File saved by previous installation not recognized

[vknow360 (Sunny Gupta)]

@amitontheweb

I was wondering why should this happen

Due to Scoped Storage, introduced in Android 10.

Some basics on Android storage system

From an Android point of view there are an → Internal Storage and an → External Storage. 1. Internal Storage The Internal Storage can only be accessed with a rooted device. 1.1 The app package is saved in /data/data/<packageName>/ 1.2. The Private directory is /data/user/0/<packageName>/files/ This private directory can be used with the File component to save / read text (setting the path without a slash). It can only be accessed by your app and is automatically removed when the app is un…

You can access a non-media file created by your app as long as app is installed. Once you uninstall the app, you lose its owner permission and thus you can’t read or write to it.
However, you can still access it with SAF.