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Commit b178c342 authored by Tyler Freeman's avatar Tyler Freeman
Browse files

fix(force invert): fix app not redrawing when Force Invert enabled 

Sometimes, the app doesn't respond immediately when you turn on force
invert. This uses the same technique as High-contrast text to force
everything to redraw.

Bug: 282821643
Flag: android.view.accessibility.force_invert_color
Test: manual:
1. Activate force invert from Settings
2. Switch to a light theme app
3. The app should immediately redraw to be dark

Change-Id: I710ba56fe4ea4e98f1d6d59b4c3c8405dc3a77a7
parent 02d33275

core/java/android/view/ViewRootImpl.java

+18 −6
Original line number Diff line number Diff line
@@ -2068,9 +2068,13 @@ public final class ViewRootImpl implements ViewParent, 
        if (mAttachInfo.mThreadedRenderer == null) return;

        if (mAttachInfo.mThreadedRenderer.setForceDark(determineForceDarkType())) {

            // TODO: Don't require regenerating all display lists to apply this setting

            if (forceInvertColor()) {

                destroyAndInvalidate();

            } else {

                invalidateWorld(mView);

            }

        }

    }















    @UnsupportedAppUsage















    public View getView() {










@@ -11922,13 +11926,21 @@ public final class ViewRootImpl implements ViewParent,













        public void onHighTextContrastStateChanged(boolean enabled) {















            ThreadedRenderer.setHighContrastText(enabled);



























            // Destroy Displaylists so they can be recreated with high contrast recordings













            destroyAndInvalidate();













        }













    }

























    /**













     * Destroy Displaylists so they can be recreated with new recordings, in case you are changing













     * the way things are rendered (e.g. high contrast, force dark), then invalidate to trigger a













     * redraw.













     */













    private void destroyAndInvalidate() {















        destroyHardwareResources();





























        // Schedule redraw, which will rerecord + redraw all text















        invalidate();















    }













    }





























    /**















     * This class is an interface this ViewAncestor provides to the