Update ListView's children when the drawing cache color hint changes. (52e2ef8c) · Commits · e / os / android_frameworks_base

core/java/android/view/View.java

+4 −1

Original line number	Diff line number	Diff line
		@@ -6177,7 +6177,10 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
		* @see #getDrawingCache()
		*/
		public void setDrawingCacheBackgroundColor(int color) {
		if (color != mDrawingCacheBackgroundColor) {
		mDrawingCacheBackgroundColor = color;
		mPrivateFlags &= ~DRAWING_CACHE_VALID;
		}
		}

		/**

+41 −1

Original line number	Diff line number	Diff line
		@@ -3250,7 +3250,14 @@ public abstract class AbsListView extends AdapterView<ListAdapter> implements Te
		* @param color The background color
		*/
		public void setCacheColorHint(int color) {
		if (color != mCacheColorHint) {
		mCacheColorHint = color;
		int count = getChildCount();
		for (int i = 0; i < count; i++) {
		getChildAt(i).setDrawingCacheBackgroundColor(color);
		}
		mRecycler.setCacheColorHint(color);
		}
		}

		/**
		@@ -3670,5 +3677,38 @@ public abstract class AbsListView extends AdapterView<ListAdapter> implements Te
		}
		}
		}

		/**
		* Updates the cache color hint of all known views.
		*
		* @param color The new cache color hint.
		*/
		void setCacheColorHint(int color) {
		if (mViewTypeCount == 1) {
		final ArrayList<View> scrap = mCurrentScrap;
		final int scrapCount = scrap.size();
		for (int i = 0; i < scrapCount; i++) {
		scrap.get(i).setDrawingCacheBackgroundColor(color);
		}
		} else {
		final int typeCount = mViewTypeCount;
		for (int i = 0; i < typeCount; i++) {
		final ArrayList<View> scrap = mScrapViews[i];
		final int scrapCount = scrap.size();
		for (int j = 0; j < scrapCount; j++) {
		scrap.get(i).setDrawingCacheBackgroundColor(color);
		}
		}
		}
		// Just in case this is called during a layout pass
		final View[] activeViews = mActiveViews;
		final int count = activeViews.length;
		for (int i = 0; i < count; ++i) {
		final View victim = activeViews[i];
		if (victim != null) {
		victim.setDrawingCacheBackgroundColor(color);
		}
		}
		}
		}
		}