showSecondaryDisplay method

Future<bool?>? showSecondaryDisplay({
  1. required int displayId,
  2. required String routerName,
})

Creates a new secondary display that is attached to the specified display

Before displaying a secondary display, please define the UI you want to display in the [Route]. If we can't find the router name, the secondary display a blank screen [displayId] The id of display to which the secondary display should be attached. [routerName] The screen you want to display on the secondary display.

return Future<bool> about the status has been display or not

Implementation

Future<bool?>? showSecondaryDisplay(
    {required int displayId, required String routerName}) async {
  return await _displayMethodChannel?.invokeMethod<bool?>(
      _showPresentation,
      "{"
      "\"displayId\": $displayId,"
      "\"routerName\": \"$routerName\""
      "}");
}