activity管理类
public class AppManager { private Stack<Activity> activityStack; private static AppManager instance; private AppManager(){} /** * 单一实例 */ public static AppManager getAppManager(){ if(instance==null){ instance=new AppManager(); } return instance; } /** * 添加Activity到堆栈 */ public void addActivity(Activity activity){ if(activityStack==null){ activityStack=new Stack<Activity>(); } activityStack.add(activity); } /** * 获取当前Activity(堆栈中最后一个压入的) */ public Activity currentActivity(){ if(activityStack.isEmpty()){ return null; }else{ return activityStack.lastElement(); } } /** * 结束当前Activity(堆栈中最后一个压入的) */ public void finishActivity(){ Activity activity=activityStack.lastElement(); if(activity!=null){ activity.finish(); activity=null; } } /** * 结束指定的Activity */ public void finishActivity(Activity activity){ if(activity!=null){ activityStack.remove(activity); activity.finish(); activity=null; } } /** * 结束指定类名的Activity */ public void finishActivity(Class<?> cls){ for (Activity activity : activityStack) { if(activity.getClass().equals(cls) ){ finishActivity(activity); } } } /** * 结束所有Activity */ public void finishAllActivity(){ for (int i = 0, size = activityStack.size(); i < size; i++){ if (null != activityStack.get(i)){ activityStack.get(i).finish(); } } activityStack.clear(); } /** * 退出应用程序 */ public void AppExit(Context context) { try { finishAllActivity(); ActivityManager activityMgr= (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); activityMgr.restartPackage(context.getPackageName()); System.exit(0); } catch (Exception e) { } } }