# DevFest Koahsiung 2019 - 在導入 Flutter 之前,你應該知道什麼? ###### tags: `技術分享` `DevFest Koahsiung` `Flutter` ## 怎樣學 Flutter 1. 建置環境,安裝 IDE 與 SDK 2. 學習 Dart 程式語言與慣例 3. 動手寫一個 Flutter App 上手 4. 熟悉 Flutter Widget 5. 熟悉 Flutter 的重要 Pattern 與更新機制 6. 練習寫 Dart Package 7. 練習寫 Flutter Plugin ## 學習 Dart 語言 * Learn X in Y minutes https://learnxinyminutes.com/docs/dart/ * Dart Pad(線上練習) https://dartpad.dartlang.org/ * Exercism(不只有 Dart) https://exercism.io/ * Effective Dart https://dart.dev/guides/language/effective-dart ## 動手寫一個 Flutter App * 官網教學 https://flutter.dev/docs/get-started/codelab * <Flutter實戰>第二章 https://book.flutterchina.club/chapter2/ ## Flutter Widget * https://flutter.dev/docs/reference/widgets * https://flutter.dev/docs/development/ui/widgets * https://api.flutter.dev/flutter/widgets/widgets-library.html * <Flutter實戰>第三~十章 ## Flutter 的 Pattern  ### Flutter Design Patterns #### Pattern 就是物件之間的關係 * 不該有關係的就不要有關係 * [Facade](https://medium.com/flutter-community/flutter-design-patterns-7-facade-eb40434fb973):某個 Class 包含了多個子系統,其他人都經過這個介面,避免外與子系統發生關係 * [Singleton](https://medium.com/flutter-community/flutter-design-patterns-1-singleton-437f04e923ce):某個 Class 只有一個instance,其他人都 access這個instance的多對一關係 * [Delegate](https://carsonwah.github.io/delegation-pattern.html):某個 Class 自己不做事,交給另外一個物件的一對一關係
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