• Android Activity管理类


    public class AppManager {
        
        private static 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(){
            Activity activity=activityStack.lastElement();
            return activity;
        }
        /**
         * 结束当前Activity(堆栈中最后一个压入的)
         */
        public void finishActivity(){
            Activity activity=activityStack.lastElement();
            finishActivity(activity);
        }
        /**
         * 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) {    }
        }
    }
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  • 原文地址:https://www.cnblogs.com/sishuiliuyun/p/3139969.html
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