bug:
11121809
Fading edges, such as drawn by a scrolling marquee TextView, don't
behave correctly when their view is modulated, as done by the view
system when alpha is set on a view that returns false from
hasOverlappingRendering.
To work around this, always return true from hasOverlappingRendering
if a TextView has horizontal fading edges enabled.
Change-Id: I64c9b8c653aa1d9ca320292306fd24333e3ee225
@Override
public boolean hasOverlappingRendering() {
+ // horizontal fading edge causes SaveLayerAlpha, which doesn't support alpha modulation
return ((getBackground() != null && getBackground().getCurrent() != null)
- || mText instanceof Spannable || hasSelection());
+ || mText instanceof Spannable || hasSelection()
+ || isHorizontalFadingEdgeEnabled());
}
/**