android开发基础教程—SharedPreferences读写

代码如下:

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

}

public void onClick(View v) {

switch (v.getId()) {

case R.id.button1:

SharedPreferences sp = this.getSharedPreferences("myxml", Context.MODE_PRIVATE);

Editor editor = sp.edit();

editor.putString("name", "nanguabing");

editor.putInt("age", 20);

//持久化操作到存储设备

editor.commit();

Toast.makeText(this, "写入sp完成", 1).show();

break;

case R.id.button2:

SharedPreferences sp1 = this.getSharedPreferences("myxml", Context.MODE_PRIVATE);

String name = sp1.getString("name", "nobody");

int age = sp1.getInt("age", 0);

Toast.makeText(this, "name=" + name + ",age=" + age, 1).show();

break;

default:

break;

}

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.activity_main, menu);

return true;

}

}

文件格式:
复制代码 代码如下:

<?xml version='1.0' encoding='utf-8' standalone='yes' ?>

<map>

<string name="name">nanguabing</string>

<int name="age" value="20" />

</map>