Create custom plugin in the flutter

Updated 28 April 2023


Dart package that contains an API written in Dart code combined with one or more platform-specific implementations. Plugin packages can be written for Android (using Kotlin or Java), iOS (using Swift or Objective-C), web, macOS, Windows, or Linux, or any combination thereof.

Flutter allows us to create our own plugins where we can manage our native code.

Read about the variety of Flutter App Development Services offered by Mobikul

Let’s create a plugin where we will implement webview.

Step 1: Create the package

Open the android studio got to File –>> New –>> New flutter project.

Create custom plugin in the flutter

Click on the New flutter project –>> Select the Flutter plugin option and create the plugin.

Create custom plugin in the flutter

Step 2: Specifying a plugin’s supported platforms. In pubspec.yaml file we can add specific information about the package.

Step 3: Now open lib/WebviewPlugin.dart file and create a method where we will pass URL string.

Step 4: Now implement Webview code in iOS end. Open SwiftWebviewPlugin.swift file from ios folder and add code to handle API request.

And Add WKWebview implementation code.

Step 5: Now implement Webview code in Android end. Open WebviewPlugin.kt file from android folder and add code to handle API request.

Now add WebViewActivity code in the package


Step 6: Thats all for the implemention part,  now call the openWebview method.

Step 7: Now publish the plugin.

Run the publish command in dry-run mode to see if everything passes analysis:

The next step is publishing to

I hope this code will help you better to understand Custom Plugin in Swift. If you feel any doubt or query please comment below.

Thanks for the read this blog and if you want to visit my other blog click here.

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