PrefsUtil.java

PrefsUtil.java

import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;

/**
 * Created by Hamed on 11/24/2014.
 */
public class PrefsUtil {
    public static final String PREFS_LOGIN_USERNAME_KEY = "__USERNAME__";
    public static final String PREFS_LOGIN_PASSWORD_KEY = "__PASSWORD__";

    /**
     * Called to save supplied value in shared preferences against given key.
     *
     * @param context Context of caller activity
     * @param key     Key of value to save against
     * @param value   Value to save
     */
    public static void saveToPrefs(Context context, String key, String value) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        SharedPreferences.Editor editor = prefs.edit();
        editor.putString(key, value);
        editor.commit();
    }

    public static void removePref(Context context, String key) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        SharedPreferences.Editor editor = prefs.edit();
        editor.remove(key);
        editor.commit();
    }

    public static void saveToPrefsAsync(Context context, String key, String value) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        SharedPreferences.Editor editor = prefs.edit();
        editor.putString(key, value);
        editor.apply();
    }

    /**
     * Called to retrieve required value from shared preferences, identified by given key.
     * Default value will be returned of no value found or error occurred.
     *
     * @param context      Context of caller activity
     * @param key          Key to find value against
     * @param defaultValue Value to return if no data found against given key
     * @return Return the value found against given key, default if not found or any error occurs
     */
    public static String getFromPrefs(Context context, String key, String defaultValue) {
        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
        try {
            return sharedPrefs.getString(key, defaultValue);
        } catch (Exception e) {
            e.printStackTrace();
            return defaultValue;
        }
    }
}