Summary - Platform plugin

Combine registration, Android and iOS to make a small plugin.

Summary - Platform plugin

A complete plugin brings three pieces together: registration on the Dart side via registerWith, a bridge via MethodChannel, and replies via onMethodCall on Android and handle on iOS. All sides use the same channel name.

// Dart
MyPlugin.registerWith();
// Android
"my_plugin" channel -> onMethodCall
// iOS
"my_plugin" channel -> handle

Exercise Print the three sides

In main, with three separate print calls, print 'Dart', 'Android', 'iOS' in order.

Show example solution

void main() {
  print('Dart');
  print('Android');
  print('iOS');
}

Test yourself

How many sides does a complete plugin contain code on?
- 2 (Dart and native)
- Unlimited
- 3 (Dart, Android, iOS)
- 1 (Dart only)
Show answer

3 (Dart, Android, iOS) — A complete plugin contains code on three sides: Dart, Android (Kotlin) and iOS (Swift); each side shares the same MethodChannel name.

registerWith call

MyPlugin.____();

Show answer

MyPlugin.registerWith();

Plugin summary matches

registerWith

Registration
Android

Kotlin side
iOS

Swift side
FlutterPlugin

Plugin interface

Next lesson: What is FFI?

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