Passing Data from one view controller to another (Image) - swift

Question

Error:
Thread 1: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
Destination Controller
var getImage = UIImage()
var name = String()
var gender = String()
var house = String()
var ancestry = String()
override func viewDidLoad() {
super.viewDidLoad()
imageView.image = (charData.image)as! UIImage
nameLabel.text! = name
houseLabel.text! = house
// Do any additional setup after loading the view.
}
Source Controller
var charactersData = [Character]()
override func viewDidLoad() {
super.viewDidLoad()
loadData()
}
func loadData()
{
DispatchQueue.main.async {
Alamofire.request("http://hp-api.herokuapp.com/api/characters").responseJSON(completionHandler: {
(response) in
switch response.result
{
case.success(let value):
let json = JSON(value)
print(json)
json.array?.forEach({
(character) in
let character = Character(name: character["name"].stringValue, house:character["house"].stringValue,image:character["image"].stringValue, gender: character["gender"].stringValue, ancestry: character["ancestry"].stringValue)
self.charactersData.append(character)
})
self.tableView.reloadData()
case.failure(let error):
print(error.localizedDescription)
}
})
}
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return charactersData.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CharTableViewCell
cell.nameLabel.text = "Name: " + charactersData[indexPath.row].name
cell.houseLabel.text = "House: " + charactersData[indexPath.row].house
if let imageURL = URL(string: self.charactersData[indexPath.row].image) {
DispatchQueue.global().async {
let data = try? Data(contentsOf: imageURL)
if let data = data {
let image = UIImage(data: data)
DispatchQueue.main.async {
cell.charImageView.image = image
}
}
}
}
return cell
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let hpc = storyboard?.instantiateViewController(withIdentifier: "CharDetails") as? CharDetailsViewController
hpc?.getImage = (charactersData[indexPath.row].image) as! UIImage
hpc?.name = charactersData[indexPath.row].name
hpc?.house = charactersData[indexPath.row].house
self.navigationController?.pushViewController(hpc!, animated: true)
}
Im trying to pass an image to another controller but it seems im getting that error, could someone kindly help me. All the other data like name and house is passing properly other than the image. Kindly please let me know where to make changes

Answer 1

This might work:
override func viewDidLoad() {
super.viewDidLoad()
imageView.image = getimage // change this in view did load method
}

Answer 2

You are doing wrong(this is not UIImage, this is URL string so you can use this url string to download the image):
hpc?.getImage = (charactersData[indexPath.row].image) as! UIImage
Please replace UIImage to String because this is not UIImage, This is String URL to download the image
So For this You have to change getImage variable UIImage to String and pass this String to this variable
var getImage = String()
hpc?.getImage = (charactersData[indexPath.row].image) as! String
After that again download this image from URL in another controller but this way is not good so you to follow below way:
Or
You have another option like when you download the image than save it Character Struct and pass it when didselect
Process:
Add a new variable like image in Character Struct/Model
Assign downloaded image when API call in the Struct/Model
And pass this image to another controller when didSelect