android 完全退出实现

实现方法是在application中定义一个集合存储所有的Activity对象,在Activity创建时添加进集合中,在程序退出时,finish掉所有的Activity即可。

步骤如下:

1.自定义Application,MyApplication.java代码如下:

 1 public class MyApplication extends Application{
 2     private static ArrayList<Activity> activityList;
 3     private static MyApplication sInstance;
 4     @Override
 5     public void onCreate() {
 6         super.onCreate();
 7         activityList=new ArrayList<Activity>();
 8         sInstance=this;
 9     }
10     public static MyApplication getInstance(){
11         return sInstance;
12     }
13     public void addActivity(Activity activity) {
14         activityList.add(activity);
15     }
16     public void exit(){
17         for (Activity activity : activityList) {
18             activity.finish();
19         }
20         System.exit(0);
21     }
22 }

 

2.定义Activity基类BaseActivity,所有的Activity继承BaseActivity,Activity创建时添加Activity对象到Application中的集合中,BaseAcivity.java代码如下:

1 public class BaseActivity extends Activity{
2     @Override
3     protected void onCreate(Bundle savedInstanceState) {
4         super.onCreate(savedInstanceState);
5         MyApplication.getInstance().addActivity(this);
6     }
7 }

 

3.在程序退出是调用MyApplication中exit()方法即可完全退出,代码如下:

MyApplication.getInstance().exit();

 

posted @ 2014-06-27 16:07  小小青年ovo  阅读(437)  评论(0编辑  收藏  举报