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Invalidate display list on alpha change

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Bug 5945886

Change-Id: Ibab3ad2c9e526c038672699b571de154dfc8d17c
This commit is contained in:
Gilles Debunne
2012-02-14 15:58:30 -08:00
parent 9ae7631332
commit 5e78d9bea5
1 changed files with 15 additions and 9 deletions
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24
core/java/android/widget/TextView.java
View File

@@ -4637,19 +4637,25 @@ 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) {
mCurrentAlpha = alpha;
final Drawables dr = mDrawables;
if (dr != null) {
if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha);
if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha);
if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha);
if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha);
if (dr.mDrawableStart != null) dr.mDrawableStart.mutate().setAlpha(alpha);
if (dr.mDrawableEnd != null) dr.mDrawableEnd.mutate().setAlpha(alpha);
if (mCurrentAlpha != alpha) {
mCurrentAlpha = alpha;
final Drawables dr = mDrawables;
if (dr != null) {
if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha);
if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha);
if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha);
if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha);
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;
}