UIActivityIndicatorView

• Description
• Example
• Instructions
• Code
• Links

UIActivityIndicatorView displays a gear to show a task is in progress.

1. Open Xcode
2. Click File
3. Click New
4. Click Project...
5. Under iOS, click Application
6. Click Single View Application
7. Click Next
8. After Product Name, type your product name
9. After Organization Name, type your organization name or leave blank
10. After Organization Identifier, type your organization identifier
11. After Language, select Swift
12. After Devices, select Universal
13. Uncheck Use Core Data
14. Click Next
15. Select a folder
16. After Source Control, uncheck Create Git repository on
17. Click Create

1. Open ViewController.swift
2. Copy and paste code

1. Open Main.storyboard
2. Click View
3. Click Utilities
4. Click Show Object Library
5. Drag Activity Indicator View to View
6. Click View
7. Click Utilities
8. Click Show Connections Inspector
9. Under Referencing Outlets, after New Referencing Outlet, drag + to View Controller
10. Click interfaceBuilderActivityIndicatorView

1. Click Product
2. Click Run

import UIKit

class ViewController: UIViewController
{
    @IBOutlet weak var interfaceBuilderActivityIndicatorView: UIActivityIndicatorView!
    
    override func prefersStatusBarHidden() -> Bool
    {
        return true
    }
    override func viewDidLoad()
    {
        super.viewDidLoad()

        self.view.backgroundColor = UIColor.lightGrayColor()
        
        self.interfaceBuilderActivityIndicatorView.startAnimating()
        self.view.removeConstraints(self.view.constraints())

        let whiteLargeActivityIndicatorView = UIActivityIndicatorView()
        whiteLargeActivityIndicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.WhiteLarge
        whiteLargeActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        whiteLargeActivityIndicatorView.startAnimating()
        self.view.addSubview(whiteLargeActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: whiteLargeActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: self.interfaceBuilderActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let whiteActivityIndicatorView = UIActivityIndicatorView()
        whiteActivityIndicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.White
        whiteActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        whiteActivityIndicatorView.startAnimating()
        self.view.addSubview(whiteActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: whiteActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: self.interfaceBuilderActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: whiteActivityIndicatorView, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: whiteLargeActivityIndicatorView, attribute: NSLayoutAttribute.Right, multiplier: 1, constant: 0))
        
        let grayActivityIndicatorView = UIActivityIndicatorView()
        grayActivityIndicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
        grayActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        grayActivityIndicatorView.startAnimating()
        self.view.addSubview(grayActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: grayActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: self.interfaceBuilderActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: grayActivityIndicatorView, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: whiteActivityIndicatorView, attribute: NSLayoutAttribute.Right, multiplier: 1, constant: 0))
        
        let colorLargeActivityIndicatorView = UIActivityIndicatorView()
        colorLargeActivityIndicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.WhiteLarge
        colorLargeActivityIndicatorView.color = UIColor.redColor()
        colorLargeActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        colorLargeActivityIndicatorView.startAnimating()
        self.view.addSubview(colorLargeActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: colorLargeActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: whiteLargeActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        
        let colorActivityIndicatorView = UIActivityIndicatorView()
        colorActivityIndicatorView.color = UIColor.redColor()
        colorActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        colorActivityIndicatorView.startAnimating()
        self.view.addSubview(colorActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: colorActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: whiteLargeActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: colorActivityIndicatorView, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: colorLargeActivityIndicatorView, attribute: NSLayoutAttribute.Right, multiplier: 1, constant: 0))
        
        let startAnimatingLargeActivityIndicatorView = UIActivityIndicatorView()
        startAnimatingLargeActivityIndicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.WhiteLarge
        startAnimatingLargeActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        startAnimatingLargeActivityIndicatorView.startAnimating()
        self.view.addSubview(startAnimatingLargeActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: startAnimatingLargeActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: colorLargeActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        
        let startAnimatingActivityIndicatorView = UIActivityIndicatorView()
        startAnimatingActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        startAnimatingActivityIndicatorView.startAnimating()
        self.view.addSubview(startAnimatingActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: startAnimatingActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: colorLargeActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: startAnimatingActivityIndicatorView, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: startAnimatingLargeActivityIndicatorView, attribute: NSLayoutAttribute.Right, multiplier: 1, constant: 0))
        
        let stopAnimatingLargeActivityIndicatorView = UIActivityIndicatorView()
        stopAnimatingLargeActivityIndicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.WhiteLarge
        stopAnimatingLargeActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        stopAnimatingLargeActivityIndicatorView.stopAnimating()
        self.view.addSubview(stopAnimatingLargeActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: stopAnimatingLargeActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: startAnimatingLargeActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        
        let stopAnimatingActivityIndicatorView = UIActivityIndicatorView()
        stopAnimatingActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        stopAnimatingActivityIndicatorView.stopAnimating()
        self.view.addSubview(stopAnimatingActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: stopAnimatingActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: startAnimatingLargeActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: stopAnimatingActivityIndicatorView, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: stopAnimatingLargeActivityIndicatorView, attribute: NSLayoutAttribute.Right, multiplier: 1, constant: 0))
        
        let hidesWhenStoppedLargeActivityIndicatorView = UIActivityIndicatorView()
        hidesWhenStoppedLargeActivityIndicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.WhiteLarge
        hidesWhenStoppedLargeActivityIndicatorView.hidesWhenStopped = false
        hidesWhenStoppedLargeActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        hidesWhenStoppedLargeActivityIndicatorView.stopAnimating()
        self.view.addSubview(hidesWhenStoppedLargeActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: hidesWhenStoppedLargeActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: stopAnimatingLargeActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        
        let hidesWhenStoppedActivityIndicatorView = UIActivityIndicatorView()

        hidesWhenStoppedActivityIndicatorView.hidesWhenStopped = false
        hidesWhenStoppedActivityIndicatorView.setTranslatesAutoresizingMaskIntoConstraints(false)
        hidesWhenStoppedActivityIndicatorView.stopAnimating()
        self.view.addSubview(hidesWhenStoppedActivityIndicatorView)
        self.view.addConstraint(NSLayoutConstraint(item: hidesWhenStoppedActivityIndicatorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: stopAnimatingLargeActivityIndicatorView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: hidesWhenStoppedActivityIndicatorView, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: hidesWhenStoppedLargeActivityIndicatorView, attribute: NSLayoutAttribute.Right, multiplier: 1, constant: 0))
    }
}

Apple UIKit