Cocoa有没有简单的输入框？

Question

Cocoa 中是否有一个内置的、简单的输入框，它是为检索字符串而设计的（就像我记得的很好的 Visual Basic 中一样）？

我想我可以设计一个小的 window 来做到这一点，但我更愿意使用原生的等价物（如果存在这样的东西；如果有的话我找不到它）。

谢谢。

Answer 1

如果您想要一个带有文本字段的对话框，您需要自己创建它或 put an NSTextField into an NSAlert (note that the linked answer presents a modal dialog that will block all interaction with the rest of your application; if you don't want that, you need to present it as a sheet on a window)。

Answer 2

感谢 DarkDust 为我指明了正确的方向。我永远不会在 NSAlerts 中搜索 "accessory views"（我缺少正确的术语来欺骗 Google 或 SO 给我货物！）。我也忘了说我用的是Swift，所以我敲了个速译：

func getString(title: String, question: String, defaultValue: String) -> String {
    let msg = NSAlert()
    msg.addButtonWithTitle("OK")      // 1st button
    msg.addButtonWithTitle("Cancel")  // 2nd button
    msg.messageText = title
    msg.informativeText = question

    let txt = NSTextField(frame: NSRect(x: 0, y: 0, width: 200, height: 24))
    txt.stringValue = defaultValue

    msg.accessoryView = txt
    let response: NSModalResponse = msg.runModal()

    if (response == NSAlertFirstButtonReturn) {
        return txt.stringValue
    } else {
        return ""
    }
}

Answer 3

更新 Swift 5. 我总是将可重复使用的项目（如提醒）放在应用程序管理器中 class。而且我喜欢将我的闭包作为类型别名，以便更好地组织它们并使参数更清晰。

typealias promptResponseClosure = (_ strResponse:String, _ bResponse:Bool) -> Void

func promptForReply(_ strMsg:String, _ strInformative:String, vc:ViewController, completion:promptResponseClosure) {

        let alert: NSAlert = NSAlert()

        alert.addButton(withTitle: "OK")      // 1st button
        alert.addButton(withTitle: "Cancel")  // 2nd button
        alert.messageText = strMsg
        alert.informativeText = strInformative

        let txt = NSTextField(frame: NSRect(x: 0, y: 0, width: 200, height: 24))
        txt.stringValue = ""

        alert.accessoryView = txt
        let response: NSApplication.ModalResponse = alert.runModal()

        var bResponse = false
        if (response == NSApplication.ModalResponse.alertFirstButtonReturn) {
            bResponse = true
        }

        completion(txt.stringValue, bResponse)

    }

然后像这样调用它（我的应用程序的 git 管理部分需要这个）：

myAppManager.promptForReply("Changes were added to the repo, do you want to commit them?", "If you are commiting, add your commit message below.", vc: self, completion: {(strCommitMsg:String, bResponse:Bool) in

    if bResponse {
         print(strCommitMsg)
    }
})

Cocoa有没有简单的输入框？

Is there a simple input box in Cocoa?

xcode

cocoa