Merge "Fix OnBackAnimationCallback not receiving updates" into main

            setTopOnBackInvokedCallback(null);

        }

        // We should also stop running animations since all callbacks have been removed.

        // note: mSpring.skipToEnd(), in ProgressAnimator.reset(), requires the main handler.

        Handler.getMain().post(mProgressAnimator::reset);

        mAllCallbacks.clear();

        mOnBackInvokedCallbacks.clear();

    }

import static android.window.OnBackInvokedDispatcher.PRIORITY_OVERLAY;

import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertNull;

import static org.mockito.ArgumentMatchers.any;

import static org.mockito.ArgumentMatchers.isNull;

import static org.mockito.Mockito.atLeast;

    }

    @Test

    public void onDetachFromWindow_cancelCallbackAndIgnoreOnBackInvoked() throws RemoteException {

    public void onDetachFromWindow_cancelsBackAnimation() throws RemoteException {

        mDispatcher.registerOnBackInvokedCallback(PRIORITY_DEFAULT, mCallback1);

        OnBackInvokedCallbackInfo callbackInfo = assertSetCallbackInfo();

        waitForIdle();

        verify(mCallback1).onBackStarted(any(BackEvent.class));

        // This should trigger mCallback1.onBackCancelled()

        // This should trigger mCallback1.onBackCancelled() and unset the callback in WM

        mDispatcher.detachFromWindow();

        // This should be ignored by mCallback1

        callbackInfo.getCallback().onBackInvoked();

        OnBackInvokedCallbackInfo callbackInfo1 = assertSetCallbackInfo();

        assertNull(callbackInfo1);

        waitForIdle();

        verify(mCallback1, never()).onBackInvoked();

        verify(mCallback1).onBackCancelled();

    }

}