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How to Create a Plugin in Flutter?

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Expert App Devs
How to Create a Plugin in Flutter?

What is a Plugin?

A plugin can be defined as a piece of software that allows you to add capabilities to your app. 

But first, you should check pub.dev to see if the plugin you are going to create already exists or not.

For authoring plugins, there is a mechanism in Fluter that allows you to interact with platform-specific code and also allows you to publish your plugins on pub.dev so that others can use them.


Create the plugin template

To get started Flutter works with templates for plugins that make it easy. You can specify which language you want to use when you create the plugin template. The default is Kotlin for Android and Swift for iOS.


Add the platform-specific code

Now you have two separate implementations for the same functionality, one for iOS and one for Android. Since the plugin can call into it you need to get these compiled as part of your app.


Add to iOS

Add your files into your project in the ios/Classes location, so that they will compile as part of the iOS build for your plugin. But you have to put the files in the right location.


Add to Android

By placing your Java file in the android/src/main/java/com/example location, for your plugin, it will compile as part of the Android build. For Android just check the Gradle build system to ensure that for the compilation you only need to place the file in the correct directory.


Design the plugin API

For the information, you want to send back and forth between Flutter and the host platform this is the next step in making a plugin. So design it so that API can be used by needed Dev.


Implement the plugin platform code

Now you have platform-specific libraries that control the code for making sound and Dart code, Now you have to handle not implemented exceptions.


Conclusion

In this way, you can create a plugin, and then you have to publish it.


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