Convert url to image

Question

still learning programming and have a question.

im trying to download image from url and put it in cells, ive successfully done it with text but not with images.

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
    return posts.count
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
    let cell = tableView.dequeueReusableCell(withIdentifier:"searchCell", for: indexPath)
    as! CustomTableViewCell
    cell.titleField?.text = posts[indexPath.row].caption
    cell.descriptionField?.text = posts[indexPath.row].description
    cell.tagsField?.text = posts[indexPath.row].tags
    let photoUrl = posts[indexPath.row].photoUrl
    cell.SearchImage.image = ...

//url is stored in photoUrl

    return cell
}

}

score 0 · Answer 1 · answered Mar 20 '18 at 15:54

I recommend you to use this third party library.

Kingfisher handles everything for you.

A lightweight, pure-Swift library for downloading and caching images from the web.

If you don't know how to install it, have a look at Cocoapods, it's pretty straightforward.

Anyway, here is the only line of code needed to set an image from your URL with Kingfisher :

cell.SearchImage.kf.setImage(with: photoUrl)

By the way, you should follow the Swift convention described here in order to make your code easier to read and "universal".

Have a look : Naming Convention

score 0 · Accepted Answer · answered Mar 20 '18 at 16:10

0

Use a pod to make it easy

use SDWebImage

then use it like this :

import SDWebImage

cell.SearchImage.sd_setImage(with: photoUrl, placeholderImage: nil)

answered Mar 20 '18 at 16:10

Laurine Baillet

76
9

Thank you, having problem with install, i followed the guide and all looked right but when i import webimage it says it doesnt exist.. even thought its in the podfile below. – Alex. E Mar 20 '18 at 18:13

score 0 · Answer 3 · answered Mar 20 '18 at 17:55

0

On swift3 You can use Alamofire (https://cocoapods.org/) for that.

Step 1:

Integrate using pods.

pod 'Alamofire', '~> 4.7'

pod 'AlamofireImage', '~> 3.3'

Step 2:

import AlamofireImage

import Alamofire

Step 3:

Alamofire.request("https:// YOUR URL").responseImage { response in

if let image = response.result.value {
    print("image downloaded: \(image)")
self.myImageview.image = image
}
}

Or you can try this -

let url = URL(string: "https:// YOUR URL")

let task = URLSession.shared.dataTask(with: url!) { data, response, error in
    guard let data = data, error == nil else { return }

    DispatchQueue.main.async() 
    {    
        self.imageView.image = UIImage(data: data)
    }
}

task.resume()

answered Mar 20 '18 at 17:55

Rashed

2,349
11
26

hate to seem so stupid, but ive legit tried all options from all answers and still doesnt work, the pods install but cant be imported, ive done pod installs before and they worked fine.. – Alex. E Mar 20 '18 at 19:00
Just write import Alamafire under the import UIKit . Then press cmd+ shift+B. same for the AlamofireImage. ok. No error will be shown after that. try it – Rashed Mar 21 '18 at 04:08
Didnt work :/ error: Cannot load underlying module for 'Alamofire' – Alex. E Mar 21 '18 at 17:13
Imports are case sensitive. are u using AlamFIre Or Alamofire ? – Rashed Mar 21 '18 at 17:15
apparently product -> clean worked tho – Alex. E Mar 21 '18 at 17:16
Give me the full error – Rashed Mar 21 '18 at 17:17
try - "cmd + k" and " shift + alt + cmd + k" then "cmd + shift + B" . let me know what happened. – Rashed Mar 21 '18 at 17:33

Convert url to image

3 Answers3