Some tips for beginners developing Android apps using Kotlin in Android Studio

1. Useful references:

   • Google documentation
     https://developer.android.com/topic/architecture

   • Example project in GitHub
     https://github.com/android/sunflower

   • Stack Overflow
     E.g. How to make a delay call.
     https://stackoverflow.com/questions/3072173/how-to-call-a-method-after-a-delay-in-android
     

   • Kotlin language guide
     https://book.kotlincn.net/

2. Problem: Emulator not responding
   

   Solution: Cold boot device in AVD