(_) - > bool不能转换为()

时间:2016-03-15 21:29:40

标签: ios swift uisearchcontroller

我在这段代码中使用布尔标识符时遇到了困难。

func WorkTypeSearchable() {
    let pathToFile = NSBundle.mainBundle().pathForResource("work", ofType: "txt")
    if let path = pathToFile {
        let workString = try! NSString(contentsOfFile: path, encoding: NSUTF8StringEncoding)
        _ = workString.componentsSeparatedByString("\n")
        tblSearchResults.reloadData()
    }
}

func updateSearchResultsForSearchController(searchController: UISearchController) {
    let searchString = searchController.searchBar.text

    FilteredWorkType = WorkTypeSearchable( { (work) -> Bool in
        let workText: NSString = work

        return (workText.rangeofString(searchString, options: NSStringCompareOptions.CaseInsensitiveSearch).location) != NSNotFound
    })
    tblSearchResults.reloadData()
}

FilteredWorkType = WorkTypeSearchable( { (work) -> Bool in行中,我无法使用它,因为它崩溃了应用程序。但它给我的错误,我无法理解。

  

(_) - > Bool不能转换为()

我猜这与Swift 1到Swift 2的变化有关。任何人都可以帮我纠正这个错误并解释为什么我会收到这个错误吗?

我从代码的这一部分调用WorkTypeSearchable

func WorkTypeSearchable() {

    let pathToFile = NSBundle.mainBundle().pathForResource("work", ofType: "txt")

    if let path = pathToFile {

        let workString = try! NSString(contentsOfFile: path, encoding: NSUTF8StringEncoding)

        _ = workString.componentsSeparatedByString("\n")

        tblSearchResults.reloadData()
    }
}

`

0 个答案:

没有答案