Android 利用SharedPreferences保存与删除 用户登录数据

创建SharedPreferences对象：

SharedPreferences sharedPreferences = context.getSharedPreferences("userInfo", MODE_PRIVATE); Editor editor = sharedPreferences.edit(); editor.putString("username", “用户名”); editor.putString("userid", "用户ID"); editor.commit();

读取数据：

SharedPreferences sharedPreferences = context.getSharedPreferences("userInfo", MODE_PRIVATE);

String username = sharedPreferences.getString("username", "none");

String userid = sharedPreferences.getString("userid", "");

删除数据：

SharedPreferences sharedPreferences = context.getSharedPreferences("userInfo", MODE_PRIVATE); sharedPreferences.edit().clear().commit();