How to import objective c header file in swift project

Question

enter image description here

I am trying to use SDWebImage in a Swift project. I dragged and dropped the SDWebImage library folder into my Swift project and created a bridging header by name listingApp-Bridging-Header.h

Then I imported the header file into my Swift file; like so imported

    import UIImageView+WebCache.h  

  func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{

    let cell : TableViewCell = self.tableView.dequeueReusableCellWithIdentifier("Cell") as! TableViewCell


    let strTitle : NSString = arrDict[indexPath.row].valueForKey("clip_name") as! NSString

      cell.clipName.text = strTitle as String


    cell.videoImage sd_setImageWithURL=NSURL URLWithString,[NSString stringWithFormat:@"%@%@",K_Server_imageurl,[record valueForKey:@"clip_image_path"]];



        return cell

}

It's giving me an error saying add ; before + How would I import the file above into my Swift project correctly?

Leyden

Do you have use_frameworks! uncommented in your podfile? – Telium

Possible duplicate of How to call Objective C code from Swift – Invert

i am not using pod file – Leyden

can you show the error – Cordy

see this once it helps you https://mcmap.net/q/1635160/-how-to-install-sdwebimage – Cordy

@Leyden check my answer – Circularize

see the image i have added – Leyden

now it is giving me error in viewController.swift file that : at this line import UIImageView+WebCache.h like this it is giving me error saying add ; before + sign that consecutive statements must be separated by ; – Leyden

ok i have edited my code have a look so how should use sdimage now to set my image view to show images – Leyden

Answer 1

You need to quote the header file name when importing it in the bridging header. Like this:

#import "UIImageView+WebCache.h";

This is exactly the same syntax as importing header files in objc.

Thedrick

imported header file like #import UIImageView+WebCatche.h in the bridging header also – Leyden

Then you should be able to use the code in swift without importing anything in swift file. – Thedrick

it is giving error in my bringing header file as "UIImageView+WebCatche.h" file not found – Leyden

You need to check the project header search path. And adding the 'umbrella' header would be better than adding headers individually. – Thedrick

now it is giving me error in viewController.swift file that : at this line import UIImageView+WebCache.h like this it is giving me error saying add ; before + sign that consecutive statements must be separated by ; – Leyden

sorry, i forget to append semi-colon after the import statement. See my updated answer. – Thedrick

You don't need to import anything in your swift file because you have imported them in the bridging header. – Thedrick

ok i have edited my code have a look so how should use sdimage now to set my image view to show images @Fijia – Leyden

thanks your comment : You don't need to import anything in your swift file because you have imported them in the bridging header. – worked for me – Leyden

Answer 2

It's not enough, you must add this bridge header filename also in your Build Settings - Swift Compiler Code Generation like in this picture:

Don't forget also this (required by SDWebImage):

About the next step:

imageDownloader.downloadImageWithURL(
                        NSURL(string: urlString!),
                        options: SDWebImageDownloaderOptions.UseNSURLCache,
                        progress: nil,
                        completed: { (image, data, error, bool) -> Void in
                            if image != nil {
                                self.bannerImageView.image = image

                            }
                    })

Glidebomb

it is giving error in my bringing header file as "UIImageView+WebCatche.h" file not found – Leyden

done with all your suggested steps but now its giving me error in bridging header file as : "UIImageView+WebCatche.h" file not found – Leyden

Have you drag and drop the full proj? – Glidebomb

now it is giving me error in viewController.swift file that : at this line import UIImageView+WebCache.h like this it is giving me error saying add ; before + sign that consecutive statements must be separated by ; – Leyden

now it is giving me error in viewController.swift file that : at this line import UIImageView+WebCache.h like this it is giving me error saying add ; before + sign that consecutive statements must be separated by ; – Leyden

You must also make a clean of the project, try to remove derivedData, then re-build all – Glidebomb

not working deleting derived data also please check the image i have added – Leyden

ok i have edited my code have a look so how should use sdimage now to set my image view to show images – Leyden

No please, stop it. You cannot change your question on the fly whenever you want, please open another question and flag this as answered (choose the answer you want): people have just answer to the main question title, if you change your question content this thread become completely incomprehensible – Glidebomb