本文详细阐述了当ActivityA启动ActivityB时，两个Activity之间生命周期回调的顺序。具体步骤包括：ActivityA的onPause()方法执行，随后ActivityB的onCreate()、onStart()和onResume()方法依次执行，最后如果ActivityA不再可见，则执行其onStop()方法。这种固定的生命周期回调顺序有助于开发者在不同Activity间过渡时管理信息。
The order of lifecycle callbacks is well defined, particularly when the two activities are in the same process (app) and one is starting the other. Here's the order of operations that occur when Activity A starts Activity B:
- Activity A's
onPause()method executes. - Activity B's
onCreate(),onStart(), andonResume()methods execute in sequence. (Activity B now has user focus.) - Then, if Activity A is no longer visible on screen, its
onStop()method executes.
This predictable sequence of lifecycle callbacks allows you to manage the transition of information from one activity to another.
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