1

AppleParty/AppleParty/Shared/UI/UIExtension.swift

@@ -15,7 +15,29 @@ extension NSAlert {
     static func show(_ content: String, title: String = "提示") {
         let alert = NSAlert()
         alert.messageText = title
-        alert.informativeText = content
+        if content.count > 300 || content.contains("\n") {
+            let scrollView = NSScrollView(frame: NSRect(x: 0, y: 0, width: 560, height: 260))
+            scrollView.hasVerticalScroller = true
+            scrollView.hasHorizontalScroller = false
+            scrollView.borderType = .bezelBorder
+
+            let textView = NSTextView(frame: scrollView.bounds)
+            textView.autoresizingMask = [.width]
+            textView.isEditable = false
+            textView.isSelectable = true
+            textView.drawsBackground = false
+            textView.textContainerInset = NSSize(width: 8, height: 8)
+            textView.textContainer?.widthTracksTextView = true
+            textView.textContainer?.containerSize = NSSize(width: scrollView.bounds.width, height: CGFloat.greatestFiniteMagnitude)
+            textView.string = content
+            textView.font = NSFont.systemFont(ofSize: 13)
+
+            scrollView.documentView = textView
+            alert.informativeText = "内容较长，请在下方滚动查看。"
+            alert.accessoryView = scrollView
+        } else {
+            alert.informativeText = content
+        }
         alert.runModal()
     }
 }