def click(self, x, y):
        """
        Args:
            x, y (float): position to tap
        
        Example:
            if x, y both less than 1.0. then x, y means percentage position

                d.click(0.5, 0.5) # click center of screen
                d.click(20, 10) # click position(20, 10)
        """
        if x < 1 and y < 1:
            display = self.display
            x *= display.width
            y *= display.height
        return self.do_tap(x, y)