链接https://mp.weixin.qq.com/s?__biz=MzIwNjQ1NzQxNA==&mid=2247484150&idx=1&sn=4007a9cff85df88941e73869b89b1ed4&chksm=97201ddfa05794c9e33c8d0d9e83f407922d24282dc9bd8d67c72debf9713abb1b0586f00bc9&scene=21#wechat_redirect续 深入理解Activity启动流程