1.
Xamarin Triad

2.
@josemmortega
Xamarin freelance developer

3.
MVVM
- Pattern created for WPF
- Like MVC without posts
- Easy to implement.
- (Only need include a interface)

4.
Demo

5.
Dependency injection
Service locator
Inversion of control

6.
Wait…

7.
Do you know how use a interface?

8.
public interface IJedi
{
IJedi Master {get;set;}
double Midiclorians {get;set;}
Ienumerable<IJediPowers>
{get;set;}
}

9.
public abstract class AJedi
{
IJedi Master {get;set;}
double Midiclorians {get;set;}
IEnumerable<IJediPowers>
{get;set;}
}

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

11.
Public void RequestJedi(Ijedi Jedi)
{
//TODO: Send to risky mission…
}

12.
Disney decide every Jedi require a
Gungan companion…

13.
public interface Ijedi
{
IJedi Master {get;set;}
double Midiclorians {get;set;}
IEnumerable<IJediPowers>
{get;set;}
Int GunganCompanion {get;set;}
}

14.
Container
I accept any interface with implementation

15.
Container
I accept any interface with implementation
OK, I pass a to Obi Wan Kenobi it’s a IJedi

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

17.
Container
May you give me a IJedi?

18.
Container
May you give me a IJedi?
Sure, here you go!

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

20.
Sharing code techniques

21.
Like rebels destroy death star with little,
you can sharing code with little

22.
- In platform, source code of platform

23.
- In platform, source code of platform
- Remember…

24.
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

25.
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

26.
Master I want to learn Xamarin
- YouTube channel
- https://www.youtube.com/channel/UC4f4brNfwK85zgH
5Qq4F1Fw
- Twitter
- @josemmortega
- Xamarin documentation
- https://developer.xamarin.com/

27.
Thanks!