Java Binding Tips and Tricks 2017

Transcript

1. Java Binding Tips and Tricks 2017

2. Agenda ▪ ▪ ▪

3. Java Bindings Libraries in Xamarin.Android Ecosystem Xamarin.Android (Mono.Android.dll) other Java

   Libs Framework Libraries (System*) OpenTK other .NET Libs (PCL, netstandard, XA libs) Android Framework & Java Framework Subset

4. What are Java Bindings? ▪ ▪ ▪

5. Why use Java Bindings? ▪ ▫ ▪ ▫ ▫

6. Which are Java Bindings, for example? ▪ ▪ ▪ ▪

   github:xamarin/XamarinComponents

7. Discover Java Android Experience ▪ github:wasabeef/awesome-android-ui ▪ ▪

8. How Java Bindings work ▪ ▪ JNI ▪ ▪

9. How Java Bindings work ▪ ▪ ▫ ▫ ▪ ▫

   ▪ new

10. Project Structure Tips and Tricks

11. Java Binding Project: general steps

12. How Java Bindings are Built .jar api.xml *.cs *.dll *.cs

    *.cs GenerateBindings CSCompile Metadata.xml additional *.cs reference *.dll reference *.dll ExportJarToXml javadoc .jar

13. Migrate to new Class parser (if old) ▪ ▪ ▪

    ▫ ▪ ▫ ▫ new

14. Jar/Aar and Build Actions ▪ ▫ ▫

15. Xamarin.Build.Download package ▪ ▫ ▫ ▪ ▪ ▫ new

16. ▪ Library Dependency Tips b.jar class C2 extends a.C1 {

    ... } ABinding.dll public class C1 { ... } a.jar api.xml BBinding.dll public class C2 : A.C1 { ...} a.jar class C1 { ... } b.jar

17. Library Dependency Tips ▪ ▫ ▫ ▪ ▫ ▫

18. Give meaningful Parameter Names ▪ ▫ ▫ ▪ ▫ new

19. Importing API Documentation ▪ ▫

20. Metadata Fixup Tips and Tricks

21. ▪ ▪ ▪ ▪ Build Bindings without Metadata fixup

22. Metadata fixup: why is it required? ▪ ▫ ▫ ▪

    ▫ ▫

23. ▪ ▪ ▫ ▫ ▫ ▪ ▪ [Java Bindings Metadata]

    Metadata.xml

24. Find the causes of unexpected results ▪ ▪ ▫

25. Easiest build fix ▪ ▫ ▪

26. Individual Metadata fixup Tips ▪ ▪ ▪ ▪ ▪ ▪

    ▪ ▪ ▪ Troubleshooting Bindings

27. Namespace / Type Name conflicts

28. Fix Inconsistent Member Access Java C#

29. Dealing with Variants and Generics Java C#

30. Dealing with Variants and Generics Java C#

31. Dealing with Variants and Generics

32. Name Collision on EventArgs Java C#

33. Name Collision on EventArgs

34. Beautifying Managed API ▪ ▫ ▫ ▫ ▪ ▫ →

    ▪ ▫ →

35. Knowing Limitations...

36. Future Topics

37. Java8 Default Interface Methods ▪ ▫ ▪ ▫ ▫ ▪

    ▫

38. Java8 Default Interface Methods ▪ ▪ ▪

39. Android Architecture Components ▪ ▫ ▪ ▫ ▫

40. Android Architecture Components ▪ ▫ ▫ ▪ ▫ ▫

41. Thanks ▪ ▫ ▫ ▫ ▫ ▫