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我正在尝试从 Files App 中选择文件，UIDocumentPickerViewController但我在选择器中看不到Select用于多项选择的按钮。为什么会这样？我做错什么了吗？任何人都可以帮忙吗？

代码片段：

NSArray *arrContents = @[@"public.content",@"public.item",@"public.composite-content",@"public.data",@"public.database",@"public.calendar-event",@"public.message",@"public.presentation",@"public.contact",@"public.archive",@"public.disk-image",@"public.text",@"public.plain-text",@"public.utf8-plain-text",@"public.utf16-external-plain-​text",@"public.utf16-plain-text",@"com.apple.traditional-mac-​plain-text",@"public.rtf"];

UIDocumentPickerViewController *dvc = [[UIDocumentPickerViewController 
alloc]initWithDocumentTypes:arrContents inMode:UIDocumentPickerModeImport];
dvc.delegate = self;
[self presentViewController:dvc animated:true completion:nil];
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1 回答 1

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dvc.allowsMultipleSelection = true;初始化后设置UIDocumentPickerViewController。

于 2017-11-27T13:30:57.747 回答