flipLeft method

void flipLeft()

Flips the Flipper to the Left for one time. Only works with DragAxis.horizontal and DragAxis.both.

Implementation

void flipLeft() {
  assert(_state != null,
      'Controller not attached to any Flipper. Seems that you forget to attach controller to Flipper.');
  assert(
      (dragAxis != DragAxis.vertical),
      'Cannot call flipLeft() when the dragAxis is set to DragAxis.vertical!'
      '\nUse DragAxis.horizontal or DragAxis.both');

  ///For DragAxis.both
  ///Initialising the unused animation with the current value.
  if (dragAxis == DragAxis.both) {
    _state!.animationVertical =
        AlwaysStoppedAnimation<double>(_state!.dragVertical);
  }

  _state!.animationHorizontal = Tween<double>(
    begin: _state!.isFront ? 0 : 180,
    end: _state!.isFront ? 180 : 360,
  ).animate(_state!.animationController);
  if (_state!.isInverted) {
    _state!.animationController.reverse(from: 1.0);
  } else {
    _state!.animationController.forward(from: 0.0);
  }
}