[BUG] Do not show success messages when uninstall state is unclear

[seniordevel]

I attempted to uninstall Motorola PAKS, which cannot be disabled via Android settings and is recommended for removal in Canta. Canta reports that the uninstall was successful. However, after restarting Canta, the app is still present. It also remains visible and active in Android settings (I can see new PAKS connections in Rethink logs). Therefore, the “success” message shown by Canta appears to be incorrect.

To Reproduce
Steps to reproduce the behavior:

1. Select Motorola PAKS for uninstall in Canta
2. Tap the trash icon
3. Observe the “Success/Done” message and verify that PAKS appears in the “Uninstalled Apps” tab
4. Close and restart Canta
5. Check the “Uninstalled Apps” tab again — PAKS is no longer listed there
6. Search for PAKS in the list of available apps — it appears again

Expectation:
Motorola PAKS should be fully uninstalled and remain absent after restarting Canta. It should not reappear in the app list or continue running in the system.

Version info

• Android version: 15
• Canta version: 3.2.2 via FDroid
• Shizuku version: 13.6.0

Edit: If it cannot be be uninstalled ( like issue #338 ), there should be at least a failure message.

[samolego]

I suspect it's the same issue. I agree, there should be an error shown

[seniordevel]

Yes, an error message would be very helpful.
Thank you!

[mayanksharma-dev]

This is not actually an error. When the uninstall method (as per AOSP) is called via Hidden API, it internally checks whether the app is protected by the OEM (and kind of skips if protected—not really, but for understanding purposes) and the function runs successfully whether it uninstalls it or not, as there was no error. Due to which it appears successful even when some apps are not uninstalled.

[seniordevel]

... the function runs successfully whether it uninstalls it or not, as there was no error. Due to which it appears successful even when some apps are not uninstalled.

If the uninstall function/API does not return an error, Canta can still verify whether the app remains installed afterward. Therefore, I would still request either an error message, or that no success message be shown when the actual state is unclear.

[SerraraFluttershy]

Yeah, just had this same bug when trying to uninstall a protected system app on a Quest 2 headset (com.oculus.updater) .