Add Buttons to Uipickerview - Swift 1.2

Add buttons to UIPickerView - Swift 1.2

I have solved this, answer in Swift:

var pickerView = UIPickerView(frame: CGRectMake(0, 200, view.frame.width, 300))
pickerView.backgroundColor = .whiteColor()
pickerView.showsSelectionIndicator = true

var toolBar = UIToolbar()
toolBar.barStyle = UIBarStyle.Default
toolBar.translucent = true
toolBar.tintColor = UIColor(red: 76/255, green: 217/255, blue: 100/255, alpha: 1)
toolBar.sizeToFit()

let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Bordered, target: self, action: "donePicker")
let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
let cancelButton = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.Bordered, target: self, action: "canclePicker")

toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false)
toolBar.userInteractionEnabled = true

textField.inputView = pickerView
textField.inputAccessoryView = toolBar

Swift 1.2 - Updating the UIPickerView initial row according to NSUserDefaults value

Once you set the value in NSUserDefaults, you need to synchronize it.
Put the below line once you save the data and then try to retrieve.

if(row == 0)
{
     self.view.backgroundColor = UIColor.whiteColor()
     defaults.setDouble(5.0, forKey: "radiusForMessages")
     defaults.synchronize()
     self.kRadiusMessages = defaults.doubleForKey("radiusForMessages")
      println("value for kRadiusMessages is : *\(kRadiusMessages)*")
}

Edited: You can set the initial row using the following line

self.pickerView.selectRow(0, inComponent: 0, animated: true)

Hope this helps!

UIBarButtonItem not clickable in UIToolBar

Can you try this codes.

    var textField = UITextField(frame: CGRectMake(20, 50, view.width - 40, 30))
    textField.backgroundColor = UIColor.redColor()
    view.addSubview(textField)

    var pickerView = UIPickerView(frame: CGRectMake(0, 200, view.width, 300))
    pickerView.backgroundColor = UIColor.whiteColor()
    pickerView.showsSelectionIndicator = true

    var toolBar = UIToolbar()
    toolBar.barStyle = UIBarStyle.Default
    toolBar.translucent = true
    toolBar.tintColor = UIColor(red: 76/255, green: 217/255, blue: 100/255, alpha: 1)
    toolBar.sizeToFit()

    var doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Bordered, target: self, action: "donePicker")
    var spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
    var cancelButton = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.Bordered, target: self, action: "canclePicker")

    toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false)
    toolBar.userInteractionEnabled = true

    textField.inputView = pickerView
    textField.inputAccessoryView = toolBar

Formatting alignment of uipickerview

This should get you started:

func pickerView(pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView!) -> UIView {
        let pickerLabel = UILabel()
        let titleData = pickerData[row]
        let myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: 26.0)!,NSForegroundColorAttributeName:UIColor.blackColor()])
        pickerLabel.attributedText = myTitle
       return pickerLabel
    }

and this:

func pickerView(pickerView: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? {
    let titleData = pickerData[row]
    var myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: 15.0)!,NSForegroundColorAttributeName:UIColor.blueColor()])
    return myTitle
}

For the Attributed string, this is where you can modified the text attributes to fit what you want, you can set up something like this, you'll have to figure out how to place the Attributed string, but it's very simple using the second method above:

var myString1 = NSMutableAttributedString(string:"$45.45")

let myString1Font1 = UIFont(name:"AvenirNext-Regular", size:24.0)

let myString1Color1 = UIColor(red: 0.292745, green: 0.461693, blue: 0.998524, alpha: 1.000000)

let originalNSString = myString1.string as NSString
let myString1Range1 = originalNSString.rangeOfString("$45.45")

var myString1ParaStyle1 = NSMutableParagraphStyle()
myString1ParaStyle1.alignment = NSTextAlignment.Right
myString1ParaStyle1.baseWritingDirection = NSWritingDirection.Natural
myString1ParaStyle1.defaultTabInterval = 0
myString1ParaStyle1.firstLineHeadIndent = 0
myString1ParaStyle1.headIndent = 0
myString1ParaStyle1.hyphenationFactor = 0
myString1ParaStyle1.lineBreakMode = NSLineBreakMode.ByWordWrapping
myString1ParaStyle1.lineHeightMultiple = 0
myString1ParaStyle1.lineSpacing = 0
myString1ParaStyle1.maximumLineHeight = 0
myString1ParaStyle1.minimumLineHeight = 0
myString1ParaStyle1.paragraphSpacing = 0
myString1ParaStyle1.paragraphSpacingBefore = 0
myString1ParaStyle1.tailIndent = 0

myString1.addAttribute(NSUnderlineColorAttributeName, value:myString1Color1, range:myString1Range1)
myString1.addAttribute(NSParagraphStyleAttributeName, value:myString1ParaStyle1, range:myString1Range1)
myString1.addAttribute(NSFontAttributeName, value:myString1Font1!, range:myString1Range1)

This seems to work:

func pickerView(pickerView: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? {
    let titleData = pickerData[row]

    var myString1 = NSMutableAttributedString(string:titleData)
    let myString1Font1 = UIFont(name:"AvenirNext-Regular", size:24.0)
    let myString1Color1 = UIColor(red: 0.292745, green: 0.461693, blue: 0.998524, alpha: 1.000000)
    let originalNSString = myString1.string as NSString
    let myString1Range1 = originalNSString.rangeOfString(titleData)
    var myString1ParaStyle1 = NSMutableParagraphStyle()
    myString1ParaStyle1.baseWritingDirection = NSWritingDirection.Natural
    myString1ParaStyle1.lineBreakMode = NSLineBreakMode.ByWordWrapping
    myString1.addAttribute(NSUnderlineColorAttributeName, value:myString1Color1, range:myString1Range1)
    myString1.addAttribute(NSParagraphStyleAttributeName, value:myString1ParaStyle1, range:myString1Range1)
    myString1.addAttribute(NSFontAttributeName, value:myString1Font1!, range:myString1Range1)

    if pickerView == myPickerf {
        myString1ParaStyle1.alignment = NSTextAlignment.Left
    } else if pickerView == myPicker {
        myString1ParaStyle1.alignment = NSTextAlignment.Right
    }

    return myString1
}

func pickerView(pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView!) -> UIView {
    var pickerLabel = view as! UILabel!
    if view == nil {
        pickerLabel = UILabel()
        let hue = CGFloat(row)/CGFloat(pickerData.count)
        pickerLabel.backgroundColor = UIColor(hue: hue, saturation: 1.0, brightness:1.0, alpha: 1.0)
    }
    let titleData = pickerData[row]
    var myString1 = NSMutableAttributedString(string:titleData)
    let myString1Font1 = UIFont(name:"AvenirNext-Regular", size:24.0)
    let myString1Color1 = UIColor(red: 0.292745, green: 0.461693, blue: 0.998524, alpha: 1.000000)
    let originalNSString = myString1.string as NSString
    let myString1Range1 = originalNSString.rangeOfString(titleData)
    var myString1ParaStyle1 = NSMutableParagraphStyle()
    myString1ParaStyle1.baseWritingDirection = NSWritingDirection.Natural
    myString1ParaStyle1.lineBreakMode = NSLineBreakMode.ByWordWrapping
    myString1.addAttribute(NSUnderlineColorAttributeName, value:myString1Color1, range:myString1Range1)
    myString1.addAttribute(NSParagraphStyleAttributeName, value:myString1ParaStyle1, range:myString1Range1)
    myString1.addAttribute(NSFontAttributeName, value:myString1Font1!, range:myString1Range1)
    pickerLabel!.attributedText = myString1

    if pickerView == myPickerf {
        myString1ParaStyle1.alignment = NSTextAlignment.Left
    } else if pickerView == myPicker {
        myString1ParaStyle1.alignment = NSTextAlignment.Right
    }

    return pickerLabel
}

Here's your code reformatted, this should work:

import Foundation
import UIKit

class LocationViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {

    @IBOutlet weak var DisplayStartMileage: UITextField!
    @IBOutlet weak var labelFuelAmount: UILabel!
    @IBOutlet weak var spinFuelAmount: UIPickerView!

    var mileageToPass: String!

    var fuelAmount: Double = 0.00

    var pickerData = [[String]]()

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        var poundValues = [String]()
        var penceValues = [String]()
        for var indexP:Int = 0; indexP < 100; indexP += 1 {
            poundValues.append("£ \(indexP)")
            penceValues.append(NSString(format: ".%02d", indexP) as String)
        }

        self.pickerData = [poundValues, penceValues]

        spinFuelAmount.delegate = self
        spinFuelAmount.dataSource = self

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    @IBAction func FuelSegmentChanged(sender: UISegmentedControl) {

        switch sender.selectedSegmentIndex
        {
        case 0:
            labelFuelAmount.hidden = false
            spinFuelAmount.hidden = false

        case 1:
            labelFuelAmount.hidden = true
            spinFuelAmount.hidden = true

        default:
            break;
        }

    }

    func numberOfComponentsInPickerView(spinFuelAmount: UIPickerView) -> Int {
        return pickerData.count
    }

    func pickerView(spinFuelAmount: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return pickerData[component].count
    }

    func pickerView(spinFuelAmount: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String! {
        return pickerData[component][row]
    }

    func pickerView(spinFuelAmount: UIPickerView, didSelectRow row: Int, inComponent component: Int) {

        var firstComponent = pickerData[0][spinFuelAmount.selectedRowInComponent(0)]
        firstComponent = firstComponent.stringByReplacingOccurrencesOfString( "£ ", withString: "" )

        var secondComponent = pickerData[1][spinFuelAmount.selectedRowInComponent(1)]
        secondComponent = secondComponent.stringByReplacingOccurrencesOfString( ".", withString: "" )

        if let firstValue = firstComponent.toInt(), let secondValue = secondComponent.toInt() {
            let fuelAmount = firstValue + secondValue / 100
        }

    }

    func pickerView(spinFuelAmount: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? {

        let titleData = pickerData[component][row] //this is bad, you'll have to compute what to do about this, but you get the point
        var myString1 = NSMutableAttributedString(string:titleData)
        let myString1Font1 = UIFont(name:"AvenirNext-Regular", size:24.0)
        let myString1Color1 = UIColor(red: 0.292745, green: 0.461693, blue: 0.998524, alpha: 1.000000)
        let originalNSString = myString1.string as NSString
        let myString1Range1 = originalNSString.rangeOfString(titleData)
        var myString1ParaStyle1 = NSMutableParagraphStyle()
        myString1ParaStyle1.baseWritingDirection = NSWritingDirection.Natural
        myString1ParaStyle1.lineBreakMode = NSLineBreakMode.ByWordWrapping
        myString1.addAttribute(NSUnderlineColorAttributeName, value:myString1Color1, range:myString1Range1)
        myString1.addAttribute(NSParagraphStyleAttributeName, value:myString1ParaStyle1, range:myString1Range1)
        myString1.addAttribute(NSFontAttributeName, value:myString1Font1!, range:myString1Range1)

        if component == 0 {
            myString1ParaStyle1.alignment = NSTextAlignment.Left
        } else if component == 1 {
            myString1ParaStyle1.alignment = NSTextAlignment.Right
        }

        return myString1
    }

    func pickerView(spinFuelAmount: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView!) -> UIView {

        var pickerLabel = view as! UILabel!
        if view == nil {
            pickerLabel = UILabel()
            let hue = CGFloat(row)/CGFloat(pickerData.count)
            pickerLabel.backgroundColor = UIColor(hue: hue, saturation: 1.0, brightness:1.0, alpha: 1.0)
        }
        let titleData = pickerData[component][row]
        var myString1 = NSMutableAttributedString(string:titleData)
        let myString1Font1 = UIFont(name:"AvenirNext-Regular", size:24.0)
        let myString1Color1 = UIColor(red: 0.292745, green: 0.461693, blue: 0.998524, alpha: 1.000000)
        let originalNSString = myString1.string as NSString
        let myString1Range1 = originalNSString.rangeOfString(titleData)
        var myString1ParaStyle1 = NSMutableParagraphStyle()
        myString1ParaStyle1.baseWritingDirection = NSWritingDirection.Natural
        myString1ParaStyle1.lineBreakMode = NSLineBreakMode.ByWordWrapping
        myString1.addAttribute(NSUnderlineColorAttributeName, value:myString1Color1, range:myString1Range1)
        myString1.addAttribute(NSParagraphStyleAttributeName, value:myString1ParaStyle1, range:myString1Range1)
        myString1.addAttribute(NSFontAttributeName, value:myString1Font1!, range:myString1Range1)
        pickerLabel!.attributedText = myString1

        if component == 0 {
            myString1ParaStyle1.alignment = NSTextAlignment.Left
        } else if component == 1 {
            myString1ParaStyle1.alignment = NSTextAlignment.Right
        }

        return pickerLabel
    }
}

You will need to check my work and make sure that when THIS is called:

let titleData = pickerData[component][row]

that it's actually pointing to the correct dictionary item which is either Pounds or Pense. I actually looked at your code, more and I see that you had pickerData[component][row] already, so I reformated and then used these for the mutableatributed string callers. see the revised code which is really your code but with the correction

donePicker: unrecognized selector sent to instance

you forget to implement the action of donePicker and canclePicker button do like

func donePicker () //Create an IBAction
    {
   // do something

  }

func canclePicker () //Create an IBAction
    {
   // do something

  }

full code

  let toolBar = UIToolbar()
    toolBar.barStyle = UIBarStyle.Default
    toolBar.translucent = true
    toolBar.tintColor = UIColor(red: 76/255, green: 217/255, blue: 100/255, alpha: 1)
    toolBar.sizeToFit()

    let doneButton = UIBarButtonItem(title: "Done", style:.Plain, target: self, action: #selector(ViewController.donePicker))
    let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
    let cancelButton = UIBarButtonItem(title: "Cancel", style:.Plain, target: self, action: #selector(ViewController.canclePicker))

    toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false)
    toolBar.userInteractionEnabled = true

action like

func donePicker () //Create an IBAction
{
    // do something

}

func canclePicker () //Create an IBAction
{
    // do something

}

How can I add a toolbar above the keyboard?

UIToolbar* numberToolbar = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.width, 50)];
numberToolbar.barStyle = UIBarStyleBlackTranslucent;
numberToolbar.items = [NSArray arrayWithObjects:
                               [[UIBarButtonItem alloc]initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:self action:@selector(cancelNumberPad)],
                               [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil],
                               [[UIBarButtonItem alloc]initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(doneWithNumberPad)],
                               nil];
[numberToolbar sizeToFit];
phonenumberTextField.inputAccessoryView = numberToolbar;

To Dismiss Keyboard:

[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil];

---

Swift 3:

let numberToolbar = UIToolbar(frame: CGRectMake(0, 0, UIScreen.mainScreen().bounds.width, 50))
numberToolbar.barStyle = UIBarStyle.Default
numberToolbar.items = [
            UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.Plain, target: self, action: "cancelNumberPad"),
            UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil),
            UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Plain, target: self, action: "doneWithNumberPad")]
    numberToolbar.sizeToFit()
    phonenumberTextField.inputAccessoryView = numberToolbar

Swift 4.2:

let numberToolbar = UIToolbar(frame:CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
numberToolbar.barStyle = .default
numberToolbar.items = [
UIBarButtonItem(title: "Cancel", style: .plain, target: self, action: #selector(cancelNumberPad)),
UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil),
UIBarButtonItem(title: "Done", style: .plain, target: self, action: #selector(doneWithNumberPad))]
numberToolbar.sizeToFit()
phonenumberTextField.inputAccessoryView = numberToolbar

...

@objc func cancelNumberPad() {
    //Cancel with number pad
}
@objc func doneWithNumberPad() {
    //Done with number pad
}

---

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