如何防止我的 macOS 应用程序同时运行多个实例？
[英]How do I prevent my macOS app from having multiple instances running at the same time?
问题描述
I have an app for which I allow the user to enable 'open at login' via a preference using a launcher app (see https://en.atjason.com/Cocoa/SwiftCocoa_Auto%20Launch%20at%20Login.html ).
我有一个应用程序，我允许用户通过使用启动器应用程序的首选项启用“登录时打开”（请参阅https://en.atjason.com/Cocoa/SwiftCocoa_Auto%20Launch%20at%20Login.html ）。 However, when I check the box to enable it, the launcher app opens another instance of my app.但是，当我选中该框以启用它时，启动器应用程序会打开我的应用程序的另一个实例。
1 个解决方案
解决方案1
4 2017-10-05 03:30:50
I found a bundle key that can be used for this: LSMultipleInstancesProhibited .我找到了一个可用于此LSMultipleInstancesProhibited的包键： LSMultipleInstancesProhibited 。 When set to YES , another instance cannot be opened.设置为YES ，无法打开另一个实例。 Potential downside is that it also prohibits another logged-in user from opening the app at the same time.潜在的缺点是它还禁止另一个登录用户同时打开应用程序。
Further details available here: https://developer.apple.com/library/content/documentation/General/Reference/InfoPlistKeyReference/Articles/LaunchServicesKeys.html此处提供更多详细信息： https : //developer.apple.com/library/content/documentation/General/Reference/InfoPlistKeyReference/Articles/LaunchServicesKeys.html
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