Yes, Flutter supports calling into the platform, including integrating with Java or Kotlin code on Android, and ObjectiveC or Swift code on iOS. This is enabled via a flexible message passing style where a Flutter app might send and receive messages to the mobile platform using a BasicMessageChannel.
Learn more about accessing platform and third-party services in Flutter with platform channels.
Here is an example project that shows how to use a platform channel to access battery state information on iOS and Android.
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