onPushReceiveBackground static method

dynamic onPushReceiveBackground(
  1. MessageHandler? handler
)

Set a message handler function which is called when the app is in the background or terminated. This provided handler must be a top-level function and cannot be anonymous.

Implementation

static onPushReceiveBackground(MessageHandler? handler) {
  _onPushReceiveBackgroundHandler = handler;

  if (handler != null) {
    _instance.registerBackgroundMessageHandler(handler);
  }
}