Android Entwicklung

developer.android.com/

https://developer.android.com/

Droid lernen

https://droid-lernen.de/

DroidWiki

https://www.droidwiki.org/wiki/Hauptseite

android-app-programmieren-tutorial

http://www.programmierenlernenhq.de/android-app-programmieren-tutorial/

www.uni-trier.de/fileadmin/urt/doku/android/android.pdf

https://www.uni-trier.de/fileadmin/urt/doku/android/android.pdf

Android Studio Tutorial Deutsch

https://www.youtube.com/channel/UCiccpAp7AT4PS96d5VU8X0w

GPS

https://demonuts.com/current-gps-location/
https://www.androidhive.info/2012/07/android-gps-location-manager-tutorial/
https://www.youtube.com/watch?v=gDQnC-QA95Q
https://androidexample.com/GPS_Basic__-__Android_Example/index.php?view=article_discription&aid=68
https://medium.com/@parsaniahardik/current-gps-location-android-studio-tutorial-5ce778a6caad