SharedPreferencesUtils.java

import android.content.Context;
import android.content.SharedPreferences;

/**
 * Copyright (C) 2016 Mikhael LOPEZ
 * Licensed under the Apache License Version 2.0
 * Utility class for the SharedPreferences management
 */
public class SharedPreferencesUtils {

    // PUBLIC PREF NAME
    public static final String PREFS_EXAMPLE = "example";

    //region Singleton Shared Preferences
    private static final String PREFS_FILE_NAME = "PrefsFile";
    private static SharedPreferences mSharedPreferences;

    private static SharedPreferences getSharedPreferencesEditor(Context context) {
        if (mSharedPreferences == null) {
            mSharedPreferences = context.getSharedPreferences(PREFS_FILE_NAME, Context.MODE_PRIVATE);
        }
        return mSharedPreferences;
    }
    //endregion

    public static void setString(Context context, String name, String value) {
        SharedPreferences.Editor editor = getSharedPreferencesEditor(context).edit();
        editor.putString(name, value);
        editor.commit();
    }

    public static String getString(Context context, String name) {
        return getSharedPreferencesEditor(context).getString(name, null);
    }
    
    public static void remove(Context context, String name) {
        getSharedPreferencesEditor(context).edit().remove(name).commit();
    }

}