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Building Multi-Platform Native Apps with MVVM a...
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Greg Shackles
June 21, 2014
Technology
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Building Multi-Platform Native Apps with MVVM and C#
Greg Shackles
June 21, 2014
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Transcript
Building Multi-Platform Native Apps with MVVM and C# Greg Shackles
Senior Software Engineer Olo @gshackles
[email protected]
github.com/gshackles
gonemobile.io @GoneMobileCast
Google Apple RIM Microsoft Symbian 52.5% Android 41.4% Apple 3.3%
Microsoft 2.5% RIM Source: comScore US Market Share: April 2014
Write Once, Run Anywhere
Write Once, Run Anywhere BUSTED
Xamarin: C# All The Things! * * and F# too!
Xamarin: C# All The Things! * * and F# too!
•100% Native
Xamarin: C# All The Things! * * and F# too!
•100% Native •Full access to platform SDKs
Xamarin: C# All The Things! * * and F# too!
•100% Native •Full access to platform SDKs •BCL, Async, LINQ, etc
Xamarin: C# All The Things! * * and F# too!
•100% Native •Full access to platform SDKs •BCL, Async, LINQ, etc •Improved API
Xamarin: C# All The Things! * * and F# too!
•100% Native •Full access to platform SDKs •BCL, Async, LINQ, etc •Improved API •Shared code across platforms
Xamarin: C# All The Things! * * and F# too!
•100% Native •Full access to platform SDKs •BCL, Async, LINQ, etc •Improved API •Shared code across platforms •Garbage collection
Xamarin: C# All The Things! * * and F# too!
•100% Native •Full access to platform SDKs •BCL, Async, LINQ, etc •Improved API •Shared code across platforms •Garbage collection •Visual Studio / Xamarin Studio
Xamarin: C# All The Things! * * and F# too!
•100% Native •Full access to platform SDKs •BCL, Async, LINQ, etc •Improved API •Shared code across platforms •Garbage collection •Visual Studio / Xamarin Studio •Frequent Releases
MVVM
MVVM View
MVVM View Model
MVVM View View Model Model
MVVM View Binder View Model Model
MVVM Click Me View Binder View Model Model
MVVM Click Me 1. action View Binder View Model Model
MVVM Click Me 1. action 2. event handling View Binder
View Model Model
MVVM Click Me 1. action 2. event handling 3. command
View Binder View Model Model
MVVM Click Me 1. action 2. event handling 3. command
4. access data View Binder View Model Model
MVVM Click Me 1. action 2. event handling 3. command
4. access data 5. notify change View Binder View Model Model
MVVM Click Me 1. action 2. event handling 3. command
4. access data 5. notify change 6. get changed data View Binder View Model Model
MVVM Click Me Hello World! 1. action 2. event handling
3. command 4. access data 5. notify change 6. get changed data 7. update UI View Binder View Model Model
MvvmCross
MvvmCross
MvvmCross: Highlights
• Shared behavior, not presentation MvvmCross: Highlights
• Shared behavior, not presentation • Bind all the platforms!
MvvmCross: Highlights
• Shared behavior, not presentation • Bind all the platforms!
• Powerful binding options MvvmCross: Highlights
• Shared behavior, not presentation • Bind all the platforms!
• Powerful binding options • Convention over configuration MvvmCross: Highlights
• Shared behavior, not presentation • Bind all the platforms!
• Powerful binding options • Convention over configuration • Pluggable architecture MvvmCross: Highlights
• Shared behavior, not presentation • Bind all the platforms!
• Powerful binding options • Convention over configuration • Pluggable architecture • PCL MvvmCross: Highlights
• Shared behavior, not presentation • Bind all the platforms!
• Powerful binding options • Convention over configuration • Pluggable architecture • PCL • Inversion of Control MvvmCross: Highlights
• Shared behavior, not presentation • Bind all the platforms!
• Powerful binding options • Convention over configuration • Pluggable architecture • PCL • Inversion of Control • Testable MvvmCross: Highlights
MvvmCross: Resources
•Source: github.com/slodge/MvvmCross MvvmCross: Resources
•Source: github.com/slodge/MvvmCross •Stuart’s Blog: slodge.blogspot.com MvvmCross: Resources
•Source: github.com/slodge/MvvmCross •Stuart’s Blog: slodge.blogspot.com •N+1: mvvmcross.wordpress.com MvvmCross: Resources
•Source: github.com/slodge/MvvmCross •Stuart’s Blog: slodge.blogspot.com •N+1: mvvmcross.wordpress.com •Chat: jabbr.net/#/rooms/mvvmcross MvvmCross:
Resources
Presenters
• Customize view presentation Presenters
• Customize view presentation • Platform-specific Presenters
• Customize view presentation • Platform-specific • Still retain View
Model logic Presenters
• Customize view presentation • Platform-specific • Still retain View
Model logic Presenters •Tabs / Panorama
• Customize view presentation • Platform-specific • Still retain View
Model logic Presenters •Tabs / Panorama •Split View / Master-Detail
• Customize view presentation • Platform-specific • Still retain View
Model logic Presenters •Tabs / Panorama •Split View / Master-Detail •Fragments
• Customize view presentation • Platform-specific • Still retain View
Model logic Presenters •Tabs / Panorama •Split View / Master-Detail •Fragments •Modals
• Customize view presentation • Platform-specific • Still retain View
Model logic Presenters •Tabs / Panorama •Split View / Master-Detail •Fragments •Modals •Hamburger menu
Presenters
Presenters
Presenters
Presenters
Plugins
Plugins • Accelerometer • Download Cache • Email • File
• Json • Localization • Location • Messenger • Phone Call • Picture Chooser • SQLite • Visibility • Web Browser • Many More!
Xamarin.Forms Shared C# App Logic Shared C# User Interface Code
None
Pages Content MasterDetail Navigation Tabbed Carousel
Pages Layouts Content MasterDetail Navigation Tabbed Carousel Stack Absolute Relative
Grid Content Scroll Frame
Controls
Controls • ActivityIndicator • BoxView • Button • DatePicker •
Editor • EntryImage • Label • ListView • Map • OpenGLView • PickerProgressBar • SearchBar • SliderStepper • TableView • TimePicker • WebView • EntryCell • ImageCell • SwitchCell • TextCell • ViewCell
None