Gibt es eine Möglichkeit, UIPickerView in Swift in UIAlertController (Alert oder ActionSheet) hinzuzufügen?

Question

Ich bin total neu bei swift (und iOS-Programmierung überhaupt), aber ich habe damit angefangen herumzuspielen (es war keine gute Idee, wenn alles noch Beta-Version ist: D). Also habe ich versucht, es selbst herauszufinden, aber immer noch nichts. Sogar versucht, Subview mit Picker ohne Erfolg hinzuzufügen. Kann mir irgendjemand helfen?

Answer 1

Nun, das ist mein letzter Code, der für mich funktioniert hat. Es ist eine Mischung aus ein paar Ideen. Die Hauptgründe, warum ich meine Antwort akzeptiere, ist, dass mein Code in Swift ist, mein Code verwendet UIAlertController, mein Code ist für den Picker. Ich möchte Jageen danken - meine Antwort basiert auf seiner Idee.

func showPickerInActionSheet(sentBy: String) { 
    var title = "" 
    var message = "\n\n\n\n\n\n\n\n\n\n"; 
    var alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.ActionSheet); 
    alert.modalInPopover = true; 


    //Create a frame (placeholder/wrapper) for the picker and then create the picker 
    var pickerFrame: CGRect = CGRectMake(17, 52, 270, 100); // CGRectMake(left), top, width, height) - left and top are like margins 
    var picker: UIPickerView = UIPickerView(frame: pickerFrame); 

    /* If there will be 2 or 3 pickers on this view, I am going to use the tag as a way 
    to identify them in the delegate and datasource. /* This part with the tags is not required. 
    I am doing it this way, because I have a variable, witch knows where the Alert has been invoked from.*/ 
    if(sentBy == "profile"){ 
     picker.tag = 1; 
    } else if (sentBy == "user"){ 
     picker.tag = 2; 
    } else { 
     picker.tag = 0; 
    } 

    //set the pickers datasource and delegate 
    picker.delegate = self; 
    picker.dataSource = self; 

    //Add the picker to the alert controller 
    alert.view.addSubview(picker); 

    //Create the toolbar view - the view witch will hold our 2 buttons 
    var toolFrame = CGRectMake(17, 5, 270, 45); 
    var toolView: UIView = UIView(frame: toolFrame); 

    //add buttons to the view 
    var buttonCancelFrame: CGRect = CGRectMake(0, 7, 100, 30); //size & position of the button as placed on the toolView 

    //Create the cancel button & set its title 
    var buttonCancel: UIButton = UIButton(frame: buttonCancelFrame); 
    buttonCancel.setTitle("Cancel", forState: UIControlState.Normal); 
    buttonCancel.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal); 
    toolView.addSubview(buttonCancel); //add it to the toolView 

    //Add the target - target, function to call, the event witch will trigger the function call 
    buttonCancel.addTarget(self, action: "cancelSelection:", forControlEvents: UIControlEvents.TouchDown); 


    //add buttons to the view 
    var buttonOkFrame: CGRect = CGRectMake(170, 7, 100, 30); //size & position of the button as placed on the toolView 

    //Create the Select button & set the title 
    var buttonOk: UIButton = UIButton(frame: buttonOkFrame); 
    buttonOk.setTitle("Select", forState: UIControlState.Normal); 
    buttonOk.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal); 
    toolView.addSubview(buttonOk); //add to the subview 

    //Add the tartget. In my case I dynamicly set the target of the select button 
    if(sentBy == "profile"){ 
     buttonOk.addTarget(self, action: "saveProfile:", forControlEvents: UIControlEvents.TouchDown); 
    } else if (sentBy == "user"){ 
     buttonOk.addTarget(self, action: "saveUser:", forControlEvents: UIControlEvents.TouchDown); 
    } 

    //add the toolbar to the alert controller 
    alert.view.addSubview(toolView); 

    self.presentViewController(alert, animated: true, completion: nil); 
} 

func saveProfile(sender: UIButton){ 
    // Your code when select button is tapped 

} 

func saveUser(sender: UIButton){ 
    // Your code when select button is tapped 
} 

func cancelSelection(sender: UIButton){ 
    println("Cancel"); 
    self.dismissViewControllerAnimated(true, completion: nil); 
    // We dismiss the alert. Here you can add your additional code to execute when cancel is pressed 
} 

// returns number of rows in each component.. 
func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int{ 
    if(pickerView.tag == 1){ 
     return self.profilesList.count; 
    } else if(pickerView.tag == 2){ 
     return self.usersList.count; 
    } else { 
     return 0; 
    } 
} 

// Return the title of each row in your picker ... In my case that will be the profile name or the username string 
func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String! { 
    if(pickerView.tag == 1){ 

      var selectedProfile: Profiles = self.profilesList[row] as Profiles; 
      return selectedProfile.profileName; 

    } else if(pickerView.tag == 2){ 

      var selectedUser: Users = self.usersList[row] as Users; 
      return selectedUser.username; 

    } else { 

     return ""; 

    } 

} 

func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) { 
    if(pickerView.tag == 1){ 
      var choosenProfile: Profiles = profilesList[row] as Profiles; 
      self.selectedProfile = choosenProfile.profileName; 
    } else if (pickerView.tag == 2){ 
      var choosenUser: Profiles = usersList[row] as Users; 
      self.selectedUsername = choosenUser.username; 
    } 

} 

Answer 2

Ich denke, es ist keine schlechte Idee, von der Beta zu starten. Sie benötigen benutzerdefinierte UIAlertView. Achte auf UIAlertController, es ist verfügbar nur in iOS 8.0.

Blick there und there

Answer 3

Hier ist ein github project, die eine UIDatePicker in der Mitte des Bildschirms erscheint. Es verwendet nicht UIAlertController oder UIAlertView. Ich glaube nicht, dass dies die Absicht der Alarmklassen ist.

Answer 4

dieses Ich versuche einige Trick getan ...

Im Folgenden Code funktioniert für mich in iPod iOS8beta5 + XCode6
I UIActivityIndicatorView Kontrolle in UIAlertController in Objective-C hinzufügen.

UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil 
             message:@"Please wait\n\n\n" 
           preferredStyle:UIAlertControllerStyleAlert]; 

    UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; 
    spinner.center = CGPointMake(130.5, 65.5); 
    spinner.color = [UIColor blackColor]; 
    [spinner startAnimating]; 
    [alert.view addSubview:spinner]; 
    [self presentViewController:alert animated:NO completion:nil]; 

---

Hinweis:
Es ist in Objective-C, aber durch das es zu beweisen, dass wir auch diese rasche Verwendung tun können.

Answer 5

Ich musste das gleiche tun und das ist, wie ich es gelöst habe. Ich habe etwas Ähnliches wie Jageen gemacht. Mein Code ist unten. Beachten Sie, dass ich Werte in die UIPickerView in einem anderen Teil des Codes eingeben.

//Need to use an UIAlertController for iOS 8 instead of an action view 
UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil 
           message:@"\n\n\n\n\n\n\n\n" 
           preferredStyle:UIAlertControllerStyleAlert]; 

//Make a frame for the picker & then create the picker 
CGRect pickerFrame = CGRectMake(0, 0, 270, 100); 
UIPickerView *regionsPicker = [[UIPickerView alloc] initWithFrame:pickerFrame]; 

//There will be 3 pickers on this view so I am going to use the tag as a way 
//to identify them in the delegate and datasource 
regionsPicker.tag = 1; 

//set the pickers datasource and delegate 
regionsPicker.dataSource = self; 
regionsPicker.delegate = self; 

//set the pickers selection indicator to true so that the user will now which one that they are chosing 
[regionsPicker setShowsSelectionIndicator:YES]; 

//Add the picker to the alert controller 
[alert.view addSubview:regionsPicker]; 

//make the toolbar view 
UIView *toolView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 270.0f, 44.f)]; 
toolView.backgroundColor = [UIColor blackColor]; //set it's background 


//add buttons to the view 
CGRect buttonFrame = CGRectMake(0, 5, 100, 30); //size & position of the button as placed on the toolView 
//make the cancel button & set the title 
UIButton *button = [[UIButton alloc] initWithFrame: buttonFrame]; 
[button setTitle: @"Cancel" forState: UIControlStateNormal]; 
[button setTitleColor: [UIColor blueColor] forState: UIControlStateNormal]; //make the color blue to keep the same look as prev version 
[toolView addSubview:button]; //add to the subview 

//Add the tartget 
[button addTarget: self 
      action: @selector(cancelRegionSet) 
forControlEvents: UIControlEventTouchDown]; 

//do the same for the select button 
buttonFrame = CGRectMake(90, 5, 100, 30); 
UIButton *selButton = [[UIButton alloc] initWithFrame:buttonFrame]; 
[selButton setTitle:@"Select" forState:UIControlStateNormal]; 
[selButton setTitleColor:[UIColor blueColor] forState:UIControlStateNormal]; 
[toolView addSubview:selButton]; 

[selButton addTarget: self 
       action: @selector(dismissRegionSet:) 
forControlEvents: UIControlEventTouchDown]; 

//add the toolbar to the alert controller 
[alert.view addSubview:toolView]; 

[self presentViewController:alert animated:NO completion:nil]; 

Answer 6

alertController = [UIAlertController alertControllerWithTitle:@" \n\n\n\n\n\n\n\n\n\n" 
                 message:@"" 
               preferredStyle:UIAlertControllerStyleActionSheet]; 

closePicker = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:@"Cancel"]]; 
closePicker.momentary = YES; 
closePicker.frame = CGRectMake(25, 0.0f, 50.0f, 30.0f); 
closePicker.segmentedControlStyle = UISegmentedControlStyleBar; 
closePicker.tintColor = [UIColor blackColor]; 
[closePicker addTarget:self action:@selector(dismissActionSheet:) forControlEvents:UIControlEventValueChanged]; 
[alertController.view addSubview:closePicker]; 


UIPickerView *pickerFiliter=[[UIPickerView alloc]init]; 
pickerFiliter = [[UIPickerView alloc] initWithFrame:CGRectMake(0.0, 40.0, 320.0, 120.0)]; 
pickerFiliter.showsSelectionIndicator = YES; 
pickerFiliter.dataSource = self; 
pickerFiliter.delegate = self; 

[alertController.view addSubview:pickerFiliter]; 


[self presentViewController:alertController animated:YES completion:nil]; 


- (IBAction)dismissActionSheet:(id)sender 
{ 

    [alertController dismissViewControllerAnimated:YES completion:nil]; 

} 

Answer 7

Sie Picker wie UIActionSheet in iOS hinzufügen 8 von Objective-C mit: -

colorArray = [[NSMutableArray alloc ]initWithObjects:@"One", @"Two", @"Three", @"Four", @"Five", nil]; 
picker = [[UIPickerView alloc]init]; 
picker.frame = CGRectMake(0.0, 44.0,self.view.frame.size.width, 216.0); 
picker.dataSource = self; 
picker.delegate = self; 
picker.showsSelectionIndicator = true; 
picker.backgroundColor = [UIColor whiteColor]; 

UIToolbar* pickerDateToolbar = [[UIToolbar alloc] initWithFrame: CGRectMake(0, 0, 320, 44)]; //(frame: CGRectMake(0, 0, 320, 44)) 
pickerDateToolbar.barStyle = UIBarStyleBlackTranslucent;//UIBarStyle.Black 
pickerDateToolbar.barTintColor = [UIColor whiteColor]; 
pickerDateToolbar.translucent = true; 
actionView.backgroundColor = [UIColor whiteColor]; 


UILabel* label = [[UILabel alloc] initWithFrame:CGRectMake(150, 5, 150, 20)]; 
label.backgroundColor = [UIColor clearColor]; 
label.textColor = [UIColor blackColor]; 
label.shadowColor = [UIColor blackColor]; 
label.shadowOffset = CGSizeMake(0, 1); 
label.font = [UIFont systemFontOfSize:15];//[UIFont boldSystemFontOfSize:15]; 
label.text = @"Select a Status"; 
UIBarButtonItem *labeltext= [[UIBarButtonItem alloc] initWithCustomView:label]; 


UIBarButtonItem *cancelBtn = [[UIBarButtonItem alloc] initWithTitle:@"Cancel" style:UIBarButtonItemStylePlain target:self action:@selector(cancel_clicked:)]; 

UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]; 

UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStylePlain target:self action:@selector(done_clicked:)]; 

pickerDateToolbar.items = [[NSArray alloc] initWithObjects:cancelBtn,flexSpace,labeltext,doneBtn,nil]; 

cancelBtn.tintColor = [UIColor blueColor]; 
doneBtn.tintColor = [UIColor blueColor]; 

[actionView addSubview:pickerDateToolbar]; 
[actionView addSubview:picker]; 

if (window != nil) { 
[window addSubview:actionView]; 
} 
else 
{ 
[self.view addSubview:actionView]; 
} 

[UIView animateWithDuration:(0.2) animations:^{ 
actionView.frame = CGRectMake(0, self.view.frame.size.height - 260.0, self.view.frame.size.width, 260.0); 
self.view.alpha = 0.5; 
actionView.alpha = 1; 
}]; 

In ViewDidLoad dieses Add,

UIApplication * delegate = [UIApplication sharedApplication]; 
UIWindow *myWindow = delegate.keyWindow; 
NSArray *myWindow2 = delegate.windows; 

if(myWindow == [UIApplication sharedApplication].keyWindow) 
window = myWindow; 
else 
window = myWindow2[0]; 

actionView = [[UIView alloc]initWithFrame:CGRectMake(0, UIScreen.mainScreen.bounds.size.height, UIScreen.mainScreen.bounds.size.width, 240.0)]; 

// Das ist zu Erstellen Sie ActionView und für verblassten Hintergrund, wenn die Auswahl im Popup angezeigt wird.

-(void)cancel_clicked:(id)sender{ 
NSLog(@"cancel clicked"); 
[UIView animateWithDuration:0.2 animations:^{ 
actionView.frame = CGRectMake(0, UIScreen.mainScreen.bounds.size.height - 260.0, UIScreen.mainScreen.bounds.size.width, 260.0); 
} completion:^(BOOL finished) { 
self.view.alpha = 1; 
[actionView removeFromSuperview]; 
}]; 

}

// Abbrechen-Button Click-Methode.

-(void)done_clicked:(id)sender{ 
NSLog(@"done clicked"); 
self.view.userInteractionEnabled = TRUE; 

[UIView animateWithDuration:0.2 animations:^{ 
actionView.frame = CGRectMake(0, UIScreen.mainScreen.bounds.size.height - 260.0, UIScreen.mainScreen.bounds.size.width, 260.0); 
} completion:^(BOOL finished) { 
_permitStatus.text = [colorArray objectAtIndex:[picker selectedRowInComponent:0]]; 
self.view.alpha = 1; 
[actionView removeFromSuperview]; 
}]; 

}

// Für Done-Button klicken.

Answer 8

können Sie ähnlich verwenden, um Code in In iOS8/Swift Ihre eigenen Kontrollen in einen Alarm hinzuzufügen (anstelle eines Aktionsblatt), die in der Mitte des Bildschirms erscheint.

Das einzige Problem, das ich dabei mit alert.addSubView hatte, war, dass sich die Alarmansicht nur anhand der Steuerelemente, die Sie über die Klassenmethoden hinzugefügt haben, selbst anpasst. Sie müssen dann Ihre eigenen Einschränkungen hinzufügen, um sicherzustellen, dass die Warnung alle Ihre Steuerelemente umfasst.

ich hier ein Beispiel, wie die ursprüngliche Frage für Alarm oder ActionSheet

func addAlert(){ 

    // create the alert 
    let title = "This is the title" 
    let message = "This is the message" 
    var alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.Alert); 
    alert.modalInPopover = true; 

    // add an action button 
    let nextAction: UIAlertAction = UIAlertAction(title: "Action", style: .Default){action->Void in 
     // do something 
    } 
    alert.addAction(nextAction) 

    // now create our custom view - we are using a container view which can contain other views 
    let containerViewWidth = 250 
    let containerViewHeight = 120 
    var containerFrame = CGRectMake(10, 70, CGFloat(containerViewWidth), CGFloat(containerViewHeight)); 
    var containerView: UIView = UIView(frame: containerFrame); 

    alert.view.addSubview(containerView) 

    // now add some constraints to make sure that the alert resizes itself 
    var cons:NSLayoutConstraint = NSLayoutConstraint(item: alert.view, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.GreaterThanOrEqual, toItem: containerView, attribute: NSLayoutAttribute.Height, multiplier: 1.00, constant: 130) 

    alert.view.addConstraint(cons) 

    var cons2:NSLayoutConstraint = NSLayoutConstraint(item: alert.view, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.GreaterThanOrEqual, toItem: containerView, attribute: NSLayoutAttribute.Width, multiplier: 1.00, constant: 20) 

    alert.view.addConstraint(cons2) 

    // present with our view controller 
    presentViewController(alert, animated: true, completion: nil) 

} 

Answer 9

Swift 2.0 gefragt haben hinzugefügt:

Machen Sie eine Probe picker oder Segmentansicht und fügen Sie es als uialercontroller des subview. Implementieren Sie uipickerview Delegaten und präsentieren Sie den UAlertcontroller. Hier ist, wie ich das gleiche erreicht habe.

class ViewController: 

    UIViewController,UIPickerViewDataSource,UIPickerViewDelegate { 

    var samplePicker: UIPickerView = UIPickerView() 
    var sampleSegment:UISegmentedControl = UISegmentedControl() 
    var alertController:UIAlertController = UIAlertController() 
    var buildings:[String] = ["BankBuilding", "Cinema" , "CornerShop", "Greg's House","14th Street"] 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     samplePicker = UIPickerView(frame: CGRectMake(10.0, 40.0, 250, 150)) 
     samplePicker.delegate = self; 
     samplePicker.dataSource = self; 
     samplePicker.showsSelectionIndicator = true 
     samplePicker.tintColor = UIColor.redColor() 
     samplePicker.reloadAllComponents() 


     sampleSegment = UISegmentedControl(items: NSArray(object: " Dismiss ") as [AnyObject]) 
     sampleSegment.momentary = true 
     sampleSegment.frame = CGRectMake(25, 10.0, 100.0, 30.0) 
     sampleSegment.tintColor = UIColor.blackColor() 
     sampleSegment.backgroundColor = UIColor.orangeColor() 
     sampleSegment.addTarget(self, action: "dismissAlert", forControlEvents: UIControlEvents.ValueChanged) 

    } 
    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int { 

     return 1 
    } 

    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { 
     return 3 
    } 

    func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? { 

     return buildings[row] as String 
    } 

    func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) { 
     print(buildings[0]) 

    } 
    func pickerView(pickerView: UIPickerView, rowHeightForComponent component: Int) -> CGFloat { 
     return 36.0 
    } 
    override func viewDidAppear(animated: Bool) 
    { 
     alertController = UIAlertController(title: " \n\n\n\n\n\n\n\n\n\n", message: "", preferredStyle: UIAlertControllerStyle.Alert) 

     alertController.view.addSubview(sampleSegment) 
     alertController.view.addSubview(samplePicker) 

     self.presentViewController(alertController, animated: true, completion: nil) 

    } 
    func dismissAlert() 
    { 
     alertController.dismissViewControllerAnimated(true, completion: nil) 
    } 
    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 

    } 
    } 

Answer 10

Swift 3.0:

func showPickerInActionSheet() { 

    let title = "" 
    let message = "\n\n\n\n\n\n\n\n\n\n"; 
    let alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.actionSheet); 
    alert.isModalInPopover = true; 


    //Create a frame (placeholder/wrapper) for the picker and then create the picker 
    let pickerFrame = CGRect(x: 17, y: 52, width: 270, height: 100) 
    let picker: UIPickerView = UIPickerView(frame: pickerFrame) 


    //set the pickers datasource and delegate 
    picker.delegate = self 
    picker.dataSource = self 

    //Add the picker to the alert controller 
    alert.view.addSubview(picker) 

    //Create the toolbar view - the view witch will hold our 2 buttons 
    let toolFrame = CGRect(x: 17, y: 5, width: 270, height: 45) 
    let toolView: UIView = UIView(frame: toolFrame) 


    //add buttons to the view 
    let buttonCancelFrame = CGRect(x: 0, y: 7, width: 100, height: 30) //size & position of the button as placed on the toolView 

    //Create the cancel button & set its title 
    let buttonCancel: UIButton = UIButton(frame: buttonCancelFrame); 
    buttonCancel.setTitle("Cancel", for: .normal) 
    buttonCancel.setTitleColor(UIColor.blue, for: .normal) 
    toolView.addSubview(buttonCancel); //add it to the toolView 

    //Add the target - target, function to call, the event witch will trigger the function call 
    buttonCancel.addTarget(self, action: Selector("cancelSelection:"), for: UIControlEvents.touchDown); 


    //add buttons to the view 

    let buttonOkFrame = CGRect(x: 170, y: 7, width: 100, height: 30)//size & position of the button as placed on the toolView 

    //Create the Select button & set the title 
    let buttonOk: UIButton = UIButton(frame: buttonOkFrame); 
    buttonOk.setTitle("Select", for: UIControlState.normal); 
    buttonOk.setTitleColor(UIColor.blue, for: UIControlState.normal); 
    toolView.addSubview(buttonOk); //add to the subview 

    buttonOk.addTarget(self, action: #selector(HomeViewController.saveDelayTime), for: UIControlEvents.touchDown); 

    //add the toolbar to the alert controller 
    alert.view.addSubview(toolView); 

    self.present(alert, animated: true, completion: nil); 
} 

func saveProfile(sender: UIButton){ 
    // Your code when select button is tapped 

} 

func saveUser(sender: UIButton){ 
    // Your code when select button is tapped 
} 

func cancelSelection(sender: UIButton){ 
    self.dismiss(animated: true, completion: nil) 

    // We dismiss the alert. Here you can add your additional code to execute when cancel is pressed 
} 

// returns number of rows in each component.. 
func numberOfComponents(in pickerView: UIPickerView) -> Int{ 
    return 1 
} 

func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { 
    return 60 
} 

// Return the title of each row in your picker ... In my case that will be the profile name or the username string 
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? { 
    return "\(row)" 

} 

func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) { 
    selectedTime = row 
} 

func saveDelayTime() { 
    self.dismiss(animated: true, completion: nil) 
    UserDefaults.standard.set(selectedTime, forKey: "DelayTimeKey") 
    let _ = UserDefaults.standard.synchronize() 
}