Xml文件的内容（自定义的menu布局）
activity中的内容
private PopupWindow
pop ;
private View
layout;
privateintstatus = 2 ;//1.菜单弹出
2.菜单未弹出
private Button
help,about;
public menuactivity extends Activity｛
publicboolean onKeyDown(int keyCode, KeyEvent event)｛
switch (keyCode) {
case KeyEvent.KEYCODE_MENU://按下menu键
if(status == 1)
returnfalse;
layout = getLayoutInflater().inflate(R.layout.menulayout,
null);
//
创建PopupWindow对象，并在指定位置弹出用于显示菜单的窗口
pop =
new PopupWindow(layout,LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT,true);
pop.setBackgroundDrawable(new BitmapDrawable());//响应返回键必须要有这句，但是必须放在showAtLocation或者showAsDropDown之前有用,（或者null）
//
设置弹出窗口的位置
pop.showAtLocation(layout,Gravity.CENTER,
0, 0);
pop.setFocusable(true);//
menu菜单获得焦点如果没有获得焦点menu菜单中的按键事件无法响应
//添加菜单选项的单击事件
help = (Button)
layout.findViewById(R.id.menu_help);
about = (Button)
layout.findViewById(R.id.menu_about);
help.setOnClickListener(new OnClickListener()
{
@Override
publicvoid onClick(View v) {
pop.dismiss();
MobclickAgent.onEvent(PandaMain.this, getString(R.string.umid_clk_help));
startActivity(new Intent(PandaMain.this,
ActivityHelp.class));
}
});
about.setOnClickListener(new OnClickListener() {
@Override
publicvoid onClick(View v) {
MobclickAgent.onEvent(PandaMain.this, getString(R.string.umid_clk_about));
startActivity(new Intent(PandaMain.this,
ActivityAbout.class));
}
});
break;
case KeyEvent.KEYCODE_BACK:
pop.dismiss();
break;
}
｝