How To Add Animation To Image Xcode

This guide volition demonstrate one method for creating a repeating "flip book" or animated gif event given multiple images. We volition use a method, animatedImageWithImages() that can be called on a UIImageView in gild to cycle through a collection of images at a duration that we will specify.

Pace one: Add together Your Epitome Assets

Make sure the images for your blitheness are all the aforementioned size.

• Add the image avails that you want to use every bit "frames" in your animation to the Avails.xcassets folder. View the Adding Image Avails article to learn how to add epitome avails to your views.

Pace two: Add together an ImageView

We will hold our image animation in a UIImageView. It will need to be the same size as our image "frames".

• Add a UIImageView to your ViewController. You lot can do this in Storyboard or programmatically. View the Using UIImageView commodity to larn how to use the UIImageView form. HINT: A elementary mode is to only drag the first image "frame" on to the Storyboard from the Media Library at the bottom of the Utilities pane and it will automatically create an ImageView the correct size of your image frame.
• If you created your ImageView in Storyboard, create an outlet to your ViewController code file by ctrl + drag from the ImageView.

Step 3: Declare Your Instance Variables

Instance Variables are declared below the class ViewController: UIViewController { and above the override func viewDidLoad() {

• Define instance variables for your images.

                      var            loading_1            :            UIImage            !            var            loading_2            :            UIImage            !            var            loading_3            :            UIImage            !                  

Nosotros will need to shop our images an array in order to easily reference them for our animation.

• Define an example variable for your images array.
• Note: images is plural because it will contain multiple images. [UIImage]! ways it will contain a collection of items, each detail beingness of type, UIImage.

                      var            images            :            [            UIImage            ]            !                  

We will shop our blithe paradigm into another variable of blazon UIImage.

• Define an case variable for your animated image.

                      var            animatedImage            :            UIImage            !                  

Step iv: Assign Values to Your Variables

Assign values to the variables y'all alleged above inside the viewDidLoad() method.

• Assign the paradigm files in your avails to your image variables.

                      loading_1            =            UIImage            (            named            :            "loading-1"            )            loading_2            =            UIImage            (            named            :            "loading-2"            )            loading_3            =            UIImage            (            named            :            "loading-iii"            )                  

• Put your images into your images array.

                      images            =            [            loading_1            ,            loading_2            ,            loading_3            ]                  

• Call the animatedImageWithImages method and store it in animatedImage This method takes two arguments
  • The array of images you want it to cycle through
  • The duration you lot want it to cycle at in seconds. Significant information technology will become through all the frames in that time.

                      animatedImage            =            UIImage            .            animatedImage            (            with            :            images            ,            duration            :            1.0            )                  

• Gear up the image inside your ImageView to exist, animatedImage.

                      ImageView            .            epitome            =            animatedImage                  

Footstep 5: Run Your App!

Source: https://guides.codepath.com/ios/Animating-A-Sequence-of-Images

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