如何在 UIAlertController 中添加 UIPickerView? [英] How to add UIPickerView in UIAlertController?
问题描述
谁能帮助我我不知道要这样做.我有这样的课
Could anyone help me I don't have any idea to do this. I have this class like
import Foundation
import UIKit
class Alert {
func loginAlert(viewController : UIViewController , callback: (result: Bool) -> ()) {
var alert = UIAlertController(title : "Compose",
message : "Fill the following",
preferredStyle: UIAlertControllerStyle.Alert
)
var loginAction = UIAlertAction(title: "Send", style: UIAlertActionStyle.Default){
UIAlertAction in
}
var cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel){
UIAlertAction in
callback(result: false);
}
alert.addAction(loginAction)
alert.addAction(cancelAction)
alert.addTextFieldWithConfigurationHandler { (textField) -> Void in
textField.secureTextEntry = true
textField.placeholder = "Message"
}
viewController.presentViewController(alert, animated: true, completion: nil)
}
}
我阅读了关于 addTextFieldWithConfigurationHandler
的内容,它似乎仅适用于文本字段,我想知道我怎么能做到这一点.任何人都可以帮助我,任何评论和建议都可以.提前致谢.
I read about addTextFieldWithConfigurationHandler
it seems it only just for textfield, I wonder how could I do this. Could anyone help me, any comment and suggestion would do. Thanks in advance.
推荐答案
我需要在 AlertController(控制 NSTimer)中有一个带有取消/开始按钮的弹出式选择器视图.也很有风格.我已经挑选了所有计时器的东西,这是基本的选择器代码,希望它可以帮助某人.
I needed to have a popup pickerView inside an AlertController (controlling an NSTimer) with Cancel/Start buttons. It's stylable too. I've plucked out all the timer stuff, here's the basic picker code, Hope it helps someone.
ps 完整的 monty 弹出一个选择器,它在选定的选择器值上设置一个计时器,并在计时器完成时播放一首曲子.有需要的可以发帖.它为食谱提供计时器/闹钟.
let pickerSet = ["5","10","15","20","30","35","40","45","50","55","60", "65", "70", "75", "80", "85", "90"]
func showPickerInActionSheet() {
let message = "\n\n\n\n\n\n\n\n"
let alert = UIAlertController(title: "", message: message, preferredStyle: UIAlertControllerStyle.Alert)
alert.modalInPopover = true
let attributedString = NSAttributedString(string: "Set Timer Minutes", attributes: [
NSFontAttributeName : UIFont.systemFontOfSize(20), //your font here,
NSForegroundColorAttributeName : UIColor(red:0.29, green:0.45, blue:0.74, alpha:1.0) ])
alert.setValue(attributedString, forKey: "attributedTitle")
//Create a frame (placeholder/wrapper) for the picker and then create the picker
let pickerFrame: CGRect = CGRectMake(35, 52, 200, 140) // CGRectMake(left, top, width, height) - left and top are like margins
let picker: UIPickerView = UIPickerView(frame: pickerFrame)
picker.backgroundColor = UIColor(red:0.29, green:0.45, blue:0.74, alpha:1.0)
//set the pickers datasource and delegate
picker.delegate = self
picker.dataSource = self
//Add the picker to the alert controller
alert.view.addSubview(picker)
let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel, handler: nil)
alert.addAction(cancelAction)
let okAction = UIAlertAction(title: "Start", style: .Default, handler: {
(alert: UIAlertAction!) -> Void in self.doSomethingWithValue(Int(self.pickerSet[picker.selectedRowInComponent(0)])!) })
alert.addAction(okAction)
viewController.presentViewController(alert, animated: true, completion: nil)
}
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int { return 1 }
func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { return pickerSet.count }
func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {}
func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? { return pickerSet[row] }
func pickerView(pickerView: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? {
let titleData = pickerSet[row]
let myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Verdana", size: 15.0)!,NSForegroundColorAttributeName:UIColor.whiteColor()])
return myTitle
}
func doSomethingWithValue(value: Int) {
self.selection = value
}
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