通过Kivy访问Android相机

Question

请我正在寻找通过kivy访问Android相机的工作,或者我可以与kivy集成以访问相机的库.

我正在开发一个Android应用程序,但使用python-kivy的UI,

什么都会真的很感激,

非常感谢.

Answer 1

这是我的示例代码,适用于Android.只需导入该文件https://github.com/kivy/plyer/blob/master/plyer/platforms/android/camera.py 另外,不要忘记向清单添加CAMERA权限.

main.py:

__version__ = '1.0'

import kivy

# importing file from https://github.com/kivy/plyer/blob/master/plyer/platforms/android/camera.py
# I downloaded it and saved it in the same directory:
from camera import AndroidCamera

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import ObjectProperty, StringProperty

import base64

class MyCamera(AndroidCamera):
    pass

class BoxLayoutW(BoxLayout):
    my_camera = ObjectProperty(None)
    # /sdcard means internal mobile storage for that case:
    image_path = StringProperty('/sdcard/my_test_photo.png')

    def __init__(self, **kwargs):

        super(BoxLayoutW, self).__init__()

        self.my_camera = MyCamera()

    def take_shot(self):
        self.my_camera._take_picture(self.on_success_shot, self.image_path)

    def on_success_shot(self, loaded_image_path):
        # converting saved image to a base64 string:
        image_str = self.image_convert_base64
        return True

    #converting image to a base64, if you want to send it, for example, via POST:
    def image_convert_base64(self):
        with open(self.image_path, "rb") as image_file:
            encoded_string = base64.b64encode(image_file.read())
        if not encoded_string:
            encoded_string = ''
        return encoded_string

if __name__ == '__main__':

    class CameraApp(App):
        def build(self):
            main_window = BoxLayoutW()
            return main_window

    CameraApp().run()

camera.kv:

<BoxLayoutW>:

    Button:
        text: 'shot'
        on_release: root.take_shot()

Answer 2

Kivy 对调用相机有一些原生支持。查看核心提供商的新编程指南中的此页面或uix 小部件的新编程指南中的此页面。理论上，核心应该能够在平台之间适应，并且小部件应该能够使用相机。