Android 通讯

android 进程间通讯方式:  

    Activity  intent

    Content Provider

    广播（Broadcast） 

    Service

Android实现异步的几种方法

    1.继承Thread类

    2.实现Runnable接口

    3.AsyncTask

    4.Handler

    5.Activity.runOnUIThread(Runnable)

    6.View.Post(Runnable)

    7.View.PostDelayed(Runnabe,long)