How to completely remove installed app?

[hottwaj]

I'd like to test what happens on first install of my app, but there seems to be some residual settings (kivy config?) files stored somewhere that aren't deleted when I uninstall the app, or when I "Clear app data" as per this link

What steps do I need to follow to completely delete the app, all settings and all user data?

Thanks!

[KeyWeeUsr]

With the latest version of p4a I experience no such thing.

• interpreter + kv: data/data/your.app.name
• java stuff + jni/C: data/app/your.apk

Maybe you've tried App.user_data_dir, which is a folder on sdcard/your.app.name or I think I saw it even in sdcard/Android/your.app.name and your app uses such config from user_data_dir?

[hottwaj]

Thanks, I'll look into this further... In case it makes a difference I'm still using the SDL/Pygame bootstrap.

[hottwaj]

Aha just found it...
The file ".myapp.ini" (Kivy config file for my app) is stored in "Main Storage" i.e.
/storage/emulated/0/.myapp.ini

My app's user_data_dir folder is:
/storage/emulated/0/myapp

These don't get deleted if I uninstall my app. Is this an issue with the pygame bootstrap?

[hottwaj]

Probably something to do with this change which I may not have pulled into my p4a repo... Will verify later - sorry for the posting noise.

[KeyWeeUsr]

No, this is purely Kivy thing and I didn't find anything from p4a to even target such file (that env. var is something different). I think it's just unhandeled behavior from the Kivy side, because the Config for some reason places the .ini outside of the app folder.

I'm not sure if it's desired, however the app contains the default kivy.ini file at the same folder where folder with logs is (data/data/...) and you probably should target that file if needed. It's still an issue so I'll open one in Kivy repo.

If you'd target kivy.ini file and your app is both android and e.g. some desktop, your default desktop config will be most likely overwritten (<user profile>/.kivy/config.ini)

[hottwaj]

Checked this with newest p4a and yes, config file and user_data_dr still reside in the same place and are not deleted with the app. However I don't have the same issue on ios. Can close if this should be moved to kivy repo? Cheers

[KeyWeeUsr]

Are you sure there are no leftovers in iOS somewhere in the system? About the user_data_dir, that folder isn't deleted anywhere afaik - desktops & android.

[hottwaj]

I made the ios comment because if I delete my app and reinstall it it behaves as if it has just been installed for the first time, which makes me think that the config file for my app is getting deleted on uninstall. I haven't actually checked the file system. Thanks

…

On 10 December 2016 at 11:56, Peter Badida ***@***.***> wrote: Are you sure there are no leftovers in iOS somewhere in the system? About the user_data_dir, that folder isn't deleted anywhere afaik - desktops & android. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#953 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AFXkhRwDxtClXEY_y4ezXveNkw3l9MQqks5rGpOBgaJpZM4LHptQ> .

[KeyWeeUsr]

@hottwaj Could you please post some minimal example that creates such a config file? I tested with latest kivy and p4a this one:

from kivy.base import runTouchApp
from kivy.uix.boxlayout import BoxLayout
from kivy.config import Config
Config.set('graphics', 'height', 50)
Config.write()
runTouchApp(BoxLayout())

But both on Windows and Android it either creates a new one or overwrites in:

• Windows -> %appdata%/.kivy/config.ini
• Android -> /data/data/app.dir/app/.kivy/config.ini or if sdl2 launcher /sdcard/kivy/app/.kivy/config.ini

If your code uses Config.read() or Config.update_config() it's most likely your fault by choosing a path that's not automatically deletable. Still I think I've seen this behavior before, but I'm not sure how to reproduce.

[hottwaj]

Sure I will get this done, but probably not until next week - busy times! Cheers

[KeyWeeUsr]

@hottwaj Please don't forget about this issue, it seems really useful for resolving the additional permission of casual kivy apps.

[hottwaj]

Sure, I have it on my list. I just looked through my config code and can't see anything obvious - I don't use Config.read of Config.update_config.

It will take me more time to build a simplified test I'm afraid.

In the meantime in case it's useful, I use the following config related functions, roughly in this order:
First I provide a build_config method for my app in which I use config.setdefaults.
Later I use config.getint, config.set and config.write during the build() method of my app (when the app runs for the first time)
I use app.load_config somewhere.
I also use ConfigParserProperty in a few places.

Sorry, probably not very helpful... will try to put a simple test together soon. Thanks

[KeyWeeUsr]

Probably it won't be needed anymore, the description was enough. It's the example from App docs. So yeah, a bug 🙍 thanks for the description.

from kivy.app import App
from kivy.uix.label import Label


class TestConfigApp(App):
    def build_config(self, config):
        config.setdefaults('section1', {
            'key1': 'value1',
            'key2': '42'
        })

    def build(self):
        config = self.config
        return Label(text='key1 is %s and key2 is %d' % (
            config.get('section1', 'key1'),
            config.getint('section1', 'key2')))

TestConfigApp().run()

[hottwaj]

Cool, glad that description was helpful! Thanks

[llfkj]

Uh oh. I currently rely on this (mis?)feature. Can you give me some time to have a more detailed look and think of a solution that addresses both the described issue, and the way I'm currently using it?

[KeyWeeUsr]

@llfkj here, I zoomed it for you 🐼 bad line. This is why the config is thrown to sdcard like if it is a root folder. It could be fixed with targeting directly external storage directory, which I guess is removed after uninstalling the app (or removing its data, testing welcome).

More about it here. According to that quote it's removed, yet I experienced weird stuff on Gingerbread like 2 years ago, so...:

The SDK provides us with handy methods to determine where to put our stuff. These places will be deleted automatically when a user removes our apps and this keeps things tidy.

That, however, fixes things only for android and I'm still waiting for a reply about iOS, so that it could be fixed globally. :)

[inclement]

Closing as a Kivy issue rather than a p4a one, which we're aware of and working to fix.

[ghost]

@inclement just for what it's worth, pretty sure it's already fixed on kivy master with the recent config & user data location change on android. (I pushed for that one because of the SDL2 upgrade that introduced the permission stuff that needs it) 👍

[inclement]

@Jonast Thanks, I wasn't sure if it was actually fixed yet. That's great :)