https://victoriaschool.com.ua

1. Ecosystem Apps
INNOVATIVE CROSS-PLATFORM SOLUTIONS
Sergey Seletsky
Abiliton™ Senior Software Engineer

2. Agenda
1. Why?
2. What is an ecosystem?
3. Problems?
4. WinRT with HTML5 for other...
5. Cross-platform frameworks
• Xamarin
• Titanium
• Portable apps
• AppMobi
6. Specific integrated API
7. Apps integration
8. Apps Stores
9. Ecosystem architecture
10. Conclusions

3. What is an
ecosystem?

5. Enterprise App Ecosystem
App Hub IT organization Windows Phone
1. Registration 1. Device Enrollment
2. Signing Tools 2. Get apps
3. Cert and
Enterprise ID
1. Develop App
2. Package and sign
Registration
1. Enterprise registers with App Hub 3. App Catalog
2. Enterprise downloads app tools
3. Microsoft notifies CA of pending 4. Create Token
enterprise registration
4. Vets enterprise
5. CA checks that vetting is complete,
and generates a certificate for
enterprise

6. Why ?

7. Smartphone Market Share
Platforms
Google Apple Microsoft RIM

8. Native Wrappers
• Phonegap
• Titanium
• appMobi
• Create native apps using HTML5
• Provide API’s (Hooks to get out of the sandbox)
• Work across platforms (mostly)
• Can be submitted to app stores

9. Cross-Platform Devices
• Phones
– iOS – iPhone, Touch
– Android
– Blackberry
– Windows Phone 7
• Tablets
– iPad
– Android

10. Mobile Capabilities That Influence Apps
• GeoLocation • Bluetooth
• PIM Contacts • Calendar
• Camera • Push
• Barcode • Screen Rotation
• Date/Time Picker • Native Maps
• Native Menus • Alert
• Tab Bar • Audio File Playback
• Navigation Bar • Ringtones
• Signature Capture • NFC

12. Cross-platform frameworks
1. Xamarin
2. Titanium
3. Portable apps
4. AppMobi
5. PhoneGap

13. Xamarin

14. Asynchronous code before
MyApi.OnSomeMethod += () => {
InvokeOnMainThread( (result) => {
textView.Text = result;
});
}
MyApi.SomeMethodAsync();

15. async/await
textView.Text = await MyApi.GetUrlAsync(
“http://softserveinc.com”);

16. С# vs Objective-C
Objective-C:
// …
[button addTarget:self
action:@selector(touchHandler:)
forControlEvents:UIControlEventTouchUpInside];
// …
-(void) touchHandler:(id)sender {
textView.text = @"some text";
}

17. С# vs Objective-C
C#:
btn.TouchUpInside += (s, e) => {
textView.Text = "Clicked!";
};

18. C# vs Java
Java:
button.setOnClickListener(
new View.OnClickListener() {
public void onClick(View v) {
textView.setText(“Clicked”);
}
}
);

19. C# vs Java
C#:
button.Click += (s, e) {
textView.Text = “Clicked!”;
};

20. C# vs {0}
• Simply
• Cleaner
• Develops very quickly
• From Java sand pours
• [[[[After Objective-C] world : square] as: very]
and all: in the colon];

21. What is Monotouch
• Mono framework with AOT compilation for
ARM processors and Bindings to Native API
• Code is written in C #
• UI is native tongue, through C # wrapper
• Development environment Visual Studio

22. Compilation process
• Compile your code, libraries, BCL, wrappers
over native methods in IL
• You can use any language IL
• Converted into machine code using AOT
compilation
• Added to app code with Mono Runtime and
everything else

23. AOT vs JIT
• Usually in. Net and Mono native code
generated at run - Just In Time compilation
• In iOS you can not compile code on JIT, only
static linking
• But we already know the architecture (ARM)
so you can compile the code in advance -
Ahead Of Time compilation

24. Restrictions AOT
• No Emit, but remains Reflection
• Some specific designs will not work, because
compiled on JIT
• Generic Virtual Methods
– P/Invokes in Generic Types
– Some LINQ expressions

25. Linking
• At time of compilation of IL BCL undertakes
only code that is actually used
• Similarly, you can cut out unused code in
their libraries
• Need to reduce the size of app

26. C# API
• Subscribe to Events
• Setting Properties
• Familiar names
var btn = new UIButton(new RectangleF(0, 0, 200, 80));
btn.Enabled = true;
btn.SetTitleColor(UIColor.FromRGB(255, 255, 0),
UIControlState.Selected);
btn.TouchUpInside += delegate {
// your code
};
window.Add(btn);

27. Wrappers over native methods
Monotouch:
• It all comes down to P/Invoke method
objc_msgSend with the appropriate
parameters
Mono for Android:
• Used JNI (Java Native Interface)

28. Wrappers over native methods
public virtual bool Enabled
{
[Export("isEnabled")]
get
{
// …
return
Messaging.bool_objc_msgSend(base.Handle, UIControl.selIsEnabled);
}
[Export("setEnabled:")]
set
{
// …
Messaging.void_objc_msgSend_bool(base.Handle,
UIControl.selSetEnabled_, value);
}
}

29. App Structure
• Virtually same in native app
• AppDelegate, UIWindows, ViewControllers
• To describe UI also uses nib files

30. Development environment – Visual Studio

31. Cross-platform
• Sharing in 30-60 percent of the code
• Combining basic mobile functionality
• There are various MVVM frameworks
Xamarin Titanium PhomeGap
Shared Specific Shared Specific Shared Specific

33. Use of opportunities of Windows OS
Win32 API
Vista Bridge
Windows Bridge
.NET Framework
– Windows Presentation Foundation
– Windows Communication Foundation
– Windows Workflow Foundation

34. Windows 8 platform

35. Installation Store Apps

36. Transitions between states
App are given several App is not notified
seconds to sleep
User
Terminated
Launches Low Resources
App
App
App is notified with
continued
Splash
screen App not running

37. Process isolation

38. Language projection
IInspectable
C++ App
IUnknown
Projection
C#/VB App
Object
Projection
CLR
HTML App
Projection
Chakra
Windows Metadata

39. IInspectable
Collections
IUnknown C++ App
STL-style
IVector<T> Projection
IVectorView<T>
Array
IObservableVector<T> C#/VB App
IEnumerable
CLR
(T) style
Projection
IInspectable
IUnknown
HTML App
IMap<T>
Chakra
JavaScript
Projection
Associative
IMapView<T>
Collection
IObservableMap<T>

40. Asynchrony in Windows 8
• All that is more than 50 milliseconds –
asynchronously
• Windows Runtime: IAsyncOperation<T>
• JavaScript: Promises
• C++: Parallel Patterns Library
• VB/C#: async /await

41. Threading
Windows
Windows Windows
UI
Object Object
Object
App Code App Code App Code

42. Architecture WinRT
Metro App
Language Support
(CLR, WinJS, CRT)
Language projection
UI Pickers Controls Media Web Host
(HTML, CSS, JavaScri
XAML Storage Network … pt)
Windows
Metadata &
Namespace DirectX
Windows Runtime Core Runtime Broker
Win32
Windows Core

43. Runtime app
Your App
Direct API calls
Process.exe WinRT APIs
Core OS
Brokered API calls
Broker
App Container + Signed
& Validated code
AppXManifest

44. Brokered Objects
RuntimeBroker.exe App
Projection
Proxy
Windows
Runtime Object

45. Windows Runtime APIs
User Interface
HTML5/CSS XAML DirectX Controls Data Binding
SVG Tiles Input Accessibility Printing
Devices Communications & Data
Geolocation Portable Sensors NFC Contracts Local & Cloud Storage Web
Media Notifications Streams
Memory
Playback Capture PlayTo Visual Effects XML Networking SMS
Management
Fundamentals
Application Services Threading/Timers Memory Management Authentication Cryptography Globalization

46. Sensors
Accelerometer
Gyroscope
Compass
Agitation Turn Overturning
Slope
Light
In dark Indoors Outdoors Orientation

48. Areas of integration
On Windows OS Together With cloud
Live tiles Contracts : Synchronization
Notifications app settings
• Search
Contracts
• Share Live SDK
Settings
Print
…

49. Pop-up notifications
Toast Notifications
Show messages from apps and services outside the UI apps
Attract attention
Is disconnected
Allow the user to go directly to the section of the app
Initiated locally or from cloud

50. Windows Push Notification Service
Windows 8 Cloud Service
Serves pop-up notifications and update live tiles
external services
Metro
Tile updated and notifications are working even when Style 2
not running app App
Takes control of communications devices 1 3
Windows Push
Notification
Scaled without you Notification
Service
Client 3
Platform
Free
1. Request for URL notification channel
2. Service registration
3. Notifications

51. Contracts - part of a large family
• App to App Picking contract
• Contact Picker
• File activation
• Play To contract
• Print task settings
• Protocol activation
• Search contract
• Settings contract
• Share contract

52. How does this work
Source app Share Broker Target apps
Registration User selected
DataTransfer Manager “Share”
Activation DataPackage Filter apps or links Activated
User has selected a Processing
Asynchronous processing
target DataPackage
App start-goal Completion Report
DataPackage in source
app

54. Unprecedented coverage

55. Income distribution
70%
new
applications
80%
once you do
$25,000

56. Best economy
To generate $ 1 million profit
Price: $4.99
~250,000 sales
0.05% users Windows from
500+ Windows 7

60. Azure Service Bus
• Unified set of messaging capabilities
Consistent management and observation capabilities
• Service Bus Relay
• Rich options for interconnecting apps across network
boundaries
• Service Bus Brokered Messaging
• Queuing, publish/subscribe
• Easily build hybrid apps
• Available as PaaS & on-premise server

61. Conclusions

62. Thank you!