Lessons Learned: 4 Months of Xamarin.Forms
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This document discusses lessons learned from building apps with Xamarin.Forms. It covers the core components included in Xamarin.Forms like pages, layouts, controls, data binding and navigation. It also provides examples of specific controls and layouts used in one app. Challenges discussed include list editing, creating custom renderers and learning curves. Tips are provided like using MVVM and caching patterns. The document concludes with plans to use more XAML and mobile backend services in future apps.
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Lessons Learned: 4 Months of Xamarin.Forms
- 1. Intro to Xamarin.Forms: Lessons learned Eric Polerecky - @detroitpro
- 2. Building Apps with Xamarin
- 3. Building Apps with Xamarin.Forms
- 4. Xamarin.Forms: What’s in the box Pages Layouts Controls Code behind or XAML Two-Way Data Binding Navigation Animation API Dependency Service Messaging Center
- 5. Xamarin.Forms: What we used Pages Layouts Controls Code behind or XAML Two-Way Data Binding Navigation Animation API Dependency Service Messaging Center
- 6. Xamarin.Forms: Controls ! ActivityIndicator BoxView Button DatePicker Editor Entry Image Label ! ListView Map OpenGLView Picker ProgressBar SearchBar Slider Stepper TableView TimePicker WebView EntryCell ImageCell SwitchCell TextCell ViewCell
- 7. Xamarin.Forms: Controls we used ! ActivityIndicator BoxView Button DatePicker Editor Entry Image Label ! ListView Map OpenGLView Picker ProgressBar SearchBar Slider Stepper TableView TimePicker WebView EntryCell ImageCell SwitchCell TextCell ViewCell
- 10. Xamarin.Forms: Layouts we used
- 11. Demo Time!: TODO: Create App! and REPO!
- 12. Our Application: Wantify Lessons Learned
- 13. What was good Relative Layouts Stack Layouts Custom Renderers Commands/Events
- 14. What was bad List editing Borders Creating custom renderers for components Custom Renderer learning curve List view API learning curve no strong typed context for lists
- 16. Custom Renderers We Built iOS Segmented Control Truncated Label Render Rounded Button Table Separator Style Facebook Login for Component Borderless Entry Strikethrough 17 Total. ! Most controls are very simple and extend basic Xamarin forms functionality.
- 17. Infrastructure we built Local Cache - (in memory) HTTP message handling Navigation Abstraction - goto: Image Cache The Formatter!
- 18. Xamarin Components Raygun4net Azure Messaging Xamarin.Auth
- 19. Tip and Tricks Async/Await all the things Async in OnAppearing Can’t put async in ctor. Get view model/data in OnAppearing and hydrate form controls on page. Strong type: Colors Images Fonts Routes Shared PCL Share mobile PCL with server, holds view models and services to call back to server.
- 20. Non-Forms Awesome Stuff Nuget! Components Xamarin Studio Mono Updates Forums - http://forums.xamarin.com/
- 21. What we want to do more of: MVVM XAML Azure Mobile Services (OAuth, Identity) Auth0
- 23. The End