onStateError method

bool onStateError(FlutterErrorDetails details)

Call the latest SateX object's error routine Possibly the error occurred there.

Implementation

bool onStateError(FlutterErrorDetails details) {
  //
  final state = lastState;

  bool caught = state != null;

  if (caught) {
    //
    try {
      //
      final stack = details.stack?.toString();
      //
      if (stack != null) {
        // That State object's build() function was called.
        var name = state.toString();
        name = name.substring(0, name.indexOf('#'));
        caught = stack.contains('$name.build');

        if (!caught) {
          // If it involves particular libraries
          final library = details.library;
          caught = library != null &&
              (library.contains('gesture') || library.contains('widgets'));
        }

        // Call the StateX's onError() function
        if (caught && state != this) {
          _errorStateName = name;
          state.onError(details);
        } else {
          _errorStateName = null;
        }
      }
    } catch (e, stack) {
      recordException(e, stack);
    }
    // Always test if there was an error in the error handler
    // Include it in the error reporting as well.
    if (hasError) {
      _onErrorInHandler();
    }
  }
  return caught;
}