小编Kan*_*vas的帖子

每当我从我的应用程序中使用 UIDocumentPickerviewcontroller 从 iCloud 中选择文件时，它都会在iPhone模拟器上显示此警报。

NSArray *types = @[(NSString*)kUTTypeArchive];
UIDocumentPickerViewController *docPicker = [[UIDocumentPickerViewController alloc] initWithDocumentTypes:types inMode:UIDocumentPickerModeImport];
docPicker.delegate = self;
docPicker.modalPresentationStyle = UIModalPresentationPopover;
[self presentViewController:docPicker animated:YES completion:nil];