[ADD] Error log view

AltStore/View Extensions/UIView Representables/FilePreviewView.swift

@@ -0,0 +1,48 @@
+//
+//  FilePreviewView.swift
+//  SideStore
+//
+//  Created by Fabian Thies on 03.02.23.
+//  Copyright © 2023 SideStore. All rights reserved.
+//
+
+import SwiftUI
+import UIKit
+import QuickLook
+
+struct FilePreviewView: UIViewControllerRepresentable {
+    let urls: [URL]
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator(urls: self.urls)
+    }
+
+    func makeUIViewController(context: Context) -> some UIViewController {
+        let previewController = QLPreviewController()
+        previewController.dataSource = context.coordinator
+        return UINavigationController(rootViewController: previewController)
+    }
+
+    func updateUIViewController(_ uiViewController: UIViewControllerType, context: Context) {
+        context.coordinator.urls = self.urls
+    }
+}
+
+extension FilePreviewView {
+
+    class Coordinator: QLPreviewControllerDataSource {
+        var urls: [URL]
+
+        init(urls: [URL]) {
+            self.urls = urls
+        }
+
+        func numberOfPreviewItems(in controller: QLPreviewController) -> Int {
+            urls.count
+        }
+
+        func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
+            urls[index] as QLPreviewItem
+        }
+    }
+}