Python GUI库-Kivy概览

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1.简介

1.1.Kivy

Kivy: Cross-platform Python Framework for NUI Development.

Kivy - Open source Python library for rapid development of applications that make use of innovative user interfaces, such as multi-touch apps.

官网:kivy.org/

1.2.Feature

  • Python UI库

  • 跨平台:Linux, Windows, OS X, Android, iOS, Raspbery Pi

    • 支持多种输入设备和协议:WM_Touch, WM_Pen, Mac OS X Trackpad and Magic Mouse, Mtdev, Linux Kernel HID, TUIO等。
  • MIT协议

  • GPU加速:图形引擎基于OpenGL ES 2;自带20多种Widget;

2.Demo

2.1.安装

pip install kivy

2.2.Demo

from random import random
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.uix.button import Button
from kivy.graphics import Color, Ellipse, Line
​
​
class MyPaintWidget(Widget):
​
    def on_touch_down(self, touch):
        color = (random(), 1, 1)
        with self.canvas:
            Color(*color, mode='hsv')
            d = 30.
            Ellipse(pos=(touch.x - d / 2, touch.y - d / 2), size=(d, d))
            touch.ud['line'] = Line(points=(touch.x, touch.y))
​
    def on_touch_move(self, touch):
        touch.ud['line'].points += [touch.x, touch.y]
​
​
class MyPaintApp(App):
​
    def build(self):
        parent = Widget()
        self.painter = MyPaintWidget()
        clearbtn = Button(text='Clear')
        clearbtn.bind(on_release=self.clear_canvas)
        parent.add_widget(self.painter)
        parent.add_widget(clearbtn)
        return parent
​
    def clear_canvas(self, obj):
        self.painter.canvas.clear()
​
​
if __name__ == '__main__':
    MyPaintApp().run()

参考:kivy.org/doc/stable/…

运行

image-20211208233335395.png

2.3.打包

  • Windows: PyInstanller

参考:kivy.org/doc/stable/…

3.总结

  • 支持GPU加速,图形性能应该不错,可以考虑用来开发工具软件。

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Python GUI库-Kivy概览