Introduction - If you have any usage issues, please Google them yourself
In this section, we study the Android four major Kings of Activity, the Activity pay close attention to what users can do, is responsible for the interaction with the user. Similar to Java Web Page, the Page will load a series of the View to display through internal loading the engine to the user. Can say a simple Android application is made up by a group Activity. Visible on the Activity of learning in learning the entire Android mobile development crucial one annulus. In view of the Android mobile development belongs to the category of the embedded system development, so Google engineers on the Android platform architecture design, will be a lot of components are designed based on the event-driven, developers to adopt the way of manual is not recommended to take the initiative to call them, these behaviors will be unified management over all system. So to master their life cycle is to learn their fundamental ?