摘要：
从一个BroadcastReceiver的onReceive方法启动一个Activity通常需要在Intent里边添加一个Flag Intent.FLAG_ACTIVITY_NEW_TASK看文档：If set, this activity will become the start of a new task on this history stack. A task (from the activity that started it to the next task activity) defines an atomic group of activities that the user 阅读全文
