清除数据后从共享的偏好中获取价值

Question

I am setting some value in shared preference at the time when my app is getting installed.

Now if the user has done clear data then that will be gone and the user has not installed the app again which means that value won't be set again.

So is there any way I can get that value which I have stored in preference at the time of installation of an app after the user has cleared the data?

Answer 1

You can`t restore data without saving all your data into the server after onPause, but you can use sync account adapter Sync adapter or Firebase for storing this data and restore it after application reinstall. Remember that sync is asynchronously and some data may be lost. In other cases if you have WRITE_INTERNAL_STORAGE permission you can save data on SD card, but not in the app folder.

Answer 2

You can not able to retrieve the saved data after user clicks on clear data and clear cache button. Because all the data stored using Shared Preferences are store in the local only we are not using any server. The best example is when you already logged into Facebook and you are doing the same(Clear data and cache) for Facebook app, then again when you will open Facebook, it will ask you to login again because your all credentials are stored in local that is it may be using Shared Preference or SQLite.