How to Add UIToolbar with two button in UIPickerView(swift 2.0)? - ios

Question

I would like to add two UIButtons in the UIPickerView (on bottom of it). Please take a look at the Cancel and Done buttons in this image:
Here My code Upload:-
class DatePicker{
var containerView = UIView()
var datePicker = UIView()
var datePickerView = UIDatePicker()
var toolBar = UIToolbar()
internal class var shared: DatePicker {
struct Static {
static let instance: DatePicker = DatePicker()
}
return Static.instance
}
internal func showProgressView(view: UIView) {
containerView.frame = view.frame
containerView.center = view.center
containerView.backgroundColor = UIColor(hex: 0xffffff, alpha: 0.3)
datePickerView.datePickerMode = .Date
datePicker.frame = CGRectMake(0, 0, 250, 250)
datePicker.center = view.center
datePicker.backgroundColor = UIColor(hex: 0x444444, alpha: 0.7)
datePicker.clipsToBounds = true
datePicker.layer.cornerRadius = 10
datePickerView.setValue(UIColor.whiteColor(), forKeyPath: "textColor")
datePickerView.frame = CGRectMake(0, 0, 250, 250)
datePicker.addSubview(datePickerView)
containerView.addSubview(datePicker)
view.addSubview(containerView)
}
internal func hideProgressView() {
containerView.removeFromSuperview()
}
}
How can i get UIToolbar And Two Button?

Answer 1

I would recommend making a .xib with the toolbar and picker view in it. Put two bar buttons on the bar and put a bar button spacer in between them.
Link on how to use a xib
You can make the animation of it appearing look great if you start its frame off screen and use this function to move it on screen.
UIView.animateWithDuration(0.5, delay: 0, usingSpringWithDamping: 0.8, initialSpringVelocity: 0, options: .CurveEaseInOut, animations: {
if viewToMove != nil {
viewToMove!.frame.origin.y/*orX*/ = onScreenPosition
} else {
"sidePanel == nil"
}
}, completion: completion)
usingSpringWithDamping can be set to 1 if you don't want any bounce in animation. If this is for an iPhone, i would recommend making the initial frame equal to something like
CGRectMake(0, UIScreen.mainScreen().bounds.height, UIScreen.mainScreen().bounds.width, UIScreen.mainScreen().bounds.height/2)
and then the view to move line would become
viewToMove!.frame.origin.y = UIScreen.mainScreen().bounds.height/2
using the previous function to bring it on screen and
viewToMove!.frame.origin.y = UIScreen.mainScreen().bounds.height
to move it off screen. You can access the buttons of the xib in a few different ways, but I recommend using a delegate.
Here is a guide to them.
If you are not familiar with them, I would become familiar, because they are very useful! If you have any questions don't hesitate to ask!