子菜单

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.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SubMenu;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends Activity {
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);

}
public boolean onCreateOptionsMenu(Menu menu)
{
menu.add(0,1,0,"save")
.setIcon(R.drawable.smile);

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

SubMenu subMenu=menu.addSubMenu(0,3,0,"search")
.setIcon(R.drawable.question);
subMenu.add(0,4,0,"本地");
subMenu.add(0,5,0,"网络");
return true;
}
public boolean onOptionsItemSelected(MenuItem item)
{
super.onOptionsItemSelected(item);
switch (item.getItemId())
{
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;
case 4:
new AlertDialog.Builder(this).setMessage("你点击了子菜单“本地按钮”").show();
break;
case 5:
new AlertDialog.Builder(this).setMessage("你点击了资产的“网络”按钮").show();
break;
default:
break;
}
return true;
}

}