Write to External Storage Android 12

[mackr...@gmail.com]

Hi,

What do I have to do to save a file to External Storage with Android 12?

I am trying this example

https://kivy.org/doc/stable/examples/gen__camera__main__py.html

I have GPS working on Android 12 using Plyer from 

https://github.com/HyTurtle/plyer

But now have trouble saving.  Setting permissions does not work.

Thank you,

Dave

[Dave McCormick]

I think my answer might be in this thread.

https://groups.google.com/g/kivy-users/c/W7h9EVdDPfg/m/09GjAPDJAwAJ

[Robert]

Background reading https://github.com/Android-for-Python/Android-for-Python-Users#android-storage

On modern devices all storage is external, shared storage is implemented as a database, private storage is implemented as a file system. (see link above)

You can copy to shared storage (the database) using the package referenced in that link.

As an aside if you run into issues with Kivy Camera on Android (there are several) use this camera https://github.com/Android-for-Python/Camera4Kivy  (and it handles both shared and private storage).

[mackr...@gmail.com]

Thank you Robert!

For completeness, here is what I have that will save a picture to Download, Documents, Pictures, and probably a couple other places per your article.

Still need to go into the app settings and allow "Camera" and "Files and media".

Buildozer:

android.permissions = WRITE_EXTERNAL_STORAGE, CAMERA

android.api = 32

```

import kivy
from kivy.app import App
from kivy.uix.label import Label
from android.storage import app_storage_path,primary_external_storage_path,\
    secondary_external_storage_path
from android.permissions import request_permissions, check_permission, \
    Permission
from os.path import abspath
from os import getcwd
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
import time
from kivy.properties import StringProperty
from kivy.utils import platform

Builder.load_string('''
<CameraClick>:
    orientation: 'vertical'
    Camera:
        id: camera
        resolution: (640, 480)
        play: False
    ToggleButton:
        text: 'Play'
        on_press: camera.play = not camera.play
        size_hint_y: None
        height: '48dp'
    Button:
        text: 'Capture'
        size_hint_y: None
        height: '48dp'
        on_press: root.capture()
    Label:
        text: root.PictureName
        size_hint_y: None
        height: '48dp'
''')
class CameraClick(BoxLayout):
   
    PictureName = StringProperty()
   
    def capture(self):
        '''
        Function to capture the images and give them the names
        according to their captured time and date.
        '''
       
        if platform == 'android':
            from android.storage import primary_external_storage_path
           
        camera = self.ids['camera']
        timestr = time.strftime("%Y%m%d_%H%M%S")
        picturename = join(primary_external_storage_path(),"Pictures/IMG_{}.png".format(timestr))
        # ~ picturename = join(primary_external_storage_path(),"Download/IMG_{}.png".format(timestr))
        # ~ picturename = join(primary_external_storage_path(),"Documents/IMG_{}.png".format(timestr))
        self.PictureName = picturename
        camera.export_to_png(picturename)
       
class TestCamera(App):

    def build(self):
        return CameraClick()

TestCamera().run()

 ```

[mackr...@gmail.com]

How do you put code into code blocks on Google Groups?

[Elliot Garbus]

How do you put code into code blocks on Google Groups?

Right click and select “paste as plain text”.

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