当退出应用时，结束所有activity的方法

1.自定义一个application，并将所有的activity装入activitylist里面，在 AndroidManifest.xml中注册 <application android:name=".ExitAll"></application>

package com.dragon;import java.util.LinkedList;import java.util.List;import android.app.Activity;import android.app.Application;public class ExitAll extends Application {private List<Activity> activityList = new LinkedList<Activity>();private static ExitAll instance;private ExitAll() {}// 单例模式中获取唯一的MyApplication实例public static ExitAll getInstance() {if (null == instance) {instance = new ExitAll();}return instance;}// 添加Activity到容器中public void addActivity(Activity activity) {activityList.add(activity);}// 遍历所有Activity并finishpublic void exit() {for (Activity activity : activityList) {activity.finish();}System.exit(0);}@Overridepublic void onCreate() {// TODO Auto-generated method stubSystem.out.println("ExitAll创建");super.onCreate();}}

2.在每一个activity加入

ExitAll.getInstance().addActivity(OneActivity.this);//当前activity

3.在想结束的activity中加入

ExitAll ea=ExitAll.getInstance();ea.addActivity(TwoActivity.this);//当前的activityea.exit();