Examples with ViewTreeObserver android.view.ViewTreeObserver used on opensource projects

Example 21 with ViewTreeObserver

use of android.view.ViewTreeObserver in project platform_frameworks_base by android.

the class ActivityChooserView method dismissPopup.

/**
     * Dismisses the popup window with activities.
     *
     * @return True if dismissed, false if already dismissed.
     */
public boolean dismissPopup() {
    if (isShowingPopup()) {
        getListPopupWindow().dismiss();
        ViewTreeObserver viewTreeObserver = getViewTreeObserver();
        if (viewTreeObserver.isAlive()) {
            viewTreeObserver.removeOnGlobalLayoutListener(mOnGlobalLayoutListener);
        }
    }
    return true;
}

Example 22 with ViewTreeObserver

use of android.view.ViewTreeObserver in project platform_frameworks_base by android.

the class PopupWindow method detachFromAnchor.

private void detachFromAnchor() {
    final View anchor = mAnchor != null ? mAnchor.get() : null;
    if (anchor != null) {
        final ViewTreeObserver vto = anchor.getViewTreeObserver();
        vto.removeOnScrollChangedListener(mOnScrollChangedListener);
    }
    final View anchorRoot = mAnchorRoot != null ? mAnchorRoot.get() : null;
    if (anchorRoot != null) {
        anchorRoot.removeOnAttachStateChangeListener(mOnAnchorRootDetachedListener);
    }
    mAnchor = null;
    mAnchorRoot = null;
    mIsAnchorRootAttached = false;
}

Example 23 with ViewTreeObserver

use of android.view.ViewTreeObserver in project JamsMusicPlayer by psaravan.

the class DeferredRequestCreator method cancel.

void cancel() {
    callback = null;
    ImageView target = this.target.get();
    if (target == null) {
        return;
    }
    ViewTreeObserver vto = target.getViewTreeObserver();
    if (!vto.isAlive()) {
        return;
    }
    vto.removeOnPreDrawListener(this);
}

Example 24 with ViewTreeObserver

use of android.view.ViewTreeObserver in project weiciyuan by qii.

the class PhotoViewAttacher method cleanup.

/**
     * Clean-up the resources attached to this object. This needs to be called when the ImageView is
     * no longer used. A good example is from {@link android.view.View#onDetachedFromWindow()} or
     * from {@link android.app.Activity#onDestroy()}. This is automatically called if you are using
     * {@link uk.co.senab.photoview.PhotoView}.
     */
@SuppressWarnings("deprecation")
public final void cleanup() {
    if (null == mImageView) {
        // cleanup already done
        return;
    }
    final ImageView imageView = mImageView.get();
    if (null != imageView) {
        // Remove this as a global layout listener
        ViewTreeObserver observer = imageView.getViewTreeObserver();
        if (null != observer && observer.isAlive()) {
            observer.removeGlobalOnLayoutListener(this);
        }
        // Remove the ImageView's reference to this
        imageView.setOnTouchListener(null);
        // make sure a pending fling runnable won't be run
        cancelFling();
    }
    if (null != mGestureDetector) {
        mGestureDetector.setOnDoubleTapListener(null);
    }
    // Clear listeners too
    mMatrixChangeListener = null;
    mPhotoTapListener = null;
    mViewTapListener = null;
    // Finally, clear ImageView
    mImageView = null;
}

Example 25 with ViewTreeObserver

use of android.view.ViewTreeObserver in project material by rey5137.

the class Spinner method onRestoreInstanceState.

@Override
public void onRestoreInstanceState(Parcelable state) {
    SavedState ss = (SavedState) state;
    super.onRestoreInstanceState(ss.getSuperState());
    setSelection(ss.position);
    if (ss.showDropdown) {
        ViewTreeObserver vto = getViewTreeObserver();
        if (vto != null) {
            final ViewTreeObserver.OnGlobalLayoutListener listener = new ViewTreeObserver.OnGlobalLayoutListener() {

                @Override
                public void onGlobalLayout() {
                    showPopup();
                    final ViewTreeObserver vto = getViewTreeObserver();
                    if (vto != null)
                        vto.removeGlobalOnLayoutListener(this);
                }
            };
            vto.addOnGlobalLayoutListener(listener);
        }
    }
}