CODEWITHSUNDEEP
iosswiftnsfilemanagernsdocumentdirectory
Abhishek K
Abhishek K

Reputation: 15

How can i delete files from FileManager?

See Image as referenceI am working on a project, in which i need to show a UICollectionview, which includes files from filemanager, in this collectionview i am displaying images as well as folders. And there is also a button which deletes the selected cells. So how can i delete selected folder/images from document directory?

I am creating folder with this function.

    func createDir() {
        let manager = FileManager.default
        guard let url = manager.urls(for: .documentDirectory, in: .userDomainMask).first else {
            return
        }
        print("url path is ==>>",url.path)
        
        let folderName = url.appendingPathComponent(folderNameTextField.text!)
        do {
            try manager.createDirectory(at: folderName, withIntermediateDirectories: true, attributes: [:])
            print("Saved")
            listFilesFromDocumentsFolder()
//            getAllDirectoriesList()
        }
        catch {
            print(error)
        }
    }

`And saving images with this function

        func saveImageToDocumentDirectory(image: UIImage ) {
        let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
//        
        let fileName = "Doc-" + dateFormatter.string(from: Date())
        let fileURL = documentsDirectory.appendingPathComponent(fileName
        )
        if let data = image.jpegData(compressionQuality: 1.0),!FileManager.default.fileExists(atPath: fileURL.path){
            do {
                try data.write(to: fileURL)
                print("file saved")
            } catch {
                print("error saving file:", error)
            }
        }
    }

I am using this function to delete, it works but abnormally,

        for file in folderImageArray {
                    try! FileManager.default.removeItem(at: file)
                }

And This function making a crash.

        for file in folderNameArray {
                    try! FileManager.default.removeItem(atPath: file)
                }

Upvotes: 1

Views: 1065

Answers (1)

Abdul Waheed
Abdul Waheed

Reputation: 894

You should not force unwrap try block, Use do try at-least it will give you the reason why it's not working. Also adding a little delay will work fine

for file in folderImageArray {
    do {
        DispatchQueue.main.asyncAfter(deadline: .now() + 0.01) {
          try FileManager.default.removeItem(at: file)
        }
    } catch {
      print("File Deletion Failed: \(error.localizedDescription)")
    }  

}

Upvotes: 1

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