Objective-C的吸气剂SWIFT相当于

我有以下的getter：Objective-C的吸气剂SWIFT相当于

-(UICollectionViewFlowLayout *)verticalFlowViewLayout { 
if (!_verticalFlowViewLayout) { 
_verticalFlowViewLayout = [[UICollectionViewFlowLayout alloc]init; 
[_verticalFlowViewLayout setItemSize:DeviceIsPad()self.iPadCollectionItemPortraitSize :self.iPhoneCollectionItemPortraitSize]; 
[_verticalFlowViewLayout setMinimumLineSpacing:MIN_LINE_SPACING]; 
[_verticalFlowViewLayout setScrollDirection:UICollectionViewScrollDirectionVertical]; 
} 
return _verticalFlowViewLayout; 
}

我想将它转换为SWIFT 2.任何帮助吗？

来源

2015-10-09 Μήτσος

lazy var verticalFlowLayout: UICollectionViewFlowLayout = { 
    verticalFlowLayout = UICollectionViewFlowLayout() 
    //other configuration here 
}()

来源

2015-10-09 11:09:38

正确，但使用此方法不能使用其他类类型。（即收集视图出口的框架尺寸）。不过，我用临时变量（让tempFlow = UICollectionViewFlowLayout（））获得{}，这似乎正在工作... –

Objective-C的吸气剂SWIFT相当于

回答

相关问题