leftBarButtonItem property

UIBarButtonItem? get leftBarButtonItem

Some navigation items want to display a custom left or right item when they're on top of the stack. A custom left item replaces the regular back button unless you set leftItemsSupplementBackButton to YES

Implementation

UIBarButtonItem? get leftBarButtonItem {
  objc.checkOsVersionInternal('UINavigationItem.leftBarButtonItem', iOS: (false, (2, 0, 0)));
  final _ret = _objc_msgSend_151sglz(this.ref.pointer, _sel_leftBarButtonItem);
  return _ret.address == 0 ? null : UIBarButtonItem.castFromPointer(_ret, retain: true, release: true);
}
set leftBarButtonItem (UIBarButtonItem? value)

Some navigation items want to display a custom left or right item when they're on top of the stack. A custom left item replaces the regular back button unless you set leftItemsSupplementBackButton to YES

Implementation

set leftBarButtonItem(UIBarButtonItem? value) {
  objc.checkOsVersionInternal('UINavigationItem.setLeftBarButtonItem:', iOS: (false, (2, 0, 0)));
  _objc_msgSend_xtuoz7(this.ref.pointer, _sel_setLeftBarButtonItem_, value?.ref.pointer ?? ffi.nullptr);
}