public void forceCascadeTearDown() {
        mDetached = true;
        mDropped = true;
        if (!mTornDown) {
            onTearDown();
        }

        for (int i = 0; i < getChildCount(); i++) {
            View child = getChildAt(i);
            if (child instanceof VRTComponent) {
                ((VRTComponent) child).forceCascadeTearDown();
            }
        }
    }
Invoked when a view is dropped by the NativeViewHierarchyManager.
android/viro_bridge/src/main/java/com/viromedia/bridge/component/VRTComponent.java