如何深入探究Android应用启动起点

When we talk about the starting point of an Android app, we are referring to the entry point of the app, which is the first activity that is started when the app is launched. This is typically the main activity, but it could also be a splash screen or a login screen. Regardless of what it is, the starting point is the first activity that is started when the app is launched.

There are a few things that can happen when an app is launched. The first is that the app could be launched from scratch, meaning that it was not running in the background and no activities were previously started. The second is that the app could be launched from a previous state, meaning that it was running in the background and one or more activities were previously started. The third is that the app could be launched from a saved state, meaning that it was not running in the background but one or more activities were previously started.

When an app is launched from scratch, the Android system will create a new process for the app and then call the app's main activity's onCreate() method. This is the starting point of the app. From here, the app can do whatever it needs to do to get itself up and running.

If the app was launched from a previous state, the Android system will try to reuse the process that was used to last run the app. If the process is no longer available, the system will create a new process for the app. In either case, the system will call the app's main activity's onCreate() method. From here, the app can do whatever it needs to do to get itself up and running.

If the app was launched from a saved state, the Android system will create a new process for the app and then call the app's main activity's onCreate() method. From here, the app can do whatever it needs to do to get itself up and running.