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Commit f8b88cd8 authored by Jeff DeCew's avatar Jeff DeCew
Browse files

Fix 1-frame delay when rendering NSSL inside Flexiglass 

Fixes: 325467496
Test: manual flexi testing
Flag: ACONFIG com.android.systemui.scene_container DEVELOPMENT
Change-Id: I406828960b18075c0021740e353ff5a901f1397c
parent b693882e

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java

+19 −1
Original line number Diff line number Diff line
@@ -316,6 +316,10 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable 
            = new ViewTreeObserver.OnPreDrawListener() {

        @Override

        public boolean onPreDraw() {

            if (SceneContainerFlag.isEnabled() && !mChildrenUpdateRequested) {

                getViewTreeObserver().removeOnPreDrawListener(this);

                return true;

            }

            updateForcedScroll();

            updateChildren();

            mChildrenUpdateRequested = false;
@@ -677,7 +681,10 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable 
                res.getBoolean(R.bool.config_drawNotificationBackground);

        setOutlineProvider(mOutlineProvider);



        boolean willDraw = mShouldDrawNotificationBackground || mDebugLines;

        // We could set this whenever we 'requestChildUpdate' much like the viewTreeObserver, but

        // that adds a bunch of complexity, and drawing nothing isn't *that* expensive.

        boolean willDraw = SceneContainerFlag.isEnabled()

                || mShouldDrawNotificationBackground || mDebugLines;

        setWillNotDraw(!willDraw);

        mBackgroundPaint.setAntiAlias(true);

        if (mDebugLines) {
@@ -813,7 +820,18 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable 
        }

    }



    private void onJustBeforeDraw() {

        if (SceneContainerFlag.isEnabled()) {

            if (mChildrenUpdateRequested) {

                updateForcedScroll();

                updateChildren();

                mChildrenUpdateRequested = false;

            }

        }

    }



    protected void onDraw(Canvas canvas) {

        onJustBeforeDraw();

        if (mShouldDrawNotificationBackground

                && (mSections[0].getCurrentBounds().top

                < mSections[mSections.length - 1].getCurrentBounds().bottom