北京时间6月6号凌晨苹果WWDC2023开发者大会上，苹果集团所研发的苹果第1款头显Vision Pro正式发布，苹果CEO库克在发布会中介绍这款新的头显产品的时候就介绍到，有了Vision Pro你将不会再被显示器限制。苹果所推出的
The UISearchDisplayController is very handy and implementing search is pretty straightforward. However, I bump into problem when, in my app, I want to display search result with empty search string b
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