// http://code.google.com/p/android/issues/detail?id=8488
private void recycleDrawablesRecursive(ViewGroup viewGroup, List<ImageView> images) {
int childCount = viewGroup.getChildCount();
for (int index = 0; index < childCount; index++) {
View child = viewGroup.getChildAt(index);
if (child instanceof ImageView) {
images.add((ImageView) child);
} else if (child instanceof ViewGroup) {
recycleDrawablesRecursive((ViewGroup) child, images);
}
}
viewGroup.destroyDrawingCache();
}
// http://code.google.com/p/android/issues/detail?id=8488
public void recycleDrawables() {
List<ImageView> images = new ArrayList<ImageView>();
// collect all the image views
recycleDrawablesRecursive(this, images);
for (ImageView imageView : images) {
imageView.destroyDrawingCache();
Drawable d = imageView.getDrawable();
if (d != null && d instanceof BitmapDrawable) {
imageView.setImageDrawable(null);
BitmapDrawable bd = (BitmapDrawable) d;
Bitmap bmp = bd.getBitmap();
if (bmp != null) {
bmp.recycle();
}
}
}
}
