I developing apps using Xamarin.Forms, the app stored some data as App Settings, the issue is when removed the app from the Android phone and installed it again, the old AppSettings doesn't remove.
@MHMADD After app remove you can restart your android phone then your App setting removed. i hope this is helping you.
It's because Android 6 has automatic backup. You need to tune android:allowBackup and android:fullBackupContent in your manifest <application> tag if you don't want your data backed up or if you want to include or exclude some resources.
For More about AutoBackup on Android ： https://developer.android.com/guide/topics/data/autobackup
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