Android安卓SharedPreferences使用 增删改查
1.创建SharedPreferences对象：
SharedPreferences dataBase = getSharedPreferences("SharedPreferences", Activity.MODE_PRIVATE);
SharedPreferences.Editor edit = dataBase.edit();
2.保存数据：
dataBase.edit().putString("NAME", userName.getText().toString()) ;
dataBase.edit().putString("PASS", password.getText().toString())
dataBase.edit().commit();
3.读取数据：
String name = dataBase.getString("NAME", "");
String pass = dataBase.getString("PASS", "");
Toast.makeText(this, "读取数据如下："+"\n"+"name：" + name + "\n" + "pass：" + pass,Toast.LENGTH_LONG).show();
4.删除数据：
dataBase.edit.remove("name").commit();
dataBase.edit().clear().commit();