ios - 将未包装的引用传递给 Objective C 初始值设定项的问题

Question

PhotoCollectionViewDelegate 有初始化器 -

-(instancetype)initWithController:(MyViewController *)controller {
    self = [super init];
    if(self) {
        self.myViewController = controller;
    }
    return self;
}

从 MyViewController.swift 文件中调用它，

let photoCollectionViewDelegate = PhotoCollectionViewDelegate(controller : self)

gives 'Can not convert value of type MyViewController to expected argument type 'MyViewController!'

即 PhotoCollectionViewDelegate(controller : MyViewController!) 但调用它的 self 是 MyViewController。

Answer 1

这可能很愚蠢，但你试过吗:

let photoCollectionViewDelegate = PhotoCollectionViewDelegate(controller : self as MyViewController!)