小控件的使用

1、当点击Menu键时，如果希望弹出菜单，则希望重写的方法如下：

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     @Override    public boolean onCreateOptionsMenu(Menu menu) {    // TODO Auto-generated method stub        menu.add(0,0,0,"first");    menu.add(0,1,1,"second");    menu.add(0,1,2,"third");    menu.add(1,0,0,"four");    return super.onCreateOptionsMenu(menu);    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {    // TODO Auto-generated method stub        openOption();  //为自己处理的代码    return super.onOptionsItemSelected(item);    }

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2 、myDialog = ProgressDialog.show(this, title, message);

new Thread(){@Overridepublic void run() {try {sleep(4000);//自己的业务代码} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally{myDialog.dismiss();  //一定要调用，不然回不到主页面了}}}.start();