zoukankan      html  css  js  c++  java
  • Android 向Application对象添加Activity监听

    可以建立对象把Application.ActivityLifecycleCallbacks接口中的函数实现,并利用public void registerActivityLifecycleCallbacks (Application.ActivityLifecycleCallbacks callback)函数向application添加代理对象。

    比如以下代码,在本程序的全部activity的resume时都会调用。

     @Override
        public void onActivityResumed(Activity arg0) {
            System.out.println("onActivityResumed...................");
    
            System.out.println("~~~~~~~~~~~~test activity is "+arg0.getClass());
    
            if( arg0.getClass() == PasscodeUnlockActivity.class )
                return;
    
            System.out.println("onActivityResumed.........111111..........");
           if(  ( this.appLockDisabledActivities != null ) && Arrays.asList(this.appLockDisabledActivities).contains( arg0.getClass().getName() ) )
               return;
    
            System.out.println("onActivityResumed........22222...........");
            if(mustShowUnlockSceen()) {
                //uhhh ohhh!
                System.out.println("show lock........4444..........");
                Intent i = new Intent(arg0.getApplicationContext(), PasscodeUnlockActivity.class);
                i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                arg0.getApplication().startActivity(i);
                return;
            }
    
        }

     

  • 相关阅读:
    窗口实训1
    课后练习----实现窗口的切换
    第五次实训作业继承
    课程总结
    999
    777777777777777777777
    7
    6
    5
    事件处理程序
  • 原文地址:https://www.cnblogs.com/breezemist/p/3880969.html
Copyright © 2011-2022 走看看