How to import objective c header file in swift project

Question

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?

Possible duplicate of [How to call Objective C code from Swift](http://stackoverflow.com/questions/24002369/how-to-call-objective-c-code-from-swift) — Mtoklitz113, Jul 18 '16 at 06:30
see this once it helps you http://stackoverflow.com/questions/32303778/how-to-install-sdwebimage — Anbu.Karthik, Jul 18 '16 at 06:34
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 ; — virat, Jul 18 '16 at 06:53
ok i have edited my code have a look so how should use sdimage now to set my image view to show images — virat, Jul 18 '16 at 07:26

Alessandro Ornano · Answer 1 · 2016-07-18T07:39:49.107

7

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

                            }
                    })

edited Jul 18 '16 at 07:39

answered Jul 18 '16 at 06:30

Alessandro Ornano

34,887
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it is giving error in my bringing header file as "UIImageView+WebCatche.h" file not found – virat Jul 18 '16 at 06:47
done with all your suggested steps but now its giving me error in bridging header file as : "UIImageView+WebCatche.h" file not found – virat Jul 18 '16 at 06:48
Have you drag and drop the full proj? – Alessandro Ornano Jul 18 '16 at 06:52
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 ; – virat Jul 18 '16 at 06:52
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 ; – virat Jul 18 '16 at 06:54
You must also make a clean of the project, try to remove derivedData, then re-build all – Alessandro Ornano Jul 18 '16 at 06:56
not working deleting derived data also please check the image i have added – virat Jul 18 '16 at 07:02
ok i have edited my code have a look so how should use sdimage now to set my image view to show images – virat Jul 18 '16 at 07:26
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 – Alessandro Ornano Jul 18 '16 at 07:31

Fujia · Accepted Answer · 2016-07-18T06:59:06.873

7

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.

edited Jul 18 '16 at 06:59

answered Jul 18 '16 at 06:31

Fujia

1,232
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imported header file like #import UIImageView+WebCatche.h in the bridging header also – virat Jul 18 '16 at 06:32
Then you should be able to use the code in swift without importing anything in swift file. – Fujia Jul 18 '16 at 06:36
it is giving error in my bringing header file as "UIImageView+WebCatche.h" file not found – virat Jul 18 '16 at 06:41
You need to check the project header search path. And adding the 'umbrella' header would be better than adding headers individually. – Fujia Jul 18 '16 at 06:50
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 ; – virat Jul 18 '16 at 06:53
sorry, i forget to append semi-colon after the import statement. See my updated answer. – Fujia Jul 18 '16 at 06:58
2

You don't need to import anything in your swift file because you have imported them in the bridging header. – Fujia Jul 18 '16 at 07:04
ok i have edited my code have a look so how should use sdimage now to set my image view to show images @Fijia – virat Jul 18 '16 at 07:13
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 – virat Jul 18 '16 at 08:05

How to import objective c header file in swift project

2 Answers2