Android Studio is Google's official IDE for Android app development.
The latest about Android Studio is v 4.0 with Motion Editor, layout inspector, layout validation, smart editor features, Kotlin support and more.
If you are planning to do Android app development, I highly recommend using Android Studio. There is a lot of in-built help.
Android Studio 4.1 is released to public
Android Studio will soon be WYSIWYG if they move on this path
Just kidding, but there are many helpful GUI based editing in latest versions when compared to the old ones.