systemLayoutSizeFittingSize$1 method
      
CGSize
systemLayoutSizeFittingSize$1(})
      
     
    
systemLayoutSizeFittingSize:withHorizontalFittingPriority:verticalFittingPriority:
Implementation
objc.CGSize systemLayoutSizeFittingSize$1(objc.CGSize targetSize, {required double withHorizontalFittingPriority,required double verticalFittingPriority}) {
objc.checkOsVersionInternal('UIView.systemLayoutSizeFittingSize:withHorizontalFittingPriority:verticalFittingPriority:', iOS: (false, (8, 0, 0)));
  final _ptr = pkg_ffi.calloc<objc.CGSize>();
  objc.useMsgSendVariants ? _objc_msgSend_3fx2qnStret(_ptr, this.ref.pointer, _sel_systemLayoutSizeFittingSize_withHorizontalFittingPriority_verticalFittingPriority_, targetSize, withHorizontalFittingPriority, verticalFittingPriority) : _ptr.ref = _objc_msgSend_3fx2qn(this.ref.pointer, _sel_systemLayoutSizeFittingSize_withHorizontalFittingPriority_verticalFittingPriority_, targetSize, withHorizontalFittingPriority, verticalFittingPriority);
  final _finalizable = _ptr.cast<ffi.Uint8>().asTypedList(
      ffi.sizeOf<objc.CGSize>(), finalizer: pkg_ffi.calloc.nativeFree);
  return ffi.Struct.create<objc.CGSize>(_finalizable);
}