xcode - Swift:2个连续的闭包/ block

Question

根据此处的文档:https://www.parse.com/docs/ios_guide#files-progress/iOS

这是使用完成 block 和 progressBlock 处理文件保存的建议语法。

let str = "Working at Parse is great!"
let data = str.dataUsingEncoding(NSUTF8StringEncoding)
let file = PFFile(name:"resume.txt", data:data)
file.saveInBackgroundWithBlock {
  (succeeded: Bool!, error: NSError!) -> Void in
  // Handle success or failure here ...
}, progressBlock: {
  (percentDone: Int) -> Void in
  // Update your progress spinner here. percentDone will be between 0 and 100.
}

但是，XCode 6.2 会抛出此错误:一行中的连续语句必须用';'分隔

在这一行:

}, progressBlock: {

有人知道如何在这种情况下正确使用 progressBlock 吗？

编辑 1:这是 Obj C 中的示例:

NSData *data = [@"Working at Parse is great!" dataUsingEncoding:NSUTF8StringEncoding];
PFFile *file = [PFFile fileWithName:@"resume.txt" data:data];
[file saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
  // Handle success or failure here ...
} progressBlock:^(int percentDone) {
  // Update your progress spinner here. percentDone will be between 0 and 100.
}];

编辑 2:

另一种尝试，不同的错误:

编辑 3:原始代码，但根据评论建议使用 CInt

Answer 1

我用方法签名在 Objective C 中定义了一个类:

- (void)saveInBackgroundWithBlock:(void(^)(BOOL succeeded, NSError *error))block progressBlock:(void(^)(int percentDone))progressBlock;

我可以在 Swift 中这样调用它:

let file = Test()
file.saveInBackgroundWithBlock({(success: Bool, error: NSError!) -> Void in
        NSLog("1")
    }, progressBlock: { (percentage: CInt) -> Void in
        NSLog("2")
    })