App startup time
Users expect apps to be responsive and fast to load. An app with a slow start time doesn’t meet this expectation, and can be disappointing to users. This sort of poor experience may cause a user to rate your app poorly on the Play store, or even abandon your app altogether.
This document provides information to help you optimize your app’s launch time. It begins by explaining the internals of the launch process. Next, it discusses how to profile startup performance. Last, it describes some common start-time issues, and gives some hints on how to address them.
https://developer.android.com/topic/p...