FLUTTER implements the resolve function in Promise

BehaviorSubject openCameraController = BehaviorSubject();

 BridgeChannel _openCamera() {

 print(‘------------------> _openCamera() ‘);

 return BridgeChannel(

 name: ‘openCamera’,

 onBridgeHandler: (dataFromJs) async {

 print('------------------> _openCamera() send event'+dataFromJs );

 EventBus().post(OpenCameraEvent(dataFromJs));

 print(‘------------------222> openCameraController.listen2 ‘);

 return await doSome();

}

 );

}



 Future doSome() async {

 var a = new Future(() => null);

 openCameraController.listen((resul) {

 print(‘------------------> openCameraController.listen ‘+resul);

 //return result = resul;

 //call('dart2Js', resul);

 a.then((_) => resul);

 });

 return a ;

 }

BehaviorSubject openCameraController = BehaviorSubject();

 BridgeChannel _openCamera() {

 print(‘------------------> _openCamera() ‘);

 return BridgeChannel(

 name: ‘openCamera’,

 onBridgeHandler: (dataFromJs) async {

 print('------------------> _openCamera() send event'+dataFromJs );

 EventBus().post(OpenCameraEvent(dataFromJs));

 print(‘------------------222> openCameraController.listen2 ‘);

 return await doSome();

}

 );

}



 Future doSome() async {

 var a = new Future(() => null);

 openCameraController.listen((resul) {

 print(‘------------------> openCameraController.listen ‘+resul);

 //return result = resul;

 //call('dart2Js', resul);

 a.then((_) => resul);

 });

 return a ;

 }