Résumer

Contents About ................................................................................................................................................................................... 1 Chapter 1: Getting started with Xamarin.Forms ........................................................................................... 2 Section 1.1: Installation (Visual Studio) ......................................................................................................................... 2 Section 1.2: Hello World Xamarin Forms: Visual Studio ............................................................................................. 4 Chapter 2: Why Xamarin Forms and When to use Xamarin Forms .................................................... 7 Section 2.1: Why Xamarin Forms and When to use Xamarin Forms ....................................................................... 7 Chapter 3: Xamarin Forms Layouts .................................................................................................................... 8 Section 3.1: AbsoluteLayout .......................................................................................................................................... 8 Section 3.2: Grid ........................................................................................................................................................... 10 Section 3.3: ContentPresenter .................................................................................................................................... 11 Section 3.4: ContentView ............................................................................................................................................ 12 Section 3.5: ScrollView ................................................................................................................................................ 13 Section 3.6: Frame ....................................................................................................................................................... 14 Section 3.7: TemplatedView ....................................................................................................................................... 14 Section 3.8: RelativeLayout ........................................................................................................................................ 15 Section 3.9: StackLayout ............................................................................................................................................ 16 Chapter 4: Xamarin Relative Layout ............................................................................................................... 19 Section 4.1: Box after box ........................................................................................................................................... 19 Section 4.2: Page with an simple label on the middle ............................................................................................. 21 Chapter 5: Navigation in Xamarin.Forms ....................................................................................................... 23 Section 5.1: NavigationPage flow with XAML ............................................................................................................ 23 Section 5.2: NavigationPage flow .............................................................................................................................. 24 Section 5.3: Master Detail Navigation ....................................................................................................................... 25 Section 5.4: Using INavigation from view model ..................................................................................................... 26 Section 5.5: Master Detail Root Page ........................................................................................................................ 28 Section 5.6: Hierarchical navigation with XAML ....................................................................................................... 29 Section 5.7: Modal navigation with XAML ................................................................................................................. 31 Chapter 6: Xamarin.Forms Page ........................................................................................................................ 32 Section 6.1: TabbedPage ............................................................................................................................................ 32 Section 6.2: ContentPage ........................................................................................................................................... 33 Section 6.3: MasterDetailPage ................................................................................................................................... 34 Chapter 7: Xamarin.Forms Cells ......................................................................................................................... 36 Section 7.1: EntryCell ................................................................................................................................................... 36 Section 7.2: SwitchCell ................................................................................................................................................. 36 Section 7.3: TextCell .................................................................................................................................................... 37 Section 7.4: ImageCell ................................................................................................................................................. 38 Section 7.5: ViewCell .................................................................................................................................................... 39 Chapter 8: Xamarin.Forms Views ....................................................................................................................... 41 Section 8.1: Button ....................................................................................................................................................... 41 Section 8.2: DatePicker ............................................................................................................................................... 42 Section 8.3: Entry ......................................................................................................................................................... 43 Section 8.4: Editor ........................................................................................................................................................ 43 Section 8.5: Image ....................................................................................................................................................... 44 Section 8.6: Label ........................................................................................................................................................ 45 Chapter 9: Using ListViews ..................................................................................................................................... 47 Section 9.1: Pull to Refresh in XAML and Code behind ............................................................................................ 47 Chapter 10: Display Alert ........................................................................................................................................ 48 Section 10.1: DisplayAlert ............................................................................................................................................ 48 Section 10.2: Alert Example with only one button and action ................................................................................. 49 Chapter 11: Accessing native features with DependencyService ....................................................... 50 Section 11.1: Implementing text-to-speech ................................................................................................................ 50 Section 11.2: Getting Application and Device OS Version Numbers - Android & iOS - PCL ................................. 53 Chapter 12: DependencyService ......................................................................................................................... 55 Section 12.1: Android implementation ........................................................................................................................ 55 Section 12.2: Interface ................................................................................................................................................. 56 Section 12.3: iOS implementation ............................................................................................................................... 56 Section 12.4: Shared code ........................................................................................................................................... 57 Chapter 13: Custom Renderers ............................................................................................................................ 58 Section 13.1: Accessing renderer from a native project ........................................................................................... 58 Section 13.2: Rounded label with a custom renderer for Frame (PCL & iOS parts) ............................................. 58 Section 13.3: Custom renderer for ListView .............................................................................................................. 59 Section 13.4: Custom Renderer for BoxView ............................................................................................................. 61 Section 13.5: Rounded BoxView with selectable background color ....................................................................... 65 Chapter 14: Caching .................................................................................................................................................. 68 Section 14.1: Caching using Akavache ....................................................................................................................... 68 Chapter 15: Gestures ................................................................................................................................................. 70 Section 15.1: Make an Image tappable by adding a TapGestureRecognizer ....................................................... 70 Section 15.2: Gesture Event ......................................................................................................................................... 70 Section 15.3: Zoom an Image with the Pinch gesture .............................................................................................. 78 Section 15.4: Show all of the zoomed Image content with the PanGestureRecognizer ....................................... 78 Section 15.5: Tap Gesture ........................................................................................................................................... 79 Section 15.6: Place a pin where the user touched the screen with MR.Gestures .................................................. 79 Chapter 16: Data Binding ........................................................................................................................................ 81 Section 16.1: Basic Binding to ViewModel .................................................................................................................. 81 Chapter 17: Working with Maps ........................................................................................................................... 83 Section 17.1: Adding a map in Xamarin.Forms (Xamarin Studio) ........................................................................... 83 Chapter 18: Custom Fonts in Styles ................................................................................................................... 92 Section 18.1: Accessing custom Fonts in Syles .......................................................................................................... 92 Chapter 19: Push Notifications ............................................................................................................................. 94 Section 19.1: Push notifications for Android with Azure ........................................................................................... 94 Section 19.2: Push notifications for iOS with Azure .................................................................................................. 96 Section 19.3: iOS Example ........................................................................................................................................... 99 Chapter 20: Eects .................................................................................................................................................. 101 Section 20.1: Adding platform specific Eect for an Entry control ...................................................................... 101 Chapter 21: Triggers & Behaviours .................................................................................................................. 105 Section 21.1: Xamarin Forms Trigger Example ....................................................................................................... 105 Section 21.2: Multi Triggers ....................................................................................................................................... 106 Chapter 22: AppSettings Reader in Xamarin.Forms .............................................................................. 107 Section 22.1: Reading app.config file in a Xamarin.Forms Xaml project ............................................................. 107 Chapter 23: Creating custom controls ........................................................................................................... 108 Section 23.1: Label with bindable collection of Spans ........................................................................................... 108 Section 23.2: Implementing a CheckBox Control ................................................................................................... 110 Section 23.3: Create an Xamarin Forms custom input control (no native required) ......................................... 116 Section 23.4: Creating a custom Entry control with a MaxLength property ....................................................... 118 Section 23.5: Creating custom Button ..................................................................................................................... 119 Chapter 24: Working with local databases ................................................................................................ 121 Section 24.1: Using SQLite.NET in a Shared Project ............................................................................................... 121 Section 24.2: Working with local databases using xamarin.forms in visual studio 2015 ................................... 123 Chapter 25: CarouselView - Pre-release version ..................................................................................... 133 Section 25.1: Import CarouselView .......................................................................................................................... 133 Section 25.2: Import CarouselView into a XAML Page .......................................................................................... 133 Chapter 26: Exception handling ........................................................................................................................ 135 Section 26.1: One way to report about exceptions on iOS .................................................................................... 135 Chapter 27: SQL Database and API in Xamarin Forms. ........................................................................ 137 Section 27.1: Create API using SQL database and implement in Xamarin forms, .............................................. 137 Chapter 28: Contact Picker - Xamarin Forms (Android and iOS) .................................................... 138 Section 28.1: contact_picker.cs ................................................................................................................................ 138 Section 28.2: MyPage.cs ........................................................................................................................................... 138 Section 28.3: ChooseContactPicker.cs .................................................................................................................... 139 Section 28.4: ChooseContactActivity.cs .................................................................................................................. 139 Section 28.5: MainActivity.cs .................................................................................................................................... 140 Section 28.6: ChooseContactRenderer.cs ............................................................................................................... 141 Chapter 29: Xamarin Plugin ................................................................................................................................ 144 Section 29.1: Media Plugin ........................................................................................................................................ 144 Section 29.2: Share Plugin ........................................................................................................................................ 146 Section 29.3: ExternalMaps ...................................................................................................................................... 147 Section 29.4: Geolocator Plugin ............................................................................................................................... 148 Section 29.5: Messaging Plugin ............................................................................................................................... 150 Section 29.6: Permissions Plugin .............................................................................................................................. 151 Chapter 30: OAuth2 ................................................................................................................................................. 155 Section 30.1: Authentication by using Plugin .......................................................................................................... 155 Chapter 31: MessagingCenter ............................................................................................................................. 157 Section 31.1: Simple example .................................................................................................................................... 157 Section 31.2: Passing arguments ............................................................................................................................. 157 Section 31.3: Unsubscribing ...................................................................................................................................... 158 Chapter 32: Generic Xamarin.Forms app lifecycle? Platform-dependant! ................................ 159 Section 32.1: Xamarin.Forms lifecycle is not the actual app lifecycle but a cross-platform representation of it .......................................................................................................................................................................... 159 Chapter 33: Platform-specific behaviour ..................................................................................................... 161 Section 33.1: Removing icon in navigation header in Anroid ................................................................................ 161 Section 33.2: Make label's font size smaller in iOS ................................................................................................ 161 Chapter 34: Platform specific visual adjustments .................................................................................. 163 Section 34.1: Idiom adjustments ............................................................................................................................... 163 Section 34.2: Platform adjustments ........................................................................................................................ 163 Section 34.3: Using styles ......................................................................................................................................... 164 Section 34.4: Using custom views ............................................................................................................................ 164 Chapter 35: Dependency Services ................................................................................................................... 165 Section 35.1: Access Camera and Gallery ............................................................................................................... 165 Chapter 36: Unit Testing ....................................................................................................................................... 166 Section 36.1: Testing the view models ..................................................................................................................... 166 Chapter 37: BDD Unit Testing in Xamarin.Forms ..................................................................................... 172 Section 37.1: Simple Specflow to test commands and navigation with NUnit Test Runner .............................. 172 Section 37.2: Advanced Usage for MVVM .............................................................................................................. 174 Credits ............................................................................................................................................................................ 175 You may also like ...................................................................................................................................................... 176

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