数据存储：Internal Storage与Shared Preferences(二)

一开始输入leelit，点击get data按钮打印：File Not Found；

输入你好，点击sava data，再次点击get data，打印：你好。使用的操作模式不同，文件内容可以被覆盖也可以是追加内容。

public class MainActivity extends ActionBarActivity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		Button button = (Button) findViewById(R.id.button);
		Button button1 = (Button) findViewById(R.id.button1);

		button.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				SharedPreferences sp = getSharedPreferences("leelit",
						Context.MODE_PRIVATE); // 获得SharedPreferences对象
				SharedPreferences.Editor editor = sp.edit(); // 获得Editor对象
				editor.putString("name", "leelit"); // 存放数据
				editor.putString("sex", "male");
				editor.commit(); // 执行
				Toast.makeText(MainActivity.this, "succeeded in saving data",
						Toast.LENGTH_LONG).show();
			}
		});

		button1.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				SharedPreferences sp = getSharedPreferences("leelit",
						Context.MODE_PRIVATE); // 获得SharedPreferences对象
				String name = sp.getString("name", null); // 获取数据
				String sex = sp.getString("sex", null);
				Toast.makeText(MainActivity.this,
						"name:" + name + "\nsex:" + sex, Toast.LENGTH_LONG)
						.show();
			}
		});

	}
}

点击save data后点击save data，吐司：name:leelit sex:male