SwiftのUIAlertController（アラートまたはアクションシート）にUIPickerViewを追加する方法はありますか？

Question

私はSwift（およびiOSプログラミング））にまったく慣れていませんが、それをいじり始めました（すべてがまだベータ版であるとき、それは良い考えではありませんでした：D）。自分でそれを理解しようとしましたが、それでも何もできませんでした。

Answer 1

まあこれは私のために働いた私の最終的なコードです。いくつかのアイデアによるミックスです。私が答えを受け入れる主な理由は、コードがSwiftにあり、コードがUIAlertControllerを使用していること、コードがピッカー用であることです。私はJageenに感謝したい-私の答えは彼の考えに基づいています。

    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

In iOS8/Swift）で同様のコードを使用して、画面の中央にポップアップする独自のコントロールを（アクションシートの代わりに）アラートに追加できます。

Alert.addSubViewを使用してこれを行う際に発生した唯一の問題は、アラートビューのサイズが、クラスメソッドを介して追加したコントロールに応じてのみ変化することでした。次に、独自の制約を追加して、アラートにすべてのコントロールが含まれるようにします。

AlertまたはActionSheetを要求する元の質問として、ここに例を追加しました

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 3

私は同じことをする必要があり、これは私がそれを解決した方法です。私はJageenに似たようなことをしました。私のコードは以下です。コードの別の部分のUIPickerViewに値を入れていることに注意してください。

//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 4

IOS 8では、Objective-Cを使用してUIActionSheetのようなピッカーを追加できます。

 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;
}];

ViewDidLoadでこれを追加し、

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)];

//これは、ポップアップにピッカーが表示されたときに、ActionViewを作成し、背景をフェードするためです。

-(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];
}];

}

//ボタンクリックメソッドをキャンセルします。

-(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];
}];

}

//完了ボタンクリックの場合。

Answer 5

ベータ版から始めることは悪い考えではないと思います。カスタムUIAlertViewが必要です。 UIAlertControllerに注意してください。iOS8.0ではのみ利用可能です。

ある と ある を見てください

Answer 6

Swift 4.1/Xcode 9.4.1/iOS 11.4

func addAlert(){

    // create the alert
    let title = "This is the title"
    let message = "This is the message"
    let alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.alert);
    alert.isModalInPopover = 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
    let containerFrame = CGRect(x:10, y: 70, width: CGFloat(containerViewWidth), height: CGFloat(containerViewHeight));
    let containerView: UIView = UIView(frame: containerFrame);

    alert.view.addSubview(containerView)

    // now add some constraints to make sure that the alert resizes itself
    let 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)

    let 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
    present(alert, animated: true, completion: nil)

}

Answer 7

これが githubプロジェクト で、画面の中央にUIDatePickerがポップアップします。 UIAlertControllerまたはUIAlertViewは使用しません。それがアラートクラスの意図ではないと思います。

Answer 8

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 9

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()
}

Answer 10

Swift 2.0：

サンプルピッカービューまたはセグメントビューを作成し、それをuialercontrollerのサブビューとして追加します。 uipickerviewデリゲートを実装し、uialertcontrollerを提示します。ここに私が同じことを達成した方法があります。

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()

     }
    }