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Commit 0732628b authored by Rick Yiu's avatar Rick Yiu
Browse files

Add null check for vrManager 

If VrManagerService is not started, vrManager will be null. Need
add check for it.

Test: robotests
Bug: 116427118
Change-Id: I899337bb5a996efffe82970fa690f2c5d59c1bb5
Merged-In: I899337bb5a996efffe82970fa690f2c5d59c1bb5
parent 6ec0b215

src/com/android/settings/display/BrightnessLevelPreferenceController.java

+13 −5
Original line number Diff line number Diff line
@@ -150,14 +150,22 @@ public class BrightnessLevelPreferenceController extends AbstractPreferenceContr 
        return (value - min) / (max - min);

    }



    @VisibleForTesting

    IVrManager safeGetVrManager() {

        return IVrManager.Stub.asInterface(ServiceManager.getService(

                Context.VR_SERVICE));

    }



    @VisibleForTesting

    boolean isInVrMode() {

        IVrManager vrManager = safeGetVrManager();

        if (vrManager != null) {

            try {

            return IVrManager.Stub.asInterface(ServiceManager.getService(Context.VR_SERVICE))

                    .getVrModeState();

                return vrManager.getVrModeState();

            } catch (RemoteException e) {

                Log.e(TAG, "Failed to check vr mode!", e);

            }

        }

        return false;

    }

}

tests/robotests/src/com/android/settings/display/BrightnessLevelPreferenceControllerTest.java

+6 −0
Original line number Diff line number Diff line
@@ -81,6 +81,12 @@ public class BrightnessLevelPreferenceControllerTest { 
        assertThat(mController.isAvailable()).isTrue();

    }



    @Test

    public void isInVrMode_noVrManager_shouldAlwaysReturnFalse() {

        doReturn(null).when(mController).safeGetVrManager();

        assertThat(mController.isInVrMode()).isFalse();

    }



    @Test

    public void onStart_shouldRegisterObserver() {

        BrightnessLevelPreferenceController controller =