[存储] 利用SharedPreferences保存账号密码

通过saveAccount()方法保存账号和密码,以及getAccountUsername()和getAccountPassword()取出账号密码.

可以达到登录界面保存账号密码的效果.

完整代码

import android.app.Application;

import android.content.SharedPreferences;public class SharedPreferenceManager {private static SharedPreferenceManager sManager;private static String AccountUsername = "username";private static String AccountPassword = "password";public SharedPreferences account = new Application().getSharedPreferences("account", Application.MODE_PRIVATE);//记住账号密码private SharedPreferenceManager() {}public static SharedPreferenceManager getInstance() {if (sManager == null) {sManager = new SharedPreferenceManager();}return sManager;}public void saveAccount(String username,String password) {SharedPreferences.Editor edit = account.edit();edit.putString(AccountUsername, username);edit.putString(AccountPassword, password);edit.commit();}public String getAccountUsername() {return account.getString(AccountUsername, "");}public String getAccountPassword() {return account.getString(AccountPassword, "");}}