UIAlertController TextField中不需要的顶部空间

时间:2015-04-07 12:21:41

标签: ios objective-c swift xcode6 uialertcontroller

我正在尝试创建一个对话框,要求保存文件名。

不知何故,显示的文本字段上面有一个额外的空格,我无法将其删除。空间不可用(它不是一条线,只是一个上边距)

即使尝试更改文本字段的.frame.height属性,我也无法摆脱它。

请帮忙!我不明白为什么会这样?

ScreenShot:http://i.stack.imgur.com/dQYjz.png

代码是:

    var fieldSetListName: UITextField!

    func askForSetListName() {

    //Create the AlertController
    let alertController: UIAlertController = UIAlertController(title: "Name", message: "Enter a name for Setlist", preferredStyle: .Alert)

    //Create and add the Cancel action
    let cancelAction: UIAlertAction = UIAlertAction(title: "Cancel", style: .Cancel) { action -> Void in
        //Do some stuff
    }
    alertController.addAction(cancelAction)

    //Create and an option action
    let okAction: UIAlertAction = UIAlertAction(title: "OK", style: .Default) { action -> Void in
    //Do some other stuff
    self.saveSetListAndDismiss(self.fieldSetListName.text)
    }

    alertController.addAction(okAction)
    //Add a text field
    alertController.addTextFieldWithConfigurationHandler { textField -> Void in
    textField.textColor = UIPalette.DarkText
    textField.placeholder = "(venue, festival, date etc.)"
    self.fieldSetListName = textField
    }

    //Present the AlertController
    self.presentViewController(alertController, animated: true, completion: nil)
    }

2 个答案:

答案 0 :(得分:0)

像这样添加textField:

 var example :UITextField
 var inputText : String
 let exampletextField = actionSheetController.textFields![0] as UITextField
 exampletextField.textColor = UIPalette.DarkText
 exampletextField.placeholder = "(venue, festival, date etc.)"
 inputText = exampletextField.text

答案 1 :(得分:0)

找到了解决方案。

对于遇到此类问题的任何人,使用UIAppearance全局设置UITableView的rowHeight属性会影响alertview内的文本字段高度:

我摆脱了这条线:UITableView.appearance()。rowHeight = 50

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