Developing cross platform apps in Flutter (Android, iOS, and Web)
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Learn how to get started with building cross-platform mobile apps using Flutter framework. Checkout the YouTube video: https://youtu.be/NRoZUVrbwPM
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Developing cross platform apps in Flutter (Android, iOS, and Web)
- 1. Developing Cross-Platform Apps in Flutter ~ Priyanka Tyagi
- 2. ¡°Cross-platform development is the ability to build and deliver apps that can run across multiple device platforms.¡±
- 3. Agenda 1. Challenges 2. How Flutter helps ? 3. What is Flutter ? 4. Cross-platform Flutter project 5. Anatomy of Flutter app 6. Deployment options
- 4. Challenges
- 6. Screen-form factors + Devices + Platforms = Interesting developers¡¯ life :)
- 7. Credits
- 8. Hard for Solo developer to reach out to all platforms
- 10. How Flutter helps ?
- 11. ¡ñ Code sharing across multiple platforms ¡ñ One code editor for all platforms ¡ñ Own widgets, not dependent on OEM Widgets ¡ñ Great for Custom designs ¡ñ Decent built-in widget library of Material Design and Cupertino (iOS) widgets ¡ñ Code once, Deploy thrice !
- 12. What is Flutter ?
- 13. ¡ñ Open-sourced SDK to develop cross-platform applications (by Google) ¡ñ Flutter apps are written in Dart language ¡ñ Flutter is a complete framework which provides: ¡ð UI rendering & Widgets ¡ð State Management ¡ð Hardware APIs ¡ð Navigation ¡ð Testing
- 15. Flutter community Stats ¡ñ StackOver?ow : ~23K questions ¡ñ Github issues : ~7.5K open issues ¡ñ Github stars : ~74K ¡ñ Gitter : ~9K ¡ñ Reddit FlutterDev : 20.5K Source: Google Blog
- 16. Native SDKs Separate apps for each platform Platform speci?c Widgets Different languages Source: Hackernoon
- 17. JS + WebViews PhoneGap (Adobe) Apache Cordova Ionic Source: Hackernoon
- 18. Reactive Views React Native (2015) Reactive-style views for mobile apps Context switching: JS realm ? Native realm Source: Hackernoon
- 19. Flutter (2017) Reactive-style views Dart compiles AOT into native code for multiple platforms No JS Bridge needed Source: Hackernoon
- 21. Download & Setup Flutter Source
- 25. CLI (Command Line Interface)
- 26. Cross-platform Flutter Project Structure Android iOS Shared code Web
- 28. web/index.html
- 30. Running Flutter project flutter run Android Studio CLI flutter run -d Chrome
- 31. iOS simulator Android emulator Chrome
- 32. Anatomy of Flutter App
- 33. Scaffold AppBar Text Center Column Text Text FAB Icon title You have pushed the button... Counter A B C A C B
- 34. Stateless Widget Text Icon Card Stateful Widget Checkbox Radio TextField ¡ñ Immutable ¡ñ Widgets can not be redrawn ¡ñ `build()` method is called only once ¡ñ Mutable. ¡ñ Rebuilds several time over its lifetime ¡ñ `build()` method is called multiple times
- 35. ¡ñ Immutable ¡ñ Widgets can not be redrawn ¡ñ `build()` method is called only once ¡ñ Mutable. ¡ñ Rebuilds several time over its lifetime ¡ñ `build()` method is called multiple times Stateless Widget Stateful Widget
- 36. `main.dart`
- 38. Unit Testing Running test: flutter test test/widget_test.dart test/widget_test.dart
- 39. Flutter Web : In technical preview Source: https://?utter.dev/web Until Sept- 1st week Updated: Sept- 2nd week
- 40. Caveats ¡ñ Flutter Web is (~was) a fork of Flutter Repo ¡ñ Not all plugins are available for Web in Dart Packages repo: pub like FlutterFire ¡ñ A set of libraries are platform speci?c ¡ð dart:html: DOM manipulation for web apps. ¡ð dart:io: I/O for non-web apps.
- 41. Launching URL Code Organization Handling Unsupported Platforms
- 42. Source code
- 43. Custom Fonts ¡ñ Download font ¡ñ `pubspec.yaml` Using custom font
- 46. Command Line Tools ¡ñ flutter doctor: ¡ð Checks if your machine has all the needed packages and software to build ?utter apps. ¡ñ flutter create: ¡ð Generates new ?utter app ¡ñ flutter build: ¡ð Builds ?utter app ¡ñ flutter run: ¡ð Run ?utter app on attached device
- 47. Available Commands: `flutter help`
- 48. Android Studio: Flutter plugin
- 49. Android Studio: Live Templates
- 52. Deploying Flutter Web App ¡ñ Generate contents in ¡°build/¡± directory: ¡ð `flutter build web` ¡ñ Hosting compiled contents: ¡ð Copy contents from ¡°build/web¡± directory to hosting directory ¡°public/¡±
- 53. Deploying Flutter Native Apps ¡ñ Manually ¡ñ Fastlane (CD) + Travis/Cirrus (CI) ¡ñ CodeMagic (CI/CD) ¡ñ BitRise (CI/CD) ¡ñ CircleCI
- 54. Codemagic (CI/CD) ¡ñ Build ¡ñ Test ¡ñ Deliver Pricing
- 55. Bitrise (CI/CD) ¡ñ Build ¡ñ Test ¡ñ Deliver Pricing
- 56. Exploring Flutter Samples code
- 57. flutter create --sample=<id> <your_app_name> lowercase_with_underscores Creating app from Flutter samples
- 58. How to get sample ids ? flutter create --list-samples=samples.json { "sourcePath": "lib/src/material/switch_list_tile.dart", "sourceLine": 255, "serial": "2", "package": "flutter", "library": "material", "element": "SwitchListTile", "id": "material.SwitchListTile.2", "file": "material.SwitchListTile.2.dart", "description": "nnHere is an example of a custom labeled radio widget, callednLinkedLabelRadio, that includes an interactive [RichText] widget thatnhandles tap gestures." },
- 59. Creating app from Flutter sample id Run "flutter doctor" for information about installing additional components. In order to run your sample application, type: $ cd svcc19_switch_list_tile $ flutter run Your sample application code is in svcc19_switch_list_tile/lib/main.dart. flutter create --sample=material.SwitchListTile.2 svcc19_switch_list_tile 1 2 3
- 62. Observatory debugger / pro?ler ¡ñ $ flutter run -d all An Observatory debugger and pro?ler on Android SDK built for x86 is available at: http://127.0.0.1:52118/b2c0_v_ywns=/ An Observatory debugger and pro?ler on iPhone X? is available at: http://127.0.0.1:52161/MDl88nhIz78=/
- 63. Android emulator observatory debugger/ pro?ler
- 64. iOS simulator observatory debugger/ pro?ler
- 65. Dart DevTools Flutter Inspector -> More Actions -> Open DevTools
- 66. 5 months of Flutter...
- 67. Check-out ¡ñ Flutter-to-?y: https://?utter-to-?y.?rebas eapp.com/#/ ¡ñ Github : https://github.com/ptyagic odecamp/x-?utter-landingp age Contact ¡ñ Email: ptyagicodecamp@gmail.com ¡ñ Twitter: @ptyagi13 ¡ñ Blog:https://priyankatyagi.dev Source: Designing Cross platform Flutter prototype for Landing Page (Web-Hummingbird, Android, iOS)
- 68. Check-out ¡ñ Flutter-to-?y: https://?utter-to-?y.?rebas eapp.com/#/ ¡ñ Github : https://github.com/ptyagic odecamp/x-?utter-landingp age Contact ¡ñ Email: ptyagicodecamp@gmail.com ¡ñ Twitter: @ptyagi13 ¡ñ Blog:https://priyankatyagi.dev Part 1: Designing Cross platform Flutter prototype for Landing Page (Web-Hummingbird, Android, iOS) Part 2: Making Cross-platform Flutter Landing Page Responsive (Web-Hummingbird, Android, iOS) Part 3: Using Flutter Themes for Cross-platform Landing Page (Web-Hummingbird, Android, iOS) Part 4: Implementing Flutter FactsBot using DialogFlow Part 5: Migrating to Flutter 1.9: Implementing Cross-platform Firebase Login in Flutter Apps
- 69. Check-out ¡ñ Flutter-to-?y: https://?utter-to-?y.?rebas eapp.com/#/ ¡ñ Github : https://github.com/ptyagic odecamp/x-?utter-landingp age Contact ¡ñ Email: ptyagicodecamp@gmail.com ¡ñ Twitter: @ptyagi13 ¡ñ Blog:https://priyankatyagi.dev
- 70. Useful links ¡ñ Installing Flutter ¡ñ Setting up Flutter-Web project ¡ñ https://api.?utter.dev/ ¡ñ Dart Packages for Flutter ¡ñ Flutter for Web ¡ñ Testing ¡ñ Getting started with Custom Fonts ¡ñ Google Fonts ¡ñ Flutter Inspector ¡ñ Declarative UI: https://flutter.dev/docs/get-started/flutter-for/declarative ¡ñ Why Dart ¡ñ CircleCI setup, Fastlane deployment
- 71. Imagery credits ¡ñ Android, iOS icons , Web icon, Android Studio icon ¡ñ iOS devices, and Android devices ¡ñ Visual Studio icon, IntelliJ Studio icon ¡ñ Team image, money image
- 72. Thank you !