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Merge "Correctly invalidate views that transition from opaque to non-opaque. Bug #3337037" into honeycomb

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This commit is contained in:
Romain Guy
2011-01-21 19:02:05 -08:00
committed by Android (Google) Code Review
parent fa9d452b45 c5d55863ec
commit 596ba2fa79
2 changed files with 11 additions and 4 deletions
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9
core/java/android/view/View.java
View File

@ -1813,6 +1813,8 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
private int mPrevWidth = -1;
private int mPrevHeight = -1;
private boolean mLastIsOpaque;
/**
* Convenience value to check for float values that are close enough to zero to be considered
* zero.
@ -6726,7 +6728,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
public void invalidate() {
invalidate(true);
}
/**
* This is where the invalidate() work actually happens. A full invalidate()
* causes the drawing cache to be invalidated, but this function can be called with
@ -6743,8 +6745,11 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
ViewDebug.trace(this, ViewDebug.HierarchyTraceType.INVALIDATE);
}
boolean opaque = isOpaque();
if ((mPrivateFlags & (DRAWN | HAS_BOUNDS)) == (DRAWN | HAS_BOUNDS) ||
(invalidateCache && (mPrivateFlags & DRAWING_CACHE_VALID) == DRAWING_CACHE_VALID)) {
(invalidateCache && (mPrivateFlags & DRAWING_CACHE_VALID) == DRAWING_CACHE_VALID) ||
opaque != mLastIsOpaque) {
mLastIsOpaque = opaque;
mPrivateFlags &= ~DRAWN;
if (invalidateCache) {
mPrivateFlags &= ~DRAWING_CACHE_VALID;

6
core/java/android/view/ViewRoot.java
View File

@ -710,8 +710,10 @@ public final class ViewRoot extends Handler implements ViewParent,
// object is not initialized to its backing store, but soon it
// will be (assuming the window is visible).
attachInfo.mSurface = mSurface;
attachInfo.mUse32BitDrawingCache = PixelFormat.formatHasAlpha(lp.format) ||
lp.format == PixelFormat.RGBX_8888;
// We used to use the following condition to choose 32 bits drawing caches:
// PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888
// However, windows are now always 32 bits by default, so choose 32 bits
attachInfo.mUse32BitDrawingCache = true;
attachInfo.mHasWindowFocus = false;
attachInfo.mWindowVisibility = viewVisibility;
attachInfo.mRecomputeGlobalAttributes = false;