Home - 历史文件缩图模式崩溃修复

PDF Office/PDF Master/Class/Home/ViewController/KMHomeHistoryFileViewController.swift

@@ -577,6 +577,9 @@ class KMHomeHistoryFileViewController: NSViewController, NSCollectionViewDelegat
     func collectionView(_ collectionView: NSCollectionView, itemForRepresentedObjectAt indexPath: IndexPath) -> NSCollectionViewItem {
         if collectionView.isEqual(to: historyFileCollectionView) {
             let item: KMHistoryFileCollectionViewItem = collectionView.makeItem(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMHistoryFileCollectionViewItem"), for: indexPath) as! KMHistoryFileCollectionViewItem
+            if (indexPath.count > files.count) {
+                return item
+            }
             let i: Int = indexPath.item
             let url: URL = files[i] as! URL