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Файл:lawrence_shaun_introducing_net_maui_build_and_deploy_crosspl.pdf
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- •Table of Contents
- •About the Author
- •About the Technical Reviewer
- •Acknowledgments
- •Introduction
- •What is .NET MAUI?
- •Digging a Bit Deeper
- •Where Did It Come From?
- •How It Differs From the Competition
- •Why Use .NET MAUI?
- •Supported Platforms
- •Code Sharing
- •Developer Freedom
- •Community
- •Fast Development Cycle
- •.NET Hot Reload
- •XAML Hot Reload
- •Performance
- •Strong Commercial Offerings
- •Limitations of .NET MAUI
- •No Web Assembly (WASM) Support
- •No Camera API
- •Apps Won’t Look Identical on Each Platform
- •Lack of Media Playback Out of the Box
- •The Glass Is Half Full, Though
- •How to Build .NET MAUI Applications
- •Visual Studio
- •Visual Studio (Windows)
- •Visual Studio for Mac
- •Rider
- •Visual Studio Code
- •Summary
- •Setting Up Your Environment
- •macOS
- •Visual Studio for Mac
- •Xcode
- •Remote Access
- •Windows
- •Visual Studio
- •Visual Studio to macOS
- •Troubleshooting Installation Issues
- •.NET MAUI Workload Is Missing
- •Visual Studio Installer
- •Command Line
- •Creating Your First Application
- •Creating in Visual Studio
- •Creating in the Command Line
- •Building and Running Your First Application
- •Getting to Know Your Application
- •WidgetBoard
- •Summary
- •Source Code
- •Project Structure
- •/Platforms/ Folder
- •Android
- •MacCatalyst
- •Tizen
- •Windows
- •Summary
- •/Resources/ Folder
- •Fonts
- •Images
- •Generic Host Builder
- •What Is Dependency Injection?
- •Registering Dependencies
- •AddSingleton
- •AddTransient
- •AddScoped
- •Application Lifecycle
- •Application States
- •Lifecycle Events
- •Handling Lifecycle Events
- •Cross-Platform Mappings to Platform Lifecycle Events
- •Platform-Specific Lifecycle Events
- •Android
- •Windows
- •Summary
- •A Measuring Stick
- •Prerequisites
- •Model View ViewModel (MVVM)
- •Model
- •View
- •XAML
- •C# (Code-Behind)
- •ViewModel
- •Model View Update (MVU)
- •Getting Started with Comet
- •Adding Your MVU Implementation
- •XAML vs. C# Markup
- •Plain C#
- •C# Markup
- •Chosen Architecture for This Book
- •Adding IWidgetViewModel
- •Adding BaseViewModel
- •Adding ClockWidgetViewModel
- •Adding Views
- •Adding IWidgetView
- •Adding ClockWidgetView
- •Viewing Your Widget
- •Modifying MainPage.xaml
- •Modifying MainPage.xaml.cs
- •Taking the Application for a Spin
- •MVVM Enhancements
- •MVVM Frameworks
- •Magic
- •Summary
- •Source Code
- •Prerequisites
- •Models
- •BaseLayout.cs
- •FixedLayout.cs
- •Board.cs
- •Pages
- •BoardDetailsPage
- •FixedBoardPage
- •ViewModels
- •AppShellViewModel
- •BoardDetailsPageViewModel
- •FixedBoardPageViewModel
- •App Icons
- •Adding Your Own Icon
- •Platform Differences
- •Android
- •Splash Screen
- •XAML
- •Dissecting a XAML File
- •Building Your First XAML Page
- •Layouts
- •AbsoluteLayout
- •FlexLayout
- •Grid
- •HorizontalStackLayout
- •VerticalStackLayout
- •Data Binding
- •Binding
- •BindingContext
- •Path
- •Mode
- •Source
- •Applying the Remaining Bindings
- •MultiBinding
- •Command
- •Compiled Bindings
- •Shell
- •ShellContent
- •Navigation
- •Registering Pages for Navigation
- •Performing Navigation
- •Navigating Backwards
- •Passing Data When Navigating
- •Flyout
- •FlyoutHeader
- •FlyoutContent
- •Selected Board
- •Navigation to the Selected Board
- •Setting the BindingContext of Your AppShell
- •Register AppShell with the MAUI App Builder
- •Resolve the AppShell Instead of Creating It
- •Tabs
- •Search
- •Taking Your Application for a Spin
- •Summary
- •Source Code
- •Extra Assignment
- •Placeholder
- •ILayoutManager
- •BoardLayout
- •BoardLayout.xaml
- •BindableLayout
- •BoardLayout.xaml.cs
- •Adding the LayoutManager Property
- •Adding the ItemsSource Property
- •Adding the ItemTemplateSelector Property
- •Handling the ChildAdded Event
- •Adding Remaining Bits
- •FixedLayoutManager
- •Accepting the Number of Rows and Columns for a Board
- •Adding the NumberOfColumns Property
- •Adding the NumberOfRows Property
- •Building the Board Layout
- •Setting the Correct Row/Column Position for Each Widget
- •Using Your Layout
- •Allowing for the Registration of Widget Views and View Models
- •Creation of a Widget View
- •Creation of a Widget View Model
- •Registering the Factory with MauiAppBuilder
- •Registering Your ClockWidget with the Factory
- •WidgetTemplateSelector
- •Registering the Template Selector with MauiAppBuilder
- •Updating FixedBoardPageViewModel
- •Finally Using the Layout
- •Summary
- •Source Code
- •Extra Assignment
- •What Is Accessibility?
- •Why Make Your Applications Accessible?
- •What to Consider When Making Your Applications Accessible
- •How to Make Your Application Accessible
- •Screen Reader Support
- •SemanticProperties
- •SemanticProperties.Description
- •SemanticProperties.Hint
- •SemanticProperties.HeadingLevel
- •SemanticScreenReader
- •AutomationProperties
- •AutomationProperties.ExcludedWithChildren
- •AutomationProperties.IsInAccessibleTree
- •Suitable Contrast
- •Dynamic Text Sizing
- •Avoiding Fixed Sizes
- •Preferring Minimum Sizing
- •Font Auto Scaling
- •Testing Your Application’s Accessibility
- •Android
- •macOS
- •Windows
- •Accessibility Checklist
- •Summary
- •Source Code
- •Extra Assignment
- •Adding the Ability to Add a Widget to a Board
- •Possible Ways of Achieving Your Goal
- •Showing a Modal Page
- •The Chosen Approach
- •Adding Your Overlay View
- •Updating Your View Model
- •Showing the Overlay View
- •Styling
- •Examining the Default Styles
- •TargetType
- •ApplyToDerivedTypes
- •Setter
- •AppThemeBinding
- •Further Reading
- •Triggers
- •Creating ShowOverlayTriggerAction
- •Using ShowOverlayTriggerAction
- •Further Reading
- •Animations
- •Basic Animations
- •Combining Basic Animations
- •Chaining Animations
- •Concurrent Animations
- •Cancelling Animations
- •Easings
- •Complex Animations
- •Recreating the ScaleTo Animation
- •Creating a Rubber Band Animation
- •Combining Triggers and Animations
- •Summary
- •Source Code
- •Extra Assignment
- •Animate the BoxView Overlay
- •Animate the New Widget
- •What Is Local Data?
- •File System
- •Cache Directory
- •App Data Directory
- •Database
- •Repository Pattern
- •Listing Your Boards
- •SQLite
- •Installing SQLite-net
- •Using Sqlite-net
- •Connecting to an SQLite database
- •Mapping Your Models
- •Creating Your Tables
- •Inserting into an SQLite Database
- •Reading a Collection from an SQLite Database
- •Reading a Single Entity from an SQLite Database
- •Deleting from an SQLite Database
- •Updating an Entity in an SQLite Database
- •LiteDB
- •Installing LiteDB
- •Using LiteDB
- •Connecting to a LiteDB database
- •Mapping Your Models
- •Creating Your Tables
- •Inserting into a LiteDB Database
- •Reading a Collection from a LiteDB Database
- •Reading a Single Entity from a LiteDB Database
- •Deleting from a LiteDB Database
- •Updating an Entity in a LiteDB Database
- •Database Summary
- •Application Settings (Preferences)
- •What Can Be Stored in Preferences?
- •Setting a Value in Preferences
- •Getting a Value in Preferences
- •Checking if a Key Exists in Preferences
- •Secure Storage
- •Storing a Value Securely
- •Reading a Secure Value
- •Removing a Secure Value
- •Platform specifics
- •Android
- •Windows
- •Summary
- •Source Code
- •Extra Assignment
- •What Is Remote Data?
- •Considerations When Handling Remote Data
- •Loading Times
- •Failures
- •Security
- •Webservices
- •The Open Weather API
- •Creating an Open Weather Account
- •Creating an Open Weather API key
- •Using System.Text.Json
- •Creating Your Models
- •Connecting to the Open Weather API
- •Registering Your Widget
- •Testing Your Widget
- •Adding Some State
- •Converting the State to UI
- •Displaying the Loading State
- •Displaying the Loaded State
- •Displaying the Error State
- •Simplifying Webservice Access
- •Prebuilt Libraries
- •Code Generation Libraries
- •Adding the Refit NuGet Package
- •Further Reading
- •Polly
- •Summary
- •Source Code
- •Extra Assignment
- •TODO Widget
- •Quote of the Day Widget
- •NASA Space Image of the Day Widget
- •.NET MAUI Essentials
- •Permissions
- •Checking the Status of a Permission
- •Requesting Permission
- •Handling Permissions in Your Application
- •Using the Geolocation API
- •Registering the Geolocation Service
- •Using the Geolocation Service
- •Displaying Permission Errors to Your User
- •Configuring Platform-Specific Components
- •Android
- •Windows
- •Platform-Specific API Access
- •Platform-Specific Code with Compiler Directives
- •Platform-Specific Code in Platform Folders
- •Overriding the Platform-Specific UI
- •OnPlatform
- •OnPlatform Markup Extension
- •Conditional Statements
- •Handlers
- •Customizing Controls with Mappers
- •Scoping of Mapper Customization
- •Further Reading
- •Summary
- •Source Code
- •Extra Assignment
- •Barometer Widget
- •Geocoding Lookup
- •Unit Testing
- •Unit Testing in .NET MAUI
- •xUnit
- •NUnit
- •MSTest
- •Your Chosen Testing Framework
- •Adding Your Own Unit Tests
- •Adding a Unit Test Project to Your Solution
- •Modify Your Application Project to Target net7.0
- •Adding a Reference to the Project to Test
- •Modify Your Test Project to Use MAUI Dependencies
- •Testing Your View Models
- •Testing BoardDetailsPageViewModel
- •Testing INotifyPropertyChanged
- •Testing Asynchronous Operations
- •Creating Your ILocationService Mock
- •Creating Your WeatherForecastService Mock
- •Creating Your Asynchronous Tests
- •Testing Your Views
- •Creating Your ClockWidgetViewModel Mock
- •Creating Your View Tests
- •Device Testing
- •Creating a Device Test Project
- •Adding a Device-Specific Test
- •Running Device-Specific Tests
- •Snapshot Testing
- •Snapshot Testing Your Application
- •Passing Thoughts
- •Summary
- •Source Code
- •.NET MAUI Graphics
- •Maintaining the State of the Canvas
- •Further Reading
- •Building a Sketch Widget
- •Representing a User Interaction
- •Registering Your Widget
- •Taking Your Widget for a Test Draw
- •Summary
- •Source Code
- •Extra Assignment
- •Distributing Your Application
- •Android
- •Additional Resources
- •Certificate
- •Identifier
- •Capabilities
- •Entitlements
- •Provisioning Profiles
- •Additional Resources
- •macOS
- •Additional Resources
- •Windows
- •Additional Resources
- •Following Good Practices
- •Performance
- •Startup Tracing
- •Image Sizes
- •Linking
- •What Is Linking?
- •Issues That Crop Up
- •Crashes/Analytics
- •Sentry
- •App Center
- •Obfuscation
- •Distributing Test Versions
- •Summary
- •Looking at the Final Product
- •Taking the Project Further
- •Useful Resources
- •StackOverflow
- •GitHub
- •YouTube
- •Gerald Versluis
- •James Montemagno
- •Social Media
- •Yet More Goodness
- •Looking Forward
- •Comet
- •Testing
- •Index
Chapter 13 Lets Get Graphical
Extra Assignment
Think of another concept where you can use .NET MAUI graphics. Maybe the chart control idea I discussed or even just showing the battery level in a widget or other device information.
406
PART V
Finishing Our
Application
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