Invalidate display list on alpha change (5e78d9be) · Commits · e / os / android_frameworks_base

core/java/android/widget/TextView.java

+15 −9

Original line number	Diff line number	Diff line
		@@ -4637,6 +4637,7 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		// Alpha is supported if and only if the drawing can be done in one pass.
		// TODO text with spans with a background color currently do not respect this alpha.
		if (getBackground() == null) {
		if (mCurrentAlpha != alpha) {
		mCurrentAlpha = alpha;
		final Drawables dr = mDrawables;
		if (dr != null) {
		@@ -4647,9 +4648,14 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		if (dr.mDrawableStart != null) dr.mDrawableStart.mutate().setAlpha(alpha);
		if (dr.mDrawableEnd != null) dr.mDrawableEnd.mutate().setAlpha(alpha);
		}
		mTextDisplayListIsValid = false;
		}
		return true;
		}

		if (mCurrentAlpha != 255) {
		mTextDisplayListIsValid = false;
		}
		mCurrentAlpha = 255;
		return false;
		}