Java tutorial
//package com.java2s; import android.content.Context; import android.content.SharedPreferences; import android.preference.PreferenceManager; public class Main { public static void putSharedPreferencesBoolean(Context context, String key, boolean val) { SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context); SharedPreferences.Editor edit = preferences.edit(); edit.putBoolean(key, val); edit.apply(); } }