在我目前的项目中,我有详细的视图,从我的表格视图显示一个特定的记录.我有以下标签
@IBOutlet weak var vacationImageView: UIImageView! @IBOutlet weak var percentSaved: UILabel! @IBOutlet weak var cost: UILabel! @IBOutlet weak var saved: UILabel! @IBOutlet weak var circleProgressView: CircularProgressView! @IBOutlet weak var daysDepart: UILabel!
我打电话给popover,我想将保存的当前文本值发送到我的弹出窗口,允许用户编辑它并将其发送回视图.这是我的popover电话.
@IBAction func addPopover(sender: UIView) {
let savingsInformationViewController = storyboard?.instantiateViewControllerWithIdentifier("SavingsAddPopover") as UIViewController
savingsInformationViewController.modalPresentationStyle = .Popover
savingsInformationViewController.preferredContentSize = CGSizeMake(200,200)
let popoverController = savingsInformationViewController.popoverPresentationController
popoverController?.sourceView = sender
popoverController?.permittedArrowDirections = .Any
popoverController?.delegate = self
presentViewController(savingsInformationViewController,animated: true,completion: nil)
}
我会以为我可以引用popover中的数据对象,但是至少不是我的想法.
解决方法
class ViewController: UIViewController,SavingViewControllerDelegate,UIPopoverPresentationControllerDelegate{
@IBOutlet var labelText: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view,typically from a nib.
}
@IBAction func buttonPopOverClick(sender: UIButton)
{
let savingsInformationViewController = storyboard?.instantiateViewControllerWithIdentifier("SavingsAddPopoverVC") as SavingViewController
savingsInformationViewController.delegate = self
savingsInformationViewController.strSaveText=labelText.text
savingsInformationViewController.modalPresentationStyle = .Popover
if let popoverController = savingsInformationViewController.popoverPresentationController {
popoverController.sourceView = sender
popoverController.sourceRect = sender.bounds
popoverController.permittedArrowDirections = .Any
popoverController.delegate = self
}
presentViewController(savingsInformationViewController,completion: nil)
}
func saveText(strText: NSString) {
labelText.text=strText
}
// MARK: - UIPopoverPresentationControllerDelegate
func adaptivePresentationStyleForPresentationController(controller: UIPresentationController!) -> UIModalPresentationStyle {
return .FullScreen
}
func presentationController(controller: UIPresentationController!,viewControllerForAdaptivePresentationStyle style: UIModalPresentationStyle) -> UIViewController! {
return UINavigationController(rootViewController: controller.presentedViewController)
}
}
protocol SavingViewControllerDelegate
{
func saveText(var strText : NSString)
}
class SavingViewController: UIViewController {
@IBOutlet var textField: UITextField!
var delegate : SavingViewControllerDelegate?
var strSaveText : NSString!
override func viewDidLoad() {
super.viewDidLoad()
textField.text = strSaveText
// Do any additional setup after loading the view.
}
@IBAction func buttonDone(sender: UIButton)
{
if (self.delegate) != nil
{
delegate?.saveText(textField.text)
self.dismissViewControllerAnimated(true,nil)
}
}
}
