I have 3 GIFs outside the Assets folder and I'm trying to pass the data from a table view to next view controller. I have two tables, created outlet to UIImageView. ThirdView.swift contains struct:
FirstTableViewController.swift contains arrays of gifs, which I would like to pass to imageViews (I tried to pass imageLiteral and also UIImage.gif(name: "nameOfGif")!):
ExercisesViewController contains:
I used this script to load Gifs:
And the problem is, although it loads working gif, it shows the same gif, even though I am entering different imageLiterals or different name of the images.
What am I missing?
Code:
struct ThirdView {
var ThirdViewArray = [String]()
var Pic = [String]()
}
Code:
class FirstTableViewController: UITableViewController {
var BodyPartsArray = [String]()
var SecondArray = [SecondTable]()
var ThirdArray = [ThirdView]()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
BodyPartsArray = ["Neck", "Shoulders", "Upper Arms", "Forearms", "Back", "Chest", "Waist", "Hips", "Thighs", "Calves"]
SecondArray = [
SecondTable(SecondTitle: ["Neck1","Neck2","Neck3"]),
SecondTable(SecondTitle: ["Shoulders1","Shoulders2","Shoulders3"]),
SecondTable(SecondTitle: ["Upper Arms1","Upper Arms2","Upper Arms3"]),
SecondTable(SecondTitle: ["Forearms1","Forearms2","Forearms3"]),
SecondTable(SecondTitle: ["Back1","Back2","Back3"]),
SecondTable(SecondTitle: ["Chest1","Chest2","Chest3"]),
SecondTable(SecondTitle: ["Waist1","Waist2","Waist3"]),
SecondTable(SecondTitle: ["Hips1","Hips2","Hips3"]),
SecondTable(SecondTitle: ["Thighs1","Thighs2","Thighs3"]),
SecondTable(SecondTitle: ["Calves1","Calves2","Calves3"])]
ThirdArray = [
ThirdView(ThirdViewArray: ["NeckText1","NeckText2","NeckText3"], Pic: [#imageLiteral(resourceName: "giphy.gif"),#imageLiteral(resourceName: "giphy2.gif"),#imageLiteral(resourceName: "giphy3.gif")]),
ThirdView(ThirdViewArray: ["ShouldersText1","ShouldersText2","ShouldersText3"], Pic: [#imageLiteral(resourceName: "giphy3.gif"),#imageLiteral(resourceName: "giphy2.gif"),#imageLiteral(resourceName: "giphy.gif")]),
ThirdView(ThirdViewArray: ["Upper ArmsText1","Upper ArmsText2","Upper ArmsText3"], Pic: []),
ThirdView(ThirdViewArray: ["ForearmsText1","ForearmsText2","ForearmsText3"], Pic: []),
ThirdView(ThirdViewArray: ["BackText1","BackText2","BackText3"], Pic: []),
ThirdView(ThirdViewArray: ["ChestText1","ChestText2","ChestText3"], Pic: []),
ThirdView(ThirdViewArray: ["WaistText1","WaistText2","WaistText3"], Pic: []),
ThirdView(ThirdViewArray: ["HipsText1","HipsText2","HipsText3"], Pic: []),
ThirdView(ThirdViewArray: ["ThighsText1","ThighsText2","ThighsText3"], Pic: []),
ThirdView(ThirdViewArray: ["CalvesText1","CalvesText2","CalvesText3"], Pic: [])]
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return BodyPartsArray.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let Cell = self.tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as UITableViewCell
Cell.textLabel?.text = BodyPartsArray[indexPath.row]
return Cell
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let indexPath: NSIndexPath = self.tableView.indexPathForSelectedRow! as NSIndexPath
let DestViewController = segue.destination as! SecondTableViewController
var SecondTableArrayTwo: SecondTable
SecondTableArrayTwo = SecondArray[indexPath.row]
DestViewController.ExerciseListArray = SecondTableArrayTwo.SecondTitle
var ThirdAnswerArray: ThirdView
ThirdAnswerArray = ThirdArray[indexPath.row]
DestViewController.SecondAnswerArray = ThirdAnswerArray.ThirdViewArray
DestViewController.SecondAnswerArrayPic = ThirdAnswerArray.Pic
}ExercisesViewController contains:
Code:
var FirstString = String()
var ExerciseImage = UIImage()
override func viewDidLoad() {
TextView.text = FirstString
self.ImageView.image = UIImage.gif(name: "")
}I used this script to load Gifs:
Code:
import Foundation
import UIKit
import ImageIO
extension UIImageView {
public func loadGif(name: String) {
DispatchQueue.global().async {
let image = UIImage.gif(name: name)
DispatchQueue.main.async {
self.image = image
}
}
}
}
extension UIImage {
public class func gif(data: Data) -> UIImage? {
// Create source from data
guard let source = CGImageSourceCreateWithData(data as CFData, nil) else {
print("SwiftGif: Source for the image does not exist")
return nil
}
return UIImage.animatedImageWithSource(source)
}
public class func gif(url: String) -> UIImage? {
// Validate URL
guard let bundleURL = URL(string: url) else {
print("SwiftGif: This image named \"\(url)\" does not exist")
return nil
}
// Validate data
guard let imageData = try? Data(contentsOf: bundleURL) else {
print("SwiftGif: Cannot turn image named \"\(url)\" into NSData")
return nil
}
return gif(data: imageData)
}
public class func gif(name: String) -> UIImage? {
// Check for existance of gif
guard let bundleURL = Bundle.main
.url(forResource: name, withExtension: "gif") else {
print("SwiftGif: This image named \"\(name)\" does not exist")
return nil
}
// Validate data
guard let imageData = try? Data(contentsOf: bundleURL) else {
print("SwiftGif: Cannot turn image named \"\(name)\" into NSData")
return nil
}
return gif(data: imageData)
}
internal class func delayForImageAtIndex(_ index: Int, source: CGImageSource!) -> Double {
var delay = 0.1
// Get dictionaries
let cfProperties = CGImageSourceCopyPropertiesAtIndex(source, index, nil)
let gifPropertiesPointer = UnsafeMutablePointer<UnsafeRawPointer?>.allocate(capacity: 0)
if CFDictionaryGetValueIfPresent(cfProperties, Unmanaged.passUnretained(kCGImagePropertyGIFDictionary).toOpaque(), gifPropertiesPointer) == false {
return delay
}
let gifProperties:CFDictionary = unsafeBitCast(gifPropertiesPointer.pointee, to: CFDictionary.self)
// Get delay time
var delayObject: AnyObject = unsafeBitCast(
CFDictionaryGetValue(gifProperties,
Unmanaged.passUnretained(kCGImagePropertyGIFUnclampedDelayTime).toOpaque()),
to: AnyObject.self)
if delayObject.doubleValue == 0 {
delayObject = unsafeBitCast(CFDictionaryGetValue(gifProperties,
Unmanaged.passUnretained(kCGImagePropertyGIFDelayTime).toOpaque()), to: AnyObject.self)
}
delay = delayObject as? Double ?? 0
if delay < 0.1 {
delay = 0.1 // Make sure they're not too fast
}
return delay
}
internal class func gcdForPair(_ a: Int?, _ b: Int?) -> Int {
var a = a
var b = b
// Check if one of them is nil
if b == nil || a == nil {
if b != nil {
return b!
} else if a != nil {
return a!
} else {
return 0
}
}
// Swap for modulo
if a! < b! {
let c = a
a = b
b = c
}
// Get greatest common divisor
var rest: Int
while true {
rest = a! % b!
if rest == 0 {
return b! // Found it
} else {
a = b
b = rest
}
}
}
internal class func gcdForArray(_ array: Array<Int>) -> Int {
if array.isEmpty {
return 1
}
var gcd = array[0]
for val in array {
gcd = UIImage.gcdForPair(val, gcd)
}
return gcd
}
internal class func animatedImageWithSource(_ source: CGImageSource) -> UIImage? {
let count = CGImageSourceGetCount(source)
var images = [CGImage]()
var delays = [Int]()
// Fill arrays
for i in 0..<count {
// Add image
if let image = CGImageSourceCreateImageAtIndex(source, i, nil) {
images.append(image)
}
// At it's delay in cs
let delaySeconds = UIImage.delayForImageAtIndex(Int(i),
source: source)
delays.append(Int(delaySeconds * 1000.0)) // Seconds to ms
}
// Calculate full duration
let duration: Int = {
var sum = 0
for val: Int in delays {
sum += val
}
return sum
}()
// Get frames
let gcd = gcdForArray(delays)
var frames = [UIImage]()
var frame: UIImage
var frameCount: Int
for i in 0..<count {
frame = UIImage(cgImage: images[Int(i)])
frameCount = Int(delays[Int(i)] / gcd)
for _ in 0..<frameCount {
frames.append(frame)
}
}
// Heyhey
let animation = UIImage.animatedImage(with: frames,
duration: Double(duration) / 1000.0)
return animation
}And the problem is, although it loads working gif, it shows the same gif, even though I am entering different imageLiterals or different name of the images.
What am I missing?