Question

我更新到swift 3.0，我得到这两个错误请帮助。下面是代码和图片

我在self.blockfinish

收到错误

var blockFinish: ((_ selectedTags: Array<Tag>, _ unSelectedTags: Array<Tag>) -> ())!

func finishTagController() {
    var selected: Array<Tag> = Array()
    var unSelected: Array<Tag> = Array()

    for currentTag in tags {
        if currentTag.isSelected {
            selected.append(currentTag)
        }
        else {
            unSelected.append(currentTag)
        }
    }
    self.dismissViewControllerAnimated(true, completion: { () -> Void in
        self.blockFinish(selectedTags: selected, unSelectedTags: unSelected)
    })
}

这里我在let中遇到错误（“addTagView.textEdit.text.stringByTrimmingCharactersInSet（spaceSet）”）

func createNewTag() {
    let spaceSet = NSCharacterSet.whitespaces
    let contentTag = addTagView.textEdit.text.stringByTrimmingCharactersInSet(spaceSet)
    if strlen(contentTag) > 0 {
        let newTag = Tag(isSelected: false, isLocked: false, textContent: contentTag)
        tags.insert(newTag, atIndex: tags.count)
        collectionTag.reloadData()            
    }
    cancelEditTag()
}

Error image

Answer 1

Swift 3.0中字符串修剪方法的签名已更改。 Here is the new method:

func trimmingCharacters(in set: CharacterSet) -> String

所以而不是：

let contentTag = addTagView.textEdit.text.stringByTrimmingCharactersInSet(spaceSet)

你会这样做：

let contentTag = addTagView.textEdit.text.trimmingCharacters(in: spaceSet)

修改 blockFinish在呼叫站点没有参数名称。

替换：

self.blockFinish(selectedTags: selected, unSelectedTags: unSelected)

使用：

self.blockFinish(selected, unSelected)

Swift 3更新导致错误

1 个答案: