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; } }

<?xml version='1.0' encoding='utf-8' standalone='yes' ?> <map> <string name="name">nanguabing</string> <int name="age" value="20" /> </map>