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Questions tagged [flutter-method-channel]

Flutter uses a flexible system that allows you to call platform-specific APIs whether available in Kotlin or Java code on Android, or in Swift or Objective-C code on iOS. A named channel for communicating with platform plugins using asynchronous method calls.

146 questions
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Implementing methodChannel in simple headless flutter/dart plugin for Swift app

I'm trying to implement a simple headless dart module that can be run from an iOS function : Here is the AppDelegate.swift : import UIKit import Flutter @main class AppDelegate: UIResponder, UIApplicationDelegate { func application(_…
aloys-c
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How to invoke Dart code from Kotlin and return result

I want a Kotlin activity to invoke my Dart code using the methodChannel.invokeMethod method. I want to get the result which is passed on the Dart side. Can someone please help me in extracting the result from MethodChannel.Result callback? How to…
Pro
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Android Native AlertDialog/xml file show in flutter using method channel

I want to show my custom-made native android XML alert dialog in flutter using method channel call, I do not want to get the result back to flutter and show a dialog in a flutter, instead, I want to show that native custom-made android XML alert…
Majid
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How to invoke dart code from kotlin code?

I have a flutter application where I have written kotlin code and I have set up method channel to communicate. There is a method in kotlin code which is invoked periodically by alarmManager. I want this method to call another method written on the…
Pro
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Flutter app not working after integration with existing native app

I have an existing native iOS App that in production already. Now i want a flutter module to be integrated into the existing app. My flutter module works fine when run individually. I want my native app to call the flutter screen and back to the…
user2903299
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White Screen on open qr_code_scanner: ^1.0.1

I'm openning the scanner of qr_code_scanner plugin and getting a white screen and this error: E/MethodChannel#flutter/platform_views(27605): Failed to handle method call E/MethodChannel#flutter/platform_views(27605): java.lang.NullPointerException:…
Rodrigo Reveron
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Unable to naviagte to another screen in flutter

I'm trying to take value from the method channel and using the value I'm trying to navigate another screen. When I try to navigate from TextButton onclick it's navigating but when I try to navigate from the value received by the method channel it's…
thinkcode
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Handling method channels in flutter on dart side

I'm trying to handle the method channel call on the dart side. What I expected to happen when calling a constructor was that the program printed sign in!. What I get instead is MissingPluginException(No implementation found for method signIn on…
JRazek
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Run Flutter MethodChannel even if app is closed

I want to run flutter method channel every 5 seconds even if app is closed so what I should do?
bhargav Vagadiya
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Flutter how to convert NSData* to Byte* in objc

I am trying to use c++ api with objc native code in flutter. https://docs.flutter.dev/development/platform-integration/platform-channels?tab=type-mappings-obj-c-tab flutter documentation says Uint8List should be stored as FlutterStandardTypedData…
Jungwon
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Flutter Method Chanel Error java.lang.RuntimeException: Methods marked with @UiThread must be executed on the main thread

Please Help Me. My Flutter Plugin Java can't return the list from native android please tell me to resolve it. I created a flutter plugin to connect to my watch. I created a method Chanel to execute android native SDK, but I am stuck because I can't…
Thananat Rueangchot
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how to implement Appl ovin Native Ad in Flutter app

I am using Applovin SDk in my flutter app, Banner and Interstitial is working fine but native. I want you to help me implement the native add. Or share some sort of useful links. thanks in advance.
Sharyer Ilyas khan
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Catching exception from native code (Android) in Flutter

If I throw an Exception in Android, it doesn't not catch it on the flutter side. I am using the MethodChannel to trigger methods on Android. Is there a way to accomplish this?
B0r1
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How to use Flutter MethodChannel from FirebaseMessaging.onBackgroundMessage?

I'm using firebase_messaging onBackgroundMessage handler for listening push messages and it works as expected. Now I want to call platform method from this handler, but I'm unable to do this. MethodChannel can only be registered to Android Activity,…
timukasr
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Flutter: It's possible to send data from Android module to Flutter project via MethodChannel without close Activity(Still in Android Activity)?

I have screens. StoryScreen (from Flutter) MainActivity (from Android Activity, extend to FlutterActivity) MainUnityActivity (from Android Activity, extend to AppCompatActivity) The actually screen is only two, StoryScreen and MainUnityActivity.…
R Rifa Fauzi Komara
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