android 如何监听返回键点击事件,并创建一个退出对话框, 防止自己写的应用程序不小心点击退出键而直接退出.自己记录下这个简单的demo,备用. public class BackKeyTest extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedI…
本文转自:http://blog.csdn.net/sunnyfans/article/details/8094349 Android 如何监听返回键点击事件,并创建一个退出对话框, 防止自己写的应用程序不小心点击退出键而直接退出.自己记录下这个简单的demo,备用. 注:如下代码当时是从网上copy过来的,现在忘了它出自哪个原作者了,在此说声抱歉. 源码如下: public class BackKeyTest extends Activity { /** Called when the act…
By default, the progress monitor delays for a short period before it is displayed. There are two properties that control when the dialog is displayed - - millisToPopup and millisToDecideToPopup. The progress monitor computes a time-to-completion base…
