安卓简单秒钟倒计时器

无聊撸了个简单倒计时例子，可以从虚拟键盘输入任何秒数，进行倒计时，倒计时结束有提示框，可以重新输入数据开始倒计时或者选择退出程序。一个MainActivity，两个布局文件。

/** Automatically generated file. DO NOT MODIFY */
package com.example.countdown;

public final class BuildConfig {
    public final static boolean DEBUG = true;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        475  2014-11-01 22:40  Countdown\.classpath

     文件        845  2014-11-01 22:40  Countdown\.project

     文件        177  2014-11-01 22:40  Countdown\.settings\org.eclipse.jdt.core.prefs

     文件        884  2014-11-01 22:40  Countdown\AndroidManifest.xml

     文件        884  2014-11-01 22:40  Countdown\bin\AndroidManifest.xml

     文件        351  2014-11-01 22:40  Countdown\bin\classes\com\example\countdown\BuildConfig.class

     文件        788  2014-11-02 01:56  Countdown\bin\classes\com\example\countdown\MainActivity$1.class

     文件        913  2014-11-02 01:56  Countdown\bin\classes\com\example\countdown\MainActivity$2.class

     文件        862  2014-11-02 01:56  Countdown\bin\classes\com\example\countdown\MainActivity$3.class

     文件       1242  2014-11-02 01:56  Countdown\bin\classes\com\example\countdown\MainActivity$TimeCount.class

     文件       3393  2014-11-02 01:56  Countdown\bin\classes\com\example\countdown\MainActivity.class

     文件        349  2014-11-02 00:56  Countdown\bin\classes\com\example\countdown\R$attr.class

     文件        470  2014-11-02 00:56  Countdown\bin\classes\com\example\countdown\R$dimen.class

     文件        416  2014-11-02 00:56  Countdown\bin\classes\com\example\countdown\R$drawable.class

     文件        535  2014-11-02 00:56  Countdown\bin\classes\com\example\countdown\R$id.class

     文件        439  2014-11-02 00:56  Countdown\bin\classes\com\example\countdown\R$layout.class

     文件        397  2014-11-02 00:56  Countdown\bin\classes\com\example\countdown\R$menu.class

     文件        481  2014-11-02 00:56  Countdown\bin\classes\com\example\countdown\R$string.class

     文件        440  2014-11-02 00:56  Countdown\bin\classes\com\example\countdown\R$style.class

     文件        703  2014-11-02 00:56  Countdown\bin\classes\com\example\countdown\R.class

     文件     691036  2014-11-02 01:55  Countdown\bin\classes.dex

     文件     269375  2014-11-02 01:55  Countdown\bin\Countdown.apk

     文件     232610  2014-11-01 22:45  Countdown\bin\dexedLibs\android-support-v4-d5903e6ba01e1fa8f883aea323a647cc.jar

     文件       4210  2014-11-01 22:45  Countdown\bin\res\crunch\drawable-hdpi\ic_launcher.png

     文件       2210  2014-11-01 22:45  Countdown\bin\res\crunch\drawable-mdpi\ic_launcher.png

     文件       6350  2014-11-01 22:45  Countdown\bin\res\crunch\drawable-xhdpi\ic_launcher.png

     文件      12393  2014-11-01 22:45  Countdown\bin\res\crunch\drawable-xxhdpi\ic_launcher.png

     文件      30905  2014-11-02 01:11  Countdown\bin\resources.ap_

     文件        163  2014-11-01 22:40  Countdown\gen\com\example\countdown\BuildConfig.java

     文件       2766  2014-11-02 00:56  Countdown\gen\com\example\countdown\R.java

............此处省略59个文件信息