViewHolder) view.getTag()).taskDescription; |
| if (DEBUG) Log.v(TAG, "Jettison " + ad.getLabel()); |
| mRecentTaskDescriptions.remove(ad); |
| |
| // Handled by widget containers to enable LayoutTransitions properly |
| // mListAdapter.notifyDataSetChanged(); |
| |
| if (mRecentTaskDescriptions.size() == 0) { |
| hide(false); |
| } |
| |
| // Currently, either direction means the same thing, so ignore direction and remove |
| // the task. |
| final ActivityManager am = (ActivityManager) |
| mContext.getSystemService(Context.ACTIVITY_SERVICE); |
| am.removeTask(ad.persistentTaskId, ActivityManager.REMOVE_TASK_KILL_PROCESS); |
| |
| // Accessibility feedback |
| setContentDescription( |
| mContext.getString(R.string.accessibility_recents_item_dismissed, ad.getLabel())); |
| sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED); |
| setContentDescription(null); |
| } |
| |
| private void startApplicationDetailsActivity(String packageName) { |
| Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, |
| Uri.fromParts("package", packageName, null)); |
| intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| getContext().startActivity(intent); |
| } |
| |
| public void handleLongPress( |
| final View selectedView, final View anchorView, final View thumbnailView) { |
| thumbnailView.setSelected(true); |
| PopupMenu popup = new PopupMenu(mContext, anchorView == null ? selectedView : anchorView); |
| popup.getMenuInflater().inflate(R.menu.recent_popup_menu, popup.getMenu()); |
| popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { |
| public boolean onMenuItemClick(MenuItem item) { |
| if (item.getItemId() == R.id.recent_remove_item) { |
| mRecentsContainer.removeViewInLayout(selectedView); |
| } else if (item.getItemId() == R.id.recent_inspect_item) { |
| ViewHolder viewHolder = (ViewHolder) selectedView.getTag(); |
| if (viewHolder != null) { |
| final TaskDescription ad = viewHolder.taskDescription; |
| startApplicationDetailsActivity(ad.packageName); |
| mBar.animateCollapse(); |
| } else { |
| throw new IllegalStateException("Oops, no tag on view " + selectedView); |
| } |
| } else { |
| return false; |
| } |
| return true; |
| } |
| }); |
| popup.setOnDismissListener(new PopupMenu.OnDismissListener() { |
| public void onDismiss(PopupMenu menu) { |
| thumbnailView.setSelected(false); |
| } |
| }); |
| popup.show(); |
| } |
| } |