How to load JSON assets into Flutter App

Question

How do I load a JSON asset into my Flutter app?

My pubspec.yaml file has the following:

  assets:
    - assets/data.json

Answer 1

You can use this code :)

loadJson() async {
  String data = await rootBundle.loadString('assets/json/keyboard.json');
  jsonResult = json.decode(data);
  print(jsonResult);
}

Can load on start :)

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      await loadJson();
    });
  }

Need to add the JSON on the asset

flutter:
  uses-material-design: true
  assets:
    - assets/json/keyboard.json