Project to control your raspberry-pi-zero-w unicornhathd lamp with your android phone. This is the Android part.
Current minSdkVersion 14, so it should work for Android 4.0 upwards, though I only tested it on Android 7.1
Project compiles with Android Studio 3.3.2. Might work with other versions too, but that is the one I used.
See this instructable for details.
I used this tutorial for the bluetooth communication.
You should follow the instructions on the raspberry part first.
If you did, you are now paired with the raspberry.
Use Android studio to install the app and have fun :)