Flutter: JSON Parser example & CROS issue
Flutter的Json處理真是有夠難... 看了老半天還是看不太懂, 挫折感重重. 他有兩套方法一個是dart內建的 dart:convert ,另一個是套件,其號稱較容易處理複雜的JSON結構. === 一個外國網友說: I have to admit, I was missing the gson world of Android after working with JSON in Flutter/Dart. When I started working with APIs in Flutter, JSON parsing really had me struggle a lot. And I’m certain, it confuses a lot of you beginners. by Pooja Bhaumik 大家可以去讀這篇json parse in flutter文章 ps:額外閱讀: 30天Flutter手滑系列 - JSON與序列化(JSON and serialization) --- Is there a GSON/ Jackson/ Moshi equivalent in Flutter? The simple answer is no. 似乎是因為 程式庫 反射(run-time reflection)的關係,使得Flutter 無法對其做檔案最小化. ---- 在android我們用gson太久,太方便,所以被寵壞了. 一換到flutter後,沒有gson,我們就不會用了. 寫程式這種技能,就跟啃饅頭一樣,很簡單,但你還得一口一口慢慢啃完. 對,沒有自己寫出一段json parser範例code,你就是算不會他. 一定要自己寫出來,結果有跑出來才算,然後在熟習其用法.等到真實專案遇到了就不會害怕. --- Flutter有內建 d art:convert library可用來parse JSON. "為較小的項目使用手動序列化數據",但這是一個很基本的library. Basic JSON serialization in Flutter is very simple. Flutter has a built-in dart:convert library that includes