Merge "Fix a bug that ripple might get readded to WM and cause crash." into sc-dev

    }

    fun startRipple() {

        if (rippleView.rippleInProgress) {

        if (rippleView.rippleInProgress || rippleView.parent != null) {

            // Skip if ripple is still playing, or not playing but already added the parent

            // (which might happen just before the animation starts or right after

            // the animation ends.)

            return

        }

        val mWM = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager