SharedPreferenceHelper.java

public class SharedPreferenceHelper {
    private final static String PREF_FILE = "PREF";

    /**
     * Set a string shared preference
     * @param key - Key to set shared preference
     * @param value - Value for the key
     */
    static void setSharedPreferenceString(Context context, String key, String value){
        SharedPreferences settings = context.getSharedPreferences(PREF_FILE, 0);
        SharedPreferences.Editor editor = settings.edit();
        editor.putString(key, value);
        editor.apply();
    }

    /**
     * Set a integer shared preference
     * @param key - Key to set shared preference
     * @param value - Value for the key
     */
    static void setSharedPreferenceInt(Context context, String key, int value){
        SharedPreferences settings = context.getSharedPreferences(PREF_FILE, 0);
        SharedPreferences.Editor editor = settings.edit();
        editor.putInt(key, value);
        editor.apply();
    }

    /**
     * Set a Boolean shared preference
     * @param key - Key to set shared preference
     * @param value - Value for the key
     */
    static void setSharedPreferenceBoolean(Context context, String key, boolean value){
        SharedPreferences settings = context.getSharedPreferences(PREF_FILE, 0);
        SharedPreferences.Editor editor = settings.edit();
        editor.putBoolean(key, value);
        editor.apply();
    }

    /**
     * Get a string shared preference
     * @param key - Key to look up in shared preferences.
     * @param defValue - Default value to be returned if shared preference isn't found.
     * @return value - String containing value of the shared preference if found.
     */
    static String getSharedPreferenceString(Context context, String key, String defValue){
        SharedPreferences settings = context.getSharedPreferences(PREF_FILE, 0);
        return settings.getString(key, defValue);
    }

    /**
     * Get a integer shared preference
     * @param key - Key to look up in shared preferences.
     * @param defValue - Default value to be returned if shared preference isn't found.
     * @return value - String containing value of the shared preference if found.
     */
    static int getSharedPreferenceInt(Context context, String key, int defValue){
        SharedPreferences settings = context.getSharedPreferences(PREF_FILE, 0);
        return settings.getInt(key, defValue);
    }

    /**
     * Get a boolean shared preference
     * @param key - Key to look up in shared preferences.
     * @param defValue - Default value to be returned if shared preference isn't found.
     * @return value - String containing value of the shared preference if found.
     */
    static boolean getSharedPreferenceBoolean(Context context, String key, boolean defValue){
        SharedPreferences settings = context.getSharedPreferences(PREF_FILE, 0);
        return settings.getBoolean(key, defValue);
    }
}