在android中使用Menu时可能需要重写的方法有?

[不定项选择题]

查看正确选项

syd。。。。

public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@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;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
switch(item.getItemId()){
case R.id.menu_about:
Toast.makeText(MainActivity.this, ""+"关于", Toast.LENGTH_SHORT).show();
break;
case R.id.menu_settings:
Toast.makeText(MainActivity.this, ""+"设置", Toast.LENGTH_SHORT).show();
break;
case R.id.menu_quit:
Toast.makeText(MainActivity.this, ""+"退出", Toast.LENGTH_SHORT).show();
break;
default:
break;
}
// Toast.makeText(MainActivity.this, ""+item.getItemId(), Toast.LENGTH_SHORT).show();
return super.onOptionsItemSelected(item);
}