Application or activity takes time to load some times

Question

I have created a startup activity from where I am calling another activity which has a view pager and shows some introductory pages.

This app was taking time to loa

Answer 1

There is a strange issue with newly released Android Studio 2.0 (same issue in 2.1) first time of launching application take longer than usual (e.g. 2, 3 seconds or sometimes screen blinks or goes black) this issue happens only in debug mode and not effect your released APK.

A temporary solution to fix this is disabling instant run:

Settings → Build, Execution, Deployment → Instant Run and uncheck Enable Instant Run