Android Menu控件源码

package com.jiahui.activity; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; public class MenuDemoActivity extends Activity { private static final int ITEM = Menu.FIRST; private static final int ITME2 = Menu.FIRST + 1; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } public boolean onCreateOptionsMenu(Menu menu) { // menu.add("一个参数的add方法的菜单"); // menu.add("一个参数的add方法的菜单2"); //menu.add(R.string.titileRes); menu.add(0, ITEM, 0, "下载").setIcon(R.drawable.download);//设置图标 menu.add(0, ITME2, 0, "上传").setIcon(R.drawable.upload); return true; } // 通过点击了哪个菜单子项来改变Activity的标题 public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case ITEM: setTitle("单击了菜单子项1"); break; case ITME2: setTitle("单击了菜单子项2"); break; } return true; } }