Markdium-Flutter Tabs w/ State Management

Markdium-Dart.dart

  RaisedButton(
      child: Text("Add Item"),
      onPressed: () async {
        final form = _formKey.currentState;
        form.save();
        if (form.validate()) {
          Provider.of(context)
              .add(new Item(_name, num.parse(_price)));
        } else {
          print('validate failed');
        }
        _formKey.currentState.reset();
      })