选项菜单

package com.example.huanglifeng.menudemo;

import android.app.Activity;
import android.app.AlertDialog;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

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.menu_main, menu);
MenuItem menuItem= menu.add(0,1,0,"save")
.setIcon(R.drawable.smile);

menu.add(0,2,0,"delete")
.setIcon(R.drawable.wait);

return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
super.onOptionsItemSelected(item);
int id = item.getItemId();

//noinspection SimplifiableIfStatement
// if (id == R.id.action_settings) {
// return true;
// }sa
switch (id)
{
case 1:
new AlertDialog.Builder(this).setMessage("你点击了save按钮").show();
break;
case 2:
new AlertDialog.Builder(this).setMessage("你点击了delete按钮").show();
break;
default:
break;
}
return true;
//return super.onOptionsItemSelected(item);
}
}