android Menu

package com.zhibo8.com; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.SubMenu; import android.widget.TextView; public class MyOptionMenuDemo extends Activity { /** Called when the activity is first created. */ final static int MENU_DOWNLOAD=Menu.FIRST; final static int MENU_UPLOAD=Menu.FIRST+1; final static int MENU_CLICK=Menu.FIRST+2; final static int SUB_MENU_UPLOAD_A=Menu.FIRST+3; final static int SUB_MENU_UPLOAD_B=Menu.FIRST+4; static int ClickNum=0; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); super.setContentView(R.layout.main); } public boolean onCreateOptionsMenu (Menu menu){ menu.add(0,MENU_UPLOAD,0,"上传"); SubMenu uploadMenu = (SubMenu) menu.addSubMenu(0,MENU_DOWNLOAD,1,"下载设置"); uploadMenu.setHeaderIcon(R.drawable.icon); uploadMenu.setHeaderTitle("下载参数设置"); uploadMenu.add(0,SUB_MENU_UPLOAD_A,0,"下载参数A"); uploadMenu.add(0,SUB_MENU_UPLOAD_B,0,"下载参数B"); menu.add(0,MENU_CLICK,2,"查看点击次数").setIcon(R.drawable.icon); return true; } public boolean onOptionsItemSelected(MenuItem item){ TextView textview=(TextView)findViewById(R.id.textview); switch(item.getItemId()){ case MENU_UPLOAD: ClickNum++; return true; case MENU_CLICK: textview.setText("上传的点击次数是："+ClickNum); return true; } return false; } }