我可以使用UIDocumentInteractionController在Instagram上成功共享图像,但InstagramCaption键不起作用.这是我的代码：
self.controller = UIDocumentInteractionController() // controller.delegate = self self.controller.URL = fileUri // HERE,the caption won't appear. self.controller.annotation = NSDictionary(objectsAndKeys: "my caption","InstagramCaption") self.controller.UTI = "com.instagram.exclusivegram" self.controller.presentOpenInMenuFromRect(CGRectZero,inView: self.view,animated: true)
我究竟做错了什么？
