private void addScrollListener(
final ViewGroup vg, final boolean setForTop, final boolean setForBottom) {
if ((!setForBottom && mTopOnScrollChangedListener == null
|| (setForBottom && mBottomOnScrollChangedListener == null))) {
ViewTreeObserver.OnScrollChangedListener onScrollChangedListener =
new ViewTreeObserver.OnScrollChangedListener() {
@Override
public void onScrollChanged() {
boolean hasButtons = false;
for (MDButton button : mButtons) {
if (button != null && button.getVisibility() != View.GONE) {
hasButtons = true;
break;
}
}
if (vg instanceof WebView) {
invalidateDividersForWebView((WebView) vg, setForTop, setForBottom, hasButtons);
} else {
invalidateDividersForScrollingView(vg, setForTop, setForBottom, hasButtons);
}
invalidate();
}
};
if (!setForBottom) {
mTopOnScrollChangedListener = onScrollChangedListener;
vg.getViewTreeObserver().addOnScrollChangedListener(mTopOnScrollChangedListener);
} else {
mBottomOnScrollChangedListener = onScrollChangedListener;
vg.getViewTreeObserver().addOnScrollChangedListener(mBottomOnScrollChangedListener);
}
onScrollChangedListener.onScrollChanged();
}
}
private static void sceneChangeRunTransition(ViewGroup sceneRoot, Transition transition) {
if (transition != null && sceneRoot != null) {
MultiListener listener = new MultiListener(transition, sceneRoot);
sceneRoot.addOnAttachStateChangeListener(listener);
sceneRoot.getViewTreeObserver().addOnPreDrawListener(listener);
}
}
public LoadToast(Context context) {
mView = new LoadToastView(context);
mParentView =
(ViewGroup)
((Activity) context).getWindow().getDecorView().findViewById(android.R.id.content);
mParentView.addView(
mView,
new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
ViewHelper.setAlpha(mView, 0);
mParentView.postDelayed(
new Runnable() {
@Override
public void run() {
ViewHelper.setTranslationX(mView, (mParentView.getWidth() - mView.getWidth()) / 2);
ViewHelper.setTranslationY(mView, -mView.getHeight() + mTranslationY);
mInflated = true;
if (!mToastCanceled && mShowCalled) show();
}
},
1);
mParentView
.getViewTreeObserver()
.addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
checkZPosition();
}
});
}
/**
* Update the Start/Stop text. The button is within a view group with a transition that is needed
* to animate the button moving. The transition also animates the the text changing, but that
* animation does not provide a good look and feel. Temporarily disable the view group transition
* while the text is changing and restore it afterwards.
*
* @param parent - View Group holding the start/stop button
* @param textView - The start/stop button
* @param text - Start or Stop id
*/
private void setStartStopText(final ViewGroup parent, TextView textView, int text) {
final LayoutTransition layoutTransition = parent.getLayoutTransition();
// Tap into the parent layout->draw flow just before the draw
ViewTreeObserver viewTreeObserver = parent.getViewTreeObserver();
if (viewTreeObserver != null) {
viewTreeObserver.addOnPreDrawListener(
new ViewTreeObserver.OnPreDrawListener() {
/**
* Re-establish the transition handler Remove this listener
*
* @return true so that onDraw() is called
*/
@Override
public boolean onPreDraw() {
parent.setLayoutTransition(layoutTransition);
ViewTreeObserver viewTreeObserver = parent.getViewTreeObserver();
if (viewTreeObserver != null) {
viewTreeObserver.removeOnPreDrawListener(this);
}
return true;
}
});
}
// Remove the transition while the text is updated
parent.setLayoutTransition(null);
String textStr = getActivity().getResources().getString(text);
textView.setText(textStr);
textView.setContentDescription(textStr);
}
private void fixLayout() {
if (avatarContainer != null) {
avatarContainer
.getViewTreeObserver()
.addOnPreDrawListener(
new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
if (avatarContainer != null) {
avatarContainer.getViewTreeObserver().removeOnPreDrawListener(this);
}
int padding =
(AndroidUtilities.getCurrentActionBarHeight() - AndroidUtilities.dp(48)) / 2;
avatarContainer.setPadding(
avatarContainer.getPaddingLeft(),
padding,
avatarContainer.getPaddingRight(),
padding);
return true;
}
});
}
if (messageContainer != null) {
messageContainer
.getViewTreeObserver()
.addOnPreDrawListener(
new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
messageContainer.getViewTreeObserver().removeOnPreDrawListener(this);
if (!checkTransitionAnimation() && !startedMoving) {
ViewGroup.MarginLayoutParams layoutParams =
(ViewGroup.MarginLayoutParams) messageContainer.getLayoutParams();
layoutParams.topMargin = AndroidUtilities.getCurrentActionBarHeight();
layoutParams.bottomMargin = AndroidUtilities.dp(48);
layoutParams.width = ViewGroup.MarginLayoutParams.MATCH_PARENT;
layoutParams.height = ViewGroup.MarginLayoutParams.MATCH_PARENT;
messageContainer.setLayoutParams(layoutParams);
applyViewsLayoutParams(0);
}
return true;
}
});
}
}
private static void sceneChangeRunTransition(
final ViewGroup sceneRoot, final Transition transition) {
if (transition != null) {
final ViewTreeObserver observer = sceneRoot.getViewTreeObserver();
final ViewTreeObserver.OnPreDrawListener listener =
new ViewTreeObserver.OnPreDrawListener() {
public boolean onPreDraw() {
sceneRoot.getViewTreeObserver().removeOnPreDrawListener(this);
sPendingTransitions.remove(sceneRoot);
// Add to running list, handle end to remove it
final ArrayMap<ViewGroup, ArrayList<Transition>> runningTransitions =
getRunningTransitions();
ArrayList<Transition> currentTransitions = runningTransitions.get(sceneRoot);
ArrayList<Transition> previousRunningTransitions = null;
if (currentTransitions == null) {
currentTransitions = new ArrayList<Transition>();
runningTransitions.put(sceneRoot, currentTransitions);
} else if (currentTransitions.size() > 0) {
previousRunningTransitions = new ArrayList<Transition>(currentTransitions);
}
currentTransitions.add(transition);
transition.addListener(
new Transition.TransitionListenerAdapter() {
@Override
public void onTransitionEnd(Transition transition) {
ArrayList<Transition> currentTransitions = runningTransitions.get(sceneRoot);
currentTransitions.remove(transition);
}
});
transition.captureValues(sceneRoot, false);
if (previousRunningTransitions != null) {
for (Transition runningTransition : previousRunningTransitions) {
runningTransition.resume();
}
}
transition.playTransition(sceneRoot);
return true;
}
};
observer.addOnPreDrawListener(listener);
}
}
public void showLongPressCling(boolean showWelcome) {
ViewGroup root = (ViewGroup) mLauncher.findViewById(R.id.launcher);
View cling = mInflater.inflate(R.layout.longpress_cling, root, false);
cling.setOnLongClickListener(
new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
mLauncher.getWorkspace().enterOverviewMode();
dismissLongPressCling();
return true;
}
});
final ViewGroup content = (ViewGroup) cling.findViewById(R.id.cling_content);
mInflater.inflate(
showWelcome ? R.layout.longpress_cling_welcome_content : R.layout.longpress_cling_content,
content);
content.findViewById(R.id.cling_dismiss_longpress_info).setOnClickListener(this);
if (TAG_CROP_TOP_AND_SIDES.equals(content.getTag())) {
Drawable bg =
new BorderCropDrawable(
mLauncher.getResources().getDrawable(R.drawable.cling_bg), true, true, true, false);
content.setBackground(bg);
}
root.addView(cling);
if (showWelcome) {
// This is the first cling being shown. No need to animate.
return;
}
// Animate
content
.getViewTreeObserver()
.addOnGlobalLayoutListener(
new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
content.getViewTreeObserver().removeOnGlobalLayoutListener(this);
ObjectAnimator anim;
if (TAG_CROP_TOP_AND_SIDES.equals(content.getTag())) {
content.setTranslationY(-content.getMeasuredHeight());
anim = LauncherAnimUtils.ofFloat(content, "translationY", 0);
} else {
content.setScaleX(0);
content.setScaleY(0);
PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 1);
PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 1);
anim = LauncherAnimUtils.ofPropertyValuesHolder(content, scaleX, scaleY);
}
anim.setDuration(SHOW_CLING_DURATION);
anim.setInterpolator(new LogDecelerateInterpolator(100, 0));
anim.start();
}
});
}
