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Programming Flutter

Paperback Engels 2020 9781680506952
Verkooppositie 2525
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Samenvatting

Work in Flutter, a framework designed from the ground up for dual platform development, with support for native Java/Kotlin or Objective-C/Swift methods from Flutter apps. Write your next app in one language and build it for both Android and iOS. Deliver the native look, feel, and performance you and your users expect from an app written with each platform's own tools and languages.

Deliver apps fast, doing half the work you were doing before and exploiting powerful new features to speed up development. Write once, run anywhere. Learn Flutter, Google's multi-platform mobile development framework.

Instantly view the changes you make to an app with stateful hot reload and define a declarative UI in the same language as the app logic, without having to use separate XML UI files. You can also reuse existing platform-specific Android and iOS code and interact with it in an efficient and simple way. Use built-in UI elements - or build your own - to create a simple calculator app.

Run native Java/Kotlin or Objective-C/Swift methods from your Flutter apps, and use a Flutter package to make HTTP requests to a Web API or to perform read and write operations on local storage. Apply visual effects to widgets, create transitions and animations, create a chat app using Firebase, and deploy everything on both platforms. Get native look and feel and performance in your Android and iOS apps, and the ability to build for both platforms from a single code base.

What You Need:Flutter can be used for Android development on any Linux, Windows or macOS computer, but macOS is needed for iOS development.

Specificaties

ISBN13:9781680506952
Trefwoorden:Programmeren, Flutter
Taal:Engels
Bindwijze:paperback
Aantal pagina's:275
Druk:1
Verschijningsdatum:10-3-2020
Hoofdrubriek:IT-management / ICT

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Over Carmine Zaccagnino

Carmine Zaccagnino is a web and mobile developer and has struggled for years building Android apps using the standard SDK and, in a lesser way, Web-based tools. His experience in development areas other than mobile development has led him to be particularly bothered by the lack of a native (or close to native) framework that can bridge together Android and iOS without losing low-level access to hardware and software, until Flutter did exactly what was needed.

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Inhoudsopgave

Getting Started with Flutter
Making Your First Flutter App
-Get Familiar with Dart Syntax and Flutter ClassesGive the App Your Personal Touch excerpt
-Where We’re Going Next

Laying Out More Widgets
-Introducing Layout Widgets
-Contain and Add Padding to Widgets Using Invisible Layout Widgets
-Add Your Own Assets to the App
-Displaying Images
-Vertical Layout
-Horizontal Layout: The RowMaking Grids
-The Card
-Fill the Space Available in the View Using Expanded
-Slivers, Custom Scrollables, and Collapsable App Bars
-The Key
-Where We’re Going Next

Building a Calculator App excerpt
-Importing Basic Dependencies
-Writing main
-The Calculator’s Home Page
-How the App Will Be Structured
-Implement the Basic Layout
-Let’s Give the Calculator a Screen
-Add the Deletion Row
-The Third Row
-Why a GridView Wouldn’t Work
-Make the App Look and Work Right with Expanded
-The Finished Layout
-Implement the Calculations
-Use the Calculation Inside the App
-Wrapping Up the Calculator
-What If We Try to Divide by 0?
-Where We’re Going Next

Beyond the Standard Library: Plugins and Packages
-An Introduction to PackagesPackage Usage Example
-Making Your Own Packages
-Publishing a Package to Pub
-Packages for Windows, macOS, and Linux
-Where We’re Going Next

Doing More with Flutter
Network and Storage I/O and Navigation
-The API
-The http Package
-Writing Methods to Fetch Comics
-What You Need to Build the UI: Navigation and the InheritedWidget excerpt
-Build the App’s Basic UI
-Building the Comic Page
-Using the CircularProgressIndicator
-Making Everything Faster by Caching to Local Storage
-Allowing the User to Click the Image and Go to the Website: The url_launcher Package
-Adding Comic Selection by Number
-Permanent Data I/O in Flutter: Adding “Starred” Comics
-Where We’re Going Next

Testing and Debugging Flutter Apps
-Testing
-Testing the XKCD App: Using Mock Objects
-Throwing and Catching Exceptions
-Assert Statements
-Where We’re Going Next

Build a Chat App Using Firebase
-What Is Firebase?
-Animations and Transistions
-Custom Shapes and Drawing in Flutter Apps Using Painters
-The StreamBuilderBuilding the Chat App
-Where You’re Going Next

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