【订阅】DMG购买成功窗口null判断

PDF Office/PDF Master/AppDelegate.swift

@@ -116,7 +116,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
                 #if VERSION_DMG
                 // 执行相应的操作
                 if url.scheme == "subscriptiondmgschemes" {
-                    if !KMLightMemberManager.manager.isLogin() {
+                    if !KMLightMemberManager.manager.isLogin() && NSApp.mainWindow != nil {
                         KMLoginWindowController.show(window: NSApp.mainWindow!)
                     } else {
                         KMPurchaseManager.manager.restorePurchases()