Flutter based Android app throwing MissingPluginException(No implementation found for method on channel)

Question

I am trying to make the native side of my android app to communicate with Flutter.

This is on the Flutter side:

static const platform = const MethodChannel('getHallInfo');

@override
void initState() {
testing().then((String lst) {
  setState(() {
    if (lst != null) str = lst;
  });
});

super.initState();
}

@override
Widget build(BuildContext context) {
return Column(
  children: <Widget>[Text(str)],
);
}

static Future<String> testing() async {
String lst;
try {
  lst = await platform.invokeMethod('getHalls');
} catch (e) {
  print(e.toString());
}

return lst;
}

And this is on the native Java:

private static final String CHANNEL = "getHallInfo";
super.configureFlutterEngine(getFlutterEngine());
GeneratedPluginRegistrant.registerWith(getFlutterEngine());

new MethodChannel(getFlutterEngine().getDartExecutor().getBinaryMessenger(), CHANNEL).setMethodCallHandler(new MethodChannel.MethodCallHandler() {
        @Override
        public void onMethodCall(MethodCall methodCall, MethodChannel.Result result) {

            if (methodCall.method.equals("getHalls")) {
              String mm= "Succeeded";
              System.out.println("Entered");
                result.success(mm);
            }

        }
    });

My Pubspec.yaml:

name: flutterModule

description: A new flutter module project.

version: 1.0.0+1

environment:
 sdk: ">=2.1.0 <3.0.0"

dependencies:
 flutter:
  sdk: flutter

cupertino_icons: ^0.1.3

flutter_svg: ^0.17.4

google_fonts: ^1.1.0

intl: ^0.16.1

dev_dependencies:
 flutter_test:
  sdk: flutter

flutter:
 uses-material-design: true
assets:
- assets/icons/

module:
 androidX: true
 androidPackage: com.example.flutterModule
 iosBundleIdentifier: com.example.flutterModule

This is the error I get:

MissingPluginException(No implementation found for method getHalls on channel getHallInfo)

Note: "Entered" is shown on the terminal

Edit: These are the things that I tried:

Run flutter clean
Run flutter upgrade
Restart the app

But this exception persists.

@dev-aentgs Yes. The app was working fine until I tried to exchange data between the native part and the Flutter part. Interestingly, the native part receives the correct data but fails to send any. — user2143094
– user2143094, Commented Jul 26, 2020 at 11:57

littleironical · Accepted Answer · 2020-07-26 10:43:36Z

1

Try flutter clean

then flutter upgrade

then flutter run -v

If that doesn't work, have a look at the following issues: issue01, issue02

I hope this will help you

edited Jul 26, 2020 at 10:43

answered Jul 26, 2020 at 9:01

littleironical

1,9541 gold badge14 silver badges29 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

user2143094 Over a year ago

I've followed these steps. The problem is still there.

littleironical Over a year ago

I've added some links. I hope that will help you solve your problem.

user2143094 Over a year ago

I've gone through both links and followed those instructions. But it still throws the same exception.

dev-aentgs · Accepted Answer · 2020-07-26 11:26:44Z

1

you just have to stop the app and restart it again.

make sure you did pub get before you stop your app. use the command .

flutter pub get

edited Jul 26, 2020 at 11:26

dev-aentgs

1,2982 gold badges11 silver badges17 bronze badges

answered Jul 26, 2020 at 8:51

S.R Keshav

2,1011 gold badge14 silver badges15 bronze badges

10 Comments

user2143094 Over a year ago

I've followed these steps. But unfortunately, the problem is still there.

S.R Keshav Over a year ago

try ` flutter clean` in terminal

S.R Keshav Over a year ago

try running - flutter doctor

S.R Keshav Over a year ago

there may be some spelling error in your code or in you might have imported wrong package

S.R Keshav Over a year ago

Try upgrading you package

|

Qasim Ali · Accepted Answer · 2020-07-26 08:54:59Z

0

you just need to run

Flutter clean

then again restart/run your app

answered Jul 26, 2020 at 8:54

Qasim Ali

4442 gold badges6 silver badges36 bronze badges

1 Comment

Qasim Ali Over a year ago

some of the time same error occurs in my projects by using this flutter clean command and restart android studio i solve my problem, may be this is some other important issue, thank for your kind time.

Collectives™ on Stack Overflow

Flutter based Android app throwing MissingPluginException(No implementation found for method on channel)

3 Answers 3

3 Comments

10 Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

3 Comments

10 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related