kv 22 simple draw

click or drag and drop to move rectangle

#draw.py

from kivy.app import App

from kivy.uix.widget import Widget

from kivy.graphics import Rectangle

from kivy.graphics import Color

from kivy.graphics import Line

class Draw(Widget):

    def __init__(self, **kwargs):

        super(Draw, self).__init__()

        with self.canvas:

            Color(0, 1, 0, .5, mode='rgba')

            Line(points=(20, 30, 400, 500, 60, 500))

            Color(1, 0, 0, 0.5, mode='rgba')

            self.rect = Rectangle(pos=(100, 100), size=(50, 100))

    def on_touch_down(self, touch):

        self.rect.pos = touch.pos

    def on_touch_move(self, touch):

        self.rect.pos = touch.pos

class DrawApp(App):

    def build(self):

        return Draw()

DrawApp().run()

reference:

https://www.youtube.com/watch?v=8vD-V5jpjBo