scribbleInsertPlaceholder method Null safety

Future<void> scribbleInsertPlaceholder()

Simulates iOS inserting a UITextPlaceholder during a long press with the pencil.

Implementation

Future<void> scribbleInsertPlaceholder() async {
  assert(isRegistered);
  await TestDefaultBinaryMessengerBinding.instance!.defaultBinaryMessenger.handlePlatformMessage(
    SystemChannels.textInput.name,
    SystemChannels.textInput.codec.encodeMethodCall(
      MethodCall(
        'TextInputClient.insertTextPlaceholder',
         <dynamic>[_client ?? -1, 0.0, 0.0]
      ),
    ),
    (ByteData? data) { /* response from framework is discarded */ },
  );
}