如何在Swift中使用Block？

Question

我在目标C中使用块

typedef void (^RequestSuccessCallback)(WebRequestManager *request);
@property (nonatomic,copy) RequestSuccessCallback RequestSuccessBlock;

但是如何在swift中使用Block？

Answer 1

尝试这样的事情：

typealias RequestSuccessCallback = (WebRequestManager) -> Void
var requestSuccessBlock: RequestSuccessCallback

如果您更喜欢命名回调，则可能是这样的：

typealias RequestSuccessCallback = (manager: WebRequestManager) -> Void
var requestSuccessBlock: RequestSuccessCallback