def on_touch_up(self, touch):
        if touch.grab_current is not self:
            return
        touch.ungrab(self)
        dy = abs(touch.y - touch.oy)
        if dy < 10:
            if self.video.volume > 0:
                self.video.volume = 0
            else:
                self.video.volume = 1.
dataset/ETHPy150Open kivy/kivy/kivy/uix/videoplayer.py/VideoPlayerVolume.on_touch_up/original