What's New Xamarin.Forms 1.3

What's New Xamarin.Forms 1.3

• 1.
  What’s New In Xamarin.Forms1.3 Craig Dunn craig@xamarin.com
• 2.
  What’s new in1.3? 1. New App class 2. Font Properties 3. Styles 4. Triggers 5. Behaviors 6. Navigation Stack and a lot more…
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  New Application Class1/2 • MainPage property • Can be expressed as XAML • Provides a shared ResourceDictionary for the entire app Styles! The old way The new way Application base set MainPage
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  New Application Class2/2 • Application lifecycle:  OnStart  OnSleep  OnResume • Properties dictionary (persists across app re-starts) NOTE: beware of existing App class in Windows Phone projects.
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  Font refactoring • Thedeprecated Font property was difficult to databind (face, size, style too tightly coupled) • Replaced by:  FontFamily  FontSize  FontAttributes • Use GetNamedSize() to resolve NamedSize enum
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  Styles 1/3 • Youcould previously add objects to a ResourceDictionary, and reference with {StaticResource} The old way
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  Styles 2/3 • Youcould always add properties to a ResourceDictionary, and reference with {StaticResource} • Now you can group into a Style and share! • Can also be added to App-level ResourceDictionary
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  Styles 3/3 • DynamicResourcebehave like data- binding, and support Apple’s Dynamic Type (size) rendering • Triggers & Behaviors can be added to styles
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  Triggers 1/3 • VisualElements can react to events and property changes • “conditional style” - CP • Can be added in C# • Types:  Trigger  EventTrigger  DataTrigger  MultiTrigger OR OR
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  Triggers 2/3 • TheEventTrigger has Event instead of Property • TriggerAction is written in C# • Remember xmlns:
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  Triggers 3/3 • DataTriggerscan bind to other controls (Binding instead of Property)
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  Behaviors 1/2 • Addfunctionality to visual elements without subclassing
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  Behaviors 2/2 • Addfunctionality to visual elements without subclassing • Can participate in data-binding
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  Navigation Stack • Allowediting of the stack beyond push/pop off the top • New features:  RemovePage  InsertPageBefore  NavigationStack[] • Animation can be disabled! InsertPageBefore RemovePage Push/Pop
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  Other highlights • Page.OnBackButtonPressedto allow intercepting physical back button • Map.Pin response to Clicked after bubble is displayed • Star (*) is the default grid size • ListView has context-actions (eg. side-swipe buttons in iOS) Release Notes: http://forums.xamarin.com/discussion/29934/xamarin-forms-1-3-0-released/p1 • MasterDetailPage now has  ShouldShowToolbarButton  MasterBehaviour • iOS 64-bit support see the release notes for more!
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  Questions? Craig Dunn craig@xamarin.com http://developer.xamarin.com/guides/cross-platform/xamarin-forms/ https://github.com/xamarin/xamarin-forms-samples WorkingWith Fonts,Styles, Triggers, Behaviors, Navigation