improved code

Signed-off-by: marinofaggiana <marino.faggiana@nextcloud.com>

Widget/Nextcloud/NextcloudData.swift

@@ -185,7 +185,7 @@ func getDataEntry(isPreview: Bool, displaySize: CGSize, completion: @escaping (_
                 guard let url = URL(string: urlString) else { continue }
                 // Build Recent Data
                 var imageRecent = UIImage()
-                if let image = NCUtilityGUI.shared.createFilePreviewImage(ocId: file.ocId, etag: file.etag, fileNameView: file.fileName, classFile: file.classFile, status: 0, createPreviewMedia: false) {
+                if let image = NCUtilityGUI().createFilePreviewImage(ocId: file.ocId, etag: file.etag, fileNameView: file.fileName, classFile: file.classFile, status: 0, createPreviewMedia: false) {
                     imageRecent = image
                 } else if !file.iconName.isEmpty {
                     imageRecent = UIImage(named: file.iconName)!

iOSClient/Main/Collection Common/NCCollectionViewCommon.swift

@@ -1360,7 +1360,7 @@ extension NCCollectionViewCommon: UICollectionViewDataSource {
         // Thumbnail
         if !metadata.directory {
             if metadata.name == NCGlobal.shared.appName {
-                if let image = NCUtilityGUI.shared.createFilePreviewImage(ocId: metadata.ocId, etag: metadata.etag, fileNameView: metadata.fileNameView, classFile: metadata.classFile, status: metadata.status, createPreviewMedia: !metadata.hasPreview) {
+                    if let image = NCUtilityGUI().createFilePreviewImage(ocId: metadata.ocId, etag: metadata.etag, fileNameView: metadata.fileNameView, classFile: metadata.classFile, status: metadata.status, createPreviewMedia: !metadata.hasPreview) {
                     (cell as! NCCellProtocol).filePreviewImageView?.image = image
                 } else {
                     NCOperationQueue.shared.downloadThumbnail(metadata: metadata, placeholder: true, cell: cell, view: collectionView)

iOSClient/Transfers/NCTransfers.swift

@@ -184,7 +184,7 @@ class NCTransfers: NCCollectionViewCommon, NCTransferCellDelegate {
         cell.labelPath.text = pathText
         cell.setButtonMore(named: NCGlobal.shared.buttonMoreStop, image: NCBrandColor.cacheImages.buttonStop)
         cell.progressView.progress = 0.0
-        if let image = NCUtilityGUI.shared.createFilePreviewImage(ocId: metadata.ocId, etag: metadata.etag, fileNameView: metadata.fileNameView, classFile: metadata.classFile, status: metadata.status, createPreviewMedia: true) {
+        if let image = NCUtilityGUI().createFilePreviewImage(ocId: metadata.ocId, etag: metadata.etag, fileNameView: metadata.fileNameView, classFile: metadata.classFile, status: metadata.status, createPreviewMedia: true) {
             cell.imageItem.image = image
         } else if !metadata.iconName.isEmpty {
             cell.imageItem.image = UIImage(named: metadata.iconName)

iOSClient/Utility/NCUtilityGUI.swift

@@ -24,11 +24,7 @@
 import UIKit
 import NextcloudKit
 
-class NCUtilityGUI: NSObject {
-    @objc static let shared: NCUtilityGUI = {
-        let instance = NCUtilityGUI()
-        return instance
-    }()
+class NCUtilityGUI{
 
     func createFilePreviewImage(ocId: String, etag: String, fileNameView: String, classFile: String, status: Int, createPreviewMedia: Bool) -> UIImage? {