There a several things that you need know before start to work with Xamarin. If not, you can't join to rebel army

1. Xamarin Triad

2. @josemmortega
Xamarin freelance developer

4. MVVM
- Pattern created for WPF
- Like MVC without posts
- Easy to implement.
- (Only need include a interface)

5. Demo

6. Dependency injection
Service locator
Inversion of control

7. Wait…

8. Do you know how use a interface?

9. public interface IJedi
{
IJedi Master {get;set;}
double Midiclorians {get;set;}
Ienumerable<IJediPowers>
{get;set;}
}

10. public abstract class AJedi
{
IJedi Master {get;set;}
double Midiclorians {get;set;}
IEnumerable<IJediPowers>
{get;set;}
}

11. public abstract class JediMaster : IJedi
{
IJedi Master {get;set;}
double Midiclorians {get;set;}
IEnumerable<IJediPowers>
{get;set;}
}

12. Public void RequestJedi(Ijedi Jedi)
{
//TODO: Send to risky mission…
}

13. Disney decide every Jedi require a
Gungan companion…

14. public interface Ijedi
{
IJedi Master {get;set;}
double Midiclorians {get;set;}
IEnumerable<IJediPowers>
{get;set;}
Int GunganCompanion {get;set;}
}

15. Container
I accept any interface with implementation

16. Container
I accept any interface with implementation
OK, I pass a to Obi Wan Kenobi it’s a IJedi

17. Container
I accept any interface with implementation
OK, I pass a to Obi Wan Kenobi it’s a IJedi
Cool! Thanks!

18. Container
May you give me a IJedi?

19. Container
May you give me a IJedi?
Sure, here you go!

20. Container
May you give me a IJedi?
Sure, here you go!
Wait... What?

21. Sharing code techniques

22. Like rebels destroy death star with little,
you can sharing code with little

23. - In platform, source code of platform

24. - In platform, source code of platform
- Remember…

27. API
Nativa
PCL
Platform code
Create a interface
Create your
implementation all in PCL
Create a interface in PCL
Create your
implementation in
platform code

28. API
Nativa
PCL
Platform code
Create a interface
Create your
implementation all in PCL
Create a interface in PCL
Create your
implementation in
platform code
TIP!
It’s like Rule of Three.
PCL  Direct proportional
Platform code  Indirect proportional

29. Master I want to learn Xamarin
- YouTube channel
- https://www.youtube.com/channel/UC4f4brNfwK85zgH
5Qq4F1Fw
- Twitter
- @josemmortega
- Xamarin documentation
- https://developer.xamarin.com/

30. Thanks!