Tại sao ứng dụng iOS của tôi không hiển thị trong hộp thoại "Mở trong" của các ứng dụng khác?

Question

Tôi đang cố triển khai quy trình đăng ký cho phép ứng dụng iOS của tôi hiển thị trong danh sách "Mở trong" các ứng dụng khác (như được mô tả trong Apple's Document Interaction Programming Topics). Tôi muốn ứng dụng của mình có thể xử lý âm thanh từ bất kỳ ứng dụng nào sẽ cung cấp định dạng tệp âm thanh chuẩn (MP3, AIFF, WAV, v.v.).

Như tôi đã hiểu, tất cả những gì tôi cần làm là thêm khóa CFBundleDocumentTypes, với các phân mục có liên quan, vào Info.plist của ứng dụng của tôi. Đây là những gì tôi đưa vào (thông qua Xcode 4 của các loại tài liệu biên tập):

<key>CFBundleDocumentTypes</key> 
<array> 
    <dict> 
     <key>CFBundleTypeIconFiles</key> 
     <array> 
      <string>scrubbulator-icon</string> 
     </array> 
     <key>CFBundleTypeName</key> 
     <string>Audio</string> 
     <key>LSHandlerRank</key> 
     <string>Alternative</string> 
     <key>LSItemContentTypes</key> 
     <array> 
     <string>public.mp3</string> 
     </array> 
    </dict> 
</array> 

Việc bổ sung các mã này không được hiển thị ứng dụng của tôi trong các ứng dụng Mở trong "menu (Tôi đang thử nghiệm trên iPhone, sử dụng một MP3 trong Dropbox là nguồn tệp. Các ứng dụng AudioMemos và Evernote đều được hiển thị cho một tệp MP3 trong Dropbox, vì vậy tôi biết định dạng được hỗ trợ). Có điều gì đó hiển nhiên tôi đang làm sai, hay có cái gì khác tôi cần phải thực hiện?

(Lưu ý: Tôi chưa thiết lập mục UTExportedTypeDeclarations trong Info.plist của mình, vì tôi hiểu những điều này chỉ cần thiết cho UTI tùy chỉnh. Vì tôi đang sử dụng Hệ thống UTI, tôi tin rằng nó không cần thiết, nhưng hãy sửa lại cho tôi nếu tôi sai)

EDIT

tôi đã thêm sau xuất khẩu Loại nhiễm trùng đường niệu, không có thành công.

<key>UTExportedTypeDeclarations</key> 
<array> 
    <dict> 
     <key>UTTypeConformsTo</key> 
     <array> 
     <string>kUTTypeMP3</string> 
     </array> 
     <key>UTTypeDescription</key> 
     <string>Audio file</string> 
     <key>UTTypeIdentifier</key> 
     <string>kUTTypeMP3</string> 
     <key>UTTypeTagSpecification</key> 
     <dict> 
     <key>public.filename-extension</key> 
     <array> 
      <string>mp3</string> 
     </array> 
     </dict> 
    </dict> 
</array> 

Answer 1

Đối với tất cả định dạng tập tin tiêu chuẩn:

<key>CFBundleDocumentTypes</key> 
<array> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Unknown File</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.calendar-event</string> 
      <string>public.database</string> 
      <string>public.executable</string> 
      <string>public.data</string> 
      <string>public.content </string> 
      <string>public.item</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Video</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.video</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Image</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.image</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Web Archive</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.apple.webarchive</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>iWork Keynote</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.apple.keynote.key</string> 
      <string>com.apple.iwork.keynote.key</string> 
      <string>com.apple.iwork.keynote.kth</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>iWork Numbers</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.apple.numbers.numbers</string> 
      <string>com.apple.iwork.numbers.numbers</string> 
      <string>com.apple.iwork.numbers.template</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>iWork Pages</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.apple.page.pages</string> 
      <string>com.apple.iwork.pages.pages</string> 
      <string>com.apple.iwork.pages.template</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>OpenDocument Spreadsheet</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>org.oasis.opendocument.spreadsheet</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>OpenDocument Presentation</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>org.oasis.opendocument.presentation</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>OpenDocument Text</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>org.oasis.opendocument.text</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Folder</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.folder</string> 
     </array> 
    </dict> 

---

<dict> 
     <key>CFBundleTypeName</key> 
     <string>Audio</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.audio</string> 
      <string>public.mp3</string> 
      <string>public.mpeg-4-audio</string> 
      <string>com.apple.protected-​mpeg-4-audio</string> 
      <string>public.aifc-audio</string> 
      <string>com.apple.coreaudio-​format</string> 
      <string>public.aiff-audio</string> 
     </array> 
    </dict> 

---

<dict> 
     <key>CFBundleTypeName</key> 
     <string>Movie</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.movie</string> 
      <string>public.3gpp2</string> 
      <string>public.3gpp</string> 
      <string>public.mpeg</string> 
      <string>com.apple.quicktime-movie</string> 
      <string>public.mpeg-4</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>GIF image</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.compuserve.gif</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>PNG image</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.png</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>TIFF image</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.tiff</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>JPEG image</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.jpeg</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>XML</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.xml</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>HTML</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.html</string> 
      <string>public.xhtml</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Rich Text</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.rtf</string> 
      <string>com.apple.rtfd</string> 
      <string>com.apple.flat-rtfd</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Text</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.text</string> 
      <string>public.plain-text</string> 
      <string>public.utf8-plain-text</string> 
      <string>public.utf16-external-plain-​text</string> 
      <string>public.utf16-plain-text</string> 
      <string>com.apple.traditional-mac-​plain-text</string> 
      <string>public.source-code</string> 
      <string>public.c-source</string> 
      <string>public.objective-c-source</string> 
      <string>public.c-plus-plus-source</string> 
      <string>public.objective-c-plus-​plus-source</string> 
      <string>public.c-header</string> 
      <string>public.c-plus-plus-header</string> 
      <string>com.sun.java-source</string> 
      <string>public.script</string> 
      <string>public.shell-script</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeExtensions</key> 
     <array> 
      <string>zip</string> 
      <string>zipx</string> 
     </array> 
     <key>CFBundleTypeName</key> 
     <string>Zip archive</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.zip-archive</string> 
      <string>public.archive</string> 
      <string>com.pkware.zip-archive</string> 
      <string>com.pkware.zipx-archive</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeExtensions</key> 
     <array> 
      <string>rar</string> 
      <string>RAR</string> 
     </array> 
     <key>CFBundleTypeName</key> 
     <string>Rar archive</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.rarlab.rar-archive</string> 
      <string>public.archive</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeExtensions</key> 
     <array> 
      <string>7z</string> 
      <string>7Z</string> 
     </array> 
     <key>CFBundleTypeName</key> 
     <string>7z archive</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>org.7-zip.7-zip-archive</string> 
      <string>public.archive</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Waveform audio</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.microsoft.waveform-​audio</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Windows icon image</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.microsoft.ico</string> 
      <string>com.apple.icns</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Windows bitmap image</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.microsoft.bmp</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Microsoft PowerPoint</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.microsoft.powerpoint.​ppt</string> 
      <string>org.openxmlformats.presentationml.presentation</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Microsoft Excel</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>org.openxmlformats.spreadsheetml.sheet</string> 
      <string>com.microsoft.excel.xls</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>Microsoft Word</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.microsoft.word.doc</string> 
      <string>com.microsoft.word.wordml</string> 
      <string>org.openxmlformats.wordprocessingml.document</string> 
     </array> 
    </dict> 
    <dict> 
     <key>CFBundleTypeName</key> 
     <string>PDF</string> 
     <key>LSHandlerRank</key> 
     <string>Alternate</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>com.adobe.pdf</string> 
     </array> 
    </dict> 
</array> 

Answer 2

Bạn nên sử dụng Alternate thay vì Alternative

<key>LSHandlerRank</key> 
<string>Alternate</string> 

Answer 3

<key>CFBundleDocumentTypes</key> 
<array> 
    <dict> 
     <key>CFBundleTypeExtensions</key> 
     <array> 
      <string>"*"</string> 
     </array> 
     <key>CFBundleTypeName</key> 
     <string>Unknown</string> 
     <key>LSItemContentTypes</key> 
     <array> 
      <string>public.data</string> 
     </array> 
    </dict> 
</array>