private LayoutTransition createLayoutTransitioner() {
LayoutTransition transitioner = new LayoutTransition();
transitioner.setDuration(200);
transitioner.setStartDelay(LayoutTransition.CHANGE_DISAPPEARING, 0);
transitioner.setAnimator(LayoutTransition.DISAPPEARING, null);
return transitioner;
}
/** Show or hide the laps-list */
private void showLaps() {
if (DEBUG)
Log.v(
LOG_TAG, String.format("StopwatchFragment.showLaps: count=%d", mLapsAdapter.getCount()));
boolean lapsVisible = mLapsAdapter.getCount() > 0;
// Layout change animations will start upon the first add/hide view. Temporarily disable
// the layout transition animation for the spacers, make the changes, then re-enable
// the animation for the add/hide laps-list
if (mSpacersUsed) {
int spacersVisibility = lapsVisible ? View.GONE : View.VISIBLE;
ViewGroup rootView = (ViewGroup) getView();
if (rootView != null) {
rootView.setLayoutTransition(null);
if (mStartSpace != null) {
mStartSpace.setVisibility(spacersVisibility);
}
if (mEndSpace != null) {
mEndSpace.setVisibility(spacersVisibility);
}
rootView.setLayoutTransition(mLayoutTransition);
}
}
if (lapsVisible) {
// There are laps - show the laps-list
// No delay for the CircleButtonsLayout changes - start immediately so that the
// circle has shifted before the laps-list starts appearing.
mCircleLayoutTransition.setStartDelay(LayoutTransition.CHANGING, 0);
mLapsList.setVisibility(View.VISIBLE);
} else {
// There are no laps - hide the laps list
// Delay the CircleButtonsLayout animation until after the laps-list disappears
long startDelay =
mLayoutTransition.getStartDelay(LayoutTransition.DISAPPEARING)
+ mLayoutTransition.getDuration(LayoutTransition.DISAPPEARING);
mCircleLayoutTransition.setStartDelay(LayoutTransition.CHANGING, startDelay);
mLapsList.setVisibility(View.GONE);
}
}
// called by onCreate; this is subclassed to overwrite WallpaperCropActivity
protected void init() {
setContentView(R.layout.wallpaper_picker);
mCropView = (CropView) findViewById(R.id.cropView);
mCropView.setVisibility(View.INVISIBLE);
mWallpaperStrip = findViewById(R.id.wallpaper_strip);
mCropView.setTouchCallback(
new CropView.TouchCallback() {
ViewPropertyAnimator mAnim;
@Override
public void onTouchDown() {
if (mAnim != null) {
mAnim.cancel();
}
if (mWallpaperStrip.getAlpha() == 1f) {
mIgnoreNextTap = true;
}
mAnim = mWallpaperStrip.animate();
mAnim
.alpha(0f)
.setDuration(150)
.withEndAction(
new Runnable() {
public void run() {
mWallpaperStrip.setVisibility(View.INVISIBLE);
}
});
mAnim.setInterpolator(new AccelerateInterpolator(0.75f));
mAnim.start();
}
@Override
public void onTouchUp() {
mIgnoreNextTap = false;
}
@Override
public void onTap() {
boolean ignoreTap = mIgnoreNextTap;
mIgnoreNextTap = false;
if (!ignoreTap) {
if (mAnim != null) {
mAnim.cancel();
}
mWallpaperStrip.setVisibility(View.VISIBLE);
mAnim = mWallpaperStrip.animate();
mAnim.alpha(1f).setDuration(150).setInterpolator(new DecelerateInterpolator(0.75f));
mAnim.start();
}
}
});
mThumbnailOnClickListener =
new OnClickListener() {
public void onClick(View v) {
if (mActionMode != null) {
// When CAB is up, clicking toggles the item instead
if (v.isLongClickable()) {
mLongClickListener.onLongClick(v);
}
return;
}
mSetWallpaperButton.setEnabled(true);
WallpaperTileInfo info = (WallpaperTileInfo) v.getTag();
if (info.isSelectable() && v.getVisibility() == View.VISIBLE) {
selectTile(v);
}
info.onClick(WallpaperPickerActivity.this);
}
};
mLongClickListener =
new View.OnLongClickListener() {
// Called when the user long-clicks on someView
public boolean onLongClick(View view) {
CheckableFrameLayout c = (CheckableFrameLayout) view;
c.toggle();
if (mActionMode != null) {
mActionMode.invalidate();
} else {
// Start the CAB using the ActionMode.Callback defined below
mActionMode = startActionMode(mActionModeCallback);
int childCount = mWallpapersView.getChildCount();
for (int i = 0; i < childCount; i++) {
mWallpapersView.getChildAt(i).setSelected(false);
}
}
return true;
}
};
// Populate the built-in wallpapers
ArrayList<ResourceWallpaperInfo> wallpapers = findBundledWallpapers();
mWallpapersView = (LinearLayout) findViewById(R.id.wallpaper_list);
BuiltInWallpapersAdapter ia = new BuiltInWallpapersAdapter(this, wallpapers);
populateWallpapersFromAdapter(mWallpapersView, ia, false);
// Populate the saved wallpapers
mSavedImages = new SavedWallpaperImages(this);
mSavedImages.loadThumbnailsAndImageIdList();
populateWallpapersFromAdapter(mWallpapersView, mSavedImages, true);
// Populate the live wallpapers
final LinearLayout liveWallpapersView = (LinearLayout) findViewById(R.id.live_wallpaper_list);
final LiveWallpaperListAdapter a = new LiveWallpaperListAdapter(this);
a.registerDataSetObserver(
new DataSetObserver() {
public void onChanged() {
liveWallpapersView.removeAllViews();
populateWallpapersFromAdapter(liveWallpapersView, a, false);
initializeScrollForRtl();
updateTileIndices();
}
});
// Populate the third-party wallpaper pickers
final LinearLayout thirdPartyWallpapersView =
(LinearLayout) findViewById(R.id.third_party_wallpaper_list);
final ThirdPartyWallpaperPickerListAdapter ta = new ThirdPartyWallpaperPickerListAdapter(this);
populateWallpapersFromAdapter(thirdPartyWallpapersView, ta, false);
// Add a tile for the Gallery
LinearLayout masterWallpaperList = (LinearLayout) findViewById(R.id.master_wallpaper_list);
FrameLayout pickImageTile =
(FrameLayout)
getLayoutInflater()
.inflate(R.layout.wallpaper_picker_image_picker_item, masterWallpaperList, false);
setWallpaperItemPaddingToZero(pickImageTile);
masterWallpaperList.addView(pickImageTile, 0);
// Make its background the last photo taken on external storage
Bitmap lastPhoto = getThumbnailOfLastPhoto();
if (lastPhoto != null) {
ImageView galleryThumbnailBg = (ImageView) pickImageTile.findViewById(R.id.wallpaper_image);
galleryThumbnailBg.setImageBitmap(getThumbnailOfLastPhoto());
int colorOverlay = getResources().getColor(R.color.wallpaper_picker_translucent_gray);
galleryThumbnailBg.setColorFilter(colorOverlay, PorterDuff.Mode.SRC_ATOP);
}
PickImageInfo pickImageInfo = new PickImageInfo();
pickImageTile.setTag(pickImageInfo);
pickImageInfo.setView(pickImageTile);
pickImageTile.setOnClickListener(mThumbnailOnClickListener);
// Add a tile for the default wallpaper
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
DefaultWallpaperInfo defaultWallpaperInfo = getDefaultWallpaper();
if (defaultWallpaperInfo != null) {
FrameLayout defaultWallpaperTile =
(FrameLayout)
createImageTileView(
getLayoutInflater(), 0, null, mWallpapersView, defaultWallpaperInfo.mThumb);
setWallpaperItemPaddingToZero(defaultWallpaperTile);
defaultWallpaperTile.setTag(defaultWallpaperInfo);
mWallpapersView.addView(defaultWallpaperTile, 0);
defaultWallpaperTile.setOnClickListener(mThumbnailOnClickListener);
defaultWallpaperInfo.setView(defaultWallpaperTile);
}
}
// Select the first item; wait for a layout pass so that we initialize the dimensions of
// cropView or the defaultWallpaperView first
mCropView.addOnLayoutChangeListener(
new OnLayoutChangeListener() {
@Override
public void onLayoutChange(
View v,
int left,
int top,
int right,
int bottom,
int oldLeft,
int oldTop,
int oldRight,
int oldBottom) {
if ((right - left) > 0 && (bottom - top) > 0) {
if (mSelectedIndex >= 0 && mSelectedIndex < mWallpapersView.getChildCount()) {
mThumbnailOnClickListener.onClick(mWallpapersView.getChildAt(mSelectedIndex));
setSystemWallpaperVisiblity(false);
}
v.removeOnLayoutChangeListener(this);
}
}
});
updateTileIndices();
// Update the scroll for RTL
initializeScrollForRtl();
// Create smooth layout transitions for when items are deleted
final LayoutTransition transitioner = new LayoutTransition();
transitioner.setDuration(200);
transitioner.setStartDelay(LayoutTransition.CHANGE_DISAPPEARING, 0);
transitioner.setAnimator(LayoutTransition.DISAPPEARING, null);
mWallpapersView.setLayoutTransition(transitioner);
// Action bar
// Show the custom action bar view
final ActionBar actionBar = getActionBar();
actionBar.setCustomView(R.layout.actionbar_set_wallpaper);
actionBar
.getCustomView()
.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mSelectedTile != null) {
WallpaperTileInfo info = (WallpaperTileInfo) mSelectedTile.getTag();
info.onSave(WallpaperPickerActivity.this);
} else {
// no tile was selected, so we just finish the activity and go back
setResult(Activity.RESULT_OK);
finish();
}
}
});
mSetWallpaperButton = findViewById(R.id.set_wallpaper_button);
// CAB for deleting items
mActionModeCallback =
new ActionMode.Callback() {
// Called when the action mode is created; startActionMode() was called
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
// Inflate a menu resource providing context menu items
MenuInflater inflater = mode.getMenuInflater();
inflater.inflate(R.menu.cab_delete_wallpapers, menu);
return true;
}
private int numCheckedItems() {
int childCount = mWallpapersView.getChildCount();
int numCheckedItems = 0;
for (int i = 0; i < childCount; i++) {
CheckableFrameLayout c = (CheckableFrameLayout) mWallpapersView.getChildAt(i);
if (c.isChecked()) {
numCheckedItems++;
}
}
return numCheckedItems;
}
// Called each time the action mode is shown. Always called after onCreateActionMode,
// but may be called multiple times if the mode is invalidated.
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
int numCheckedItems = numCheckedItems();
if (numCheckedItems == 0) {
mode.finish();
return true;
} else {
mode.setTitle(
getResources()
.getQuantityString(
R.plurals.number_of_items_selected, numCheckedItems, numCheckedItems));
return true;
}
}
// Called when the user selects a contextual menu item
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
int itemId = item.getItemId();
if (itemId == R.id.menu_delete) {
int childCount = mWallpapersView.getChildCount();
ArrayList<View> viewsToRemove = new ArrayList<View>();
boolean selectedTileRemoved = false;
for (int i = 0; i < childCount; i++) {
CheckableFrameLayout c = (CheckableFrameLayout) mWallpapersView.getChildAt(i);
if (c.isChecked()) {
WallpaperTileInfo info = (WallpaperTileInfo) c.getTag();
info.onDelete(WallpaperPickerActivity.this);
viewsToRemove.add(c);
if (i == mSelectedIndex) {
selectedTileRemoved = true;
}
}
}
for (View v : viewsToRemove) {
mWallpapersView.removeView(v);
}
if (selectedTileRemoved) {
mSelectedIndex = -1;
mSelectedTile = null;
setSystemWallpaperVisiblity(true);
}
updateTileIndices();
mode.finish(); // Action picked, so close the CAB
return true;
} else {
return false;
}
}
// Called when the user exits the action mode
@Override
public void onDestroyActionMode(ActionMode mode) {
int childCount = mWallpapersView.getChildCount();
for (int i = 0; i < childCount; i++) {
CheckableFrameLayout c = (CheckableFrameLayout) mWallpapersView.getChildAt(i);
c.setChecked(false);
}
if (mSelectedTile != null) {
mSelectedTile.setSelected(true);
}
mActionMode = null;
}
};
}
private void createCustomAnimations(LayoutTransition transitioner) {
transitioner.setDuration(200);
transitioner.setStartDelay(LayoutTransition.CHANGE_DISAPPEARING, 0);
transitioner.setAnimator(LayoutTransition.DISAPPEARING, null);
}