Question

我正在尝试以下代码进行键盘本地化，该代码可在Swift3中使用。我从下面的链接中获取了此代码：- iPhone: Change Keyboard language programmatically

但是它在Swift 4中给出了以下错误。

a）let language = type.getKeyboardLanguage() 对于此行，它给出错误为：-Expression type '(_) -> _' is ambiguous without more context

b）在下面的代码的切换情况下

switch self {
        case .one:
            return "en"
        case .two:
            return "ru"
        case .three:
            return ""
        case .four:
            return ""
        }

它显示为错误Pattern cannot match values of type 'ViewController' for cases in Switch。

override var textInputMode: UITextInputMode? {


        let language = type.getKeyboardLanguage()
        if language.isEmpty {
            return super.textInputMode

        } else {
            for tim in UITextInputMode.activeInputModes {
                if tim.primaryLanguage!.contains(language) {
                    return tim
                }
            }
            return super.textInputMode
        }

    }
    func getKeyboardLanguage() -> String {
        switch self {
        case .one:
            return "en"
        case .two:
            return "ru"
        case .three:
            return ""
        case .four:
            return ""
        }

    }

Answer 1

您只需要定义函数将要返回的类型。

let language: SomeTypeHere = type.getKeyboardLanguage()

干杯！

小数键盘类型的键盘本地化

1 个答案: