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Commit d153c4f6 authored by Chong Zhang's avatar Chong Zhang
Browse files

Fix flicker when releasing drag of divider 

bug: 25564523
Change-Id: I9c19f40f27cc80b8e6e0e98a0d6455941bd624e7
parent b226c153

core/java/android/view/ViewRootImpl.java

+2 −1
Original line number Diff line number Diff line
@@ -5659,7 +5659,8 @@ public final class ViewRootImpl implements ViewParent, 
        if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString()

                + " contentInsets=" + contentInsets.toShortString()

                + " visibleInsets=" + visibleInsets.toShortString()

                + " reportDraw=" + reportDraw);

                + " reportDraw=" + reportDraw

                + " backDropFrame=" + backDropFrame);



        // Tell all listeners that we are resizing the window so that the chrome can get

        // updated as fast as possible on a separate thread,

services/core/java/com/android/server/wm/WindowState.java

+9 −3
Original line number Diff line number Diff line
@@ -1886,10 +1886,16 @@ final class WindowState implements WindowManagerPolicy.WindowState { 
            Configuration newConfig) throws RemoteException {

        DisplayInfo displayInfo = getDisplayInfo();

        mTmpRect.set(0, 0, displayInfo.logicalWidth, displayInfo.logicalHeight);

        boolean resizing = computeDragResizing();

        // When the task is docked, we send fullscreen sized backDropFrame as soon as resizing

        // start even if we haven't received the relayout window, so that the client requests

        // the relayout sooner. When dragging stops, backDropFrame needs to stay fullscreen

        // until the window to small size, otherwise the multithread renderer will shift last

        // one or more frame to wrong offset. So here we send fullscreen backdrop if either

        // isDragResizing() or isDragResizeChanged() is true.

        boolean resizing = isDragResizing() || isDragResizeChanged();

        final Rect backDropFrame = (inFreeformWorkspace() || !resizing) ? frame : mTmpRect;

        mClient.resized(frame, overscanInsets, contentInsets, visibleInsets, stableInsets,

                outsets, reportDraw, newConfig, inFreeformWorkspace() || !resizing

                         ? frame : mTmpRect);

                outsets, reportDraw, newConfig, backDropFrame);

    }



    public void registerFocusObserver(IWindowFocusObserver observer) {