public class PrefUtils {

    public static void putBoolean(String key, boolean value, Context ctx) {

        SharedPreferences sp = ctx.getSharedPreferences("config",

                Context.MODE_PRIVATE);

        sp.edit().putBoolean(key, value).commit();

    }

    public static boolean getBoolean(String key, boolean defValue, Context ctx) {

        SharedPreferences sp = ctx.getSharedPreferences("config",

                Context.MODE_PRIVATE);

        return sp.getBoolean(key, defValue);

    }

    public static void putString(String key, String value, Context ctx) {

        SharedPreferences sp = ctx.getSharedPreferences("config",

                Context.MODE_PRIVATE);

        sp.edit().putString(key, value).commit();

    }

    public static String getString(String key, String defValue, Context ctx) {

        SharedPreferences sp = ctx.getSharedPreferences("config",

                Context.MODE_PRIVATE);

        return sp.getString(key, defValue);

    }

    public static void putInt(String key, int value, Context ctx) {

        SharedPreferences sp = ctx.getSharedPreferences("config",

                Context.MODE_PRIVATE);

        sp.edit().putInt(key, value).commit();

    }

    public static int getInt(String key, int defValue, Context ctx) {

        SharedPreferences sp = ctx.getSharedPreferences("config",

                Context.MODE_PRIVATE);

        return sp.getInt(key, defValue);

    }

    public static void remove(String key, Context ctx) {

        SharedPreferences sp = ctx.getSharedPreferences("config",

                Context.MODE_PRIVATE);

        sp.edit().remove(key).commit();

    }

}