TechDays App: Behind the Scenes

This session, co-presented with Geert van der Cruijsen, is about how we built the TechDays 16 mobile app and highlights some of the lessons learned from that project.

1. Geert van der Cruijsen Lead Consultant Xpirit @geertvdc #TECHDAYSNL #TDAPP Roy Cornelissen Lead Consultant Xpirit @roycornelissen
2. Techdays app history
5. Techdays app by the numbers
6. Windows 18% Android 40% iOS 42%
9. Code Sharing
10. Xamarin.Forms Pages Controls Xamarin.Forms ViewModels Business services SQLite Azure Mobile Client DataStores
11. 85%
12. 85% 92%
13. 85% 92% 92%
16. APP
18. 3D-Touch Quick Actions
19. 3D-Touch Quick Actions
23. Lessons learned
31. Xamarin caused by: java.lang.OutOfMemoryError: (Heap Size=49159KB, Allocated=41079KB) at android.graphics.BitmapFactory.nativeDecodeStream(Native Method) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java) at dalvik.system.NativeStart.run(Native Method) java.lang.NullPointerException: null reference at com.google.android.gms.common.internal.zzx.zzz(Unknown Source) at com.google.android.gms.appindexing.Thing$Builder.setName(Unknown Source) at mono.java.lang.RunnableImplementor.n_run(Native Method) at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:30) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at …
37. https://techda ys-2016-staging.azurewebsites.net/ https://techdays-2016- staging.azurewebsites.net/
38. Geert van der Cruijsen gvandercruijsen@xpirit.com @geertvdc #TECHDAYSNL #TDAPP bit.ly/XpiritMagazine Roy Cornelissen rcornelissen@xpirit.com @roycornelissen