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Commit 67f04233 authored by Achim Thesmann's avatar Achim Thesmann
Browse files

Allow Home app to BAL during app switches 

The tightened visibility check sometimes fails because the window
manager's app switch state is still/already disallowed when the home app
initiates certain actions (its purpose is to switch between apps).
So allowlisting the home app to ignore the stricter app switch
restriction.
This reverts the behavior for the home app back to the state before
enabling the balImproveRealCallerVisibilityCheck flag.

Test: atest BackgroundActivityLaunchTest
Bug: 323739101
Change-Id: Ic537c6fcb43e466e4df6d9383579cee33fccd060
parent f845c4f7

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

+3 −1
Original line number Diff line number Diff line
@@ -913,8 +913,10 @@ public class BackgroundActivityStartController { 


        // Normal apps with visible app window will be allowed to start activity if app switching

        // is allowed, or apps like live wallpaper with non app visible window will be allowed.

        // The home app can start apps even if app switches are usually disallowed.

        final boolean appSwitchAllowedOrFg = state.mAppSwitchState == APP_SWITCH_ALLOW

                || state.mAppSwitchState == APP_SWITCH_FG_ONLY;

                || state.mAppSwitchState == APP_SWITCH_FG_ONLY

                || isHomeApp(state.mRealCallingUid, state.mRealCallingPackage);

        if (balImproveRealCallerVisibilityCheck()) {

            if (appSwitchAllowedOrFg && state.mRealCallingUidHasAnyVisibleWindow) {

                return new BalVerdict(BAL_ALLOW_VISIBLE_WINDOW,