Android Preferences is a component to android that allow the developers put objects in SharedPreferences using Google Json Library. Works on Android 4.1 (API level 16) and upwards.
The first step is to include Android Preferences into your project, for example, as a Gradle compile dependency:
implementation "com.raxdenstudios.preferences:x.y.z"(Please replace x, y and z with the latest version numbers: 
Copyright 2015 Ángel Gómez
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