- IDE: Android Studio 3.1
- Language: Java
- Target SDK: 23
- Min SDK Version: 17 ( Android 4.2 )
From Android Studio, select Build -> Build APK. You dont need "Generate signed APK" , it 's not necessary because you wont upload this application to the Play Store.
Waitng for minutes... And you will see a popup at the bottom of Android Studio, click on locate and you will see your apk file.
Upload your apk file to diawi or deploygate and install on your own devices. That 's all :D.