使用 UIDocumentBrowserViewController 将文档导入应用程序的文档浏览器

Question

我已经在基于文档的简单 iOS 应用程序中声明了自定义导出 UTI 类型。我现在正在尝试提供将相同类型的文件从 Mail 导入应用程序的功能。

当长按消息中的文档图标时，我可以选择 "copy to MyApp"，然后调用 AppDelegate.m:

中的方法

- (BOOL)application:(UIApplication *)app openURL:(NSURL *)inputURL options:(NSDictionary<UIApplicationOpenURLOptionsKey, id> *)options {

DocumentBrowserViewController *documentBrowserViewController = (DocumentBrowserViewController *)self.window.rootViewController;
[documentBrowserViewController revealDocumentAtURL:inputURL importIfNeeded:YES completion:^(NSURL * _Nullable revealedDocumentURL, NSError * _Nullable error) {
    if (error) {
        NSLog(@"Failed to reveal the document at URL %@ with error: '%@'", inputURL, error);
        return;
    }
    NSLog(@"Imported document to %@",[revealedDocumentURL absoluteString]);
    [documentBrowserViewController presentDocumentAtURL:revealedDocumentURL];
}];
return YES;
}

然而文档被呈现，但未被导入（revealedDocumentURL 与inputURL 相同，并且未调用委托方法importDocumentAtURL）。也许我不应该使用 revealDocumentAtURL 方法？我无法使用 importDocumentAtURL: nextToDocumentAtURL: mode: completionHandler: 方法，因为我无法为 nextToDocumentAtURL 参数指定文档。有没有办法将文档导入特定目录？也许我错过了一些很明显的东西？此外，这是我的 info.plist 文件，以防有用。

<dict>
    <key>CFBundleDevelopmentRegion</key>
    <string>$(DEVELOPMENT_LANGUAGE)</string>
    <key>CFBundleDocumentTypes</key>
    <array>
        <dict>
            <key>CFBundleTypeIconFiles</key>
            <array/>
            <key>CFBundleTypeName</key>
            <string>MyApp File</string>
            <key>CFBundleTypeRole</key>
            <string>Editor</string>
            <key>LSHandlerRank</key>
            <string>Owner</string>
            <key>LSItemContentTypes</key>
            <array>
                <string>com.myCompany.MyApp</string>
            </array>
            <key>LSSupportsOpeningDocumentsInPlace</key>
            <false/>
        </dict>
    </array>
    <key>CFBundleExecutable</key>
    <string>$(EXECUTABLE_NAME)</string>
    <key>CFBundleIdentifier</key>
    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>$(PRODUCT_NAME)</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
    <key>CFBundleShortVersionString</key>
    <string>1.0</string>
    <key>CFBundleVersion</key>
    <string>1</string>
    <key>LSRequiresIPhoneOS</key>
    <true/>
    <key>LSSupportsOpeningDocumentsInPlace</key>
    <false/>
    <key>UILaunchStoryboardName</key>
    <string>LaunchScreen</string>
    <key>UIMainStoryboardFile</key>
    <string>Main</string>
    <key>UIRequiredDeviceCapabilities</key>
    <array>
        <string>armv7</string>
    </array>
    <key>UISupportedInterfaceOrientations</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>UISupportedInterfaceOrientations~ipad</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationPortraitUpsideDown</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>UISupportsDocumentBrowser</key>
    <true/>
    <key>UTExportedTypeDeclarations</key>
    <array>
        <dict>
            <key>UITypeTagSpecification</key>
            <dict>
                <key>public.filename-extension</key>
                <array>
                    <string>myext</string>
                </array>
            </dict>
            <key>UTTypeConformsTo</key>
            <array>
                <string>public.data</string>
                <string>public.content</string>
            </array>
            <key>UTTypeDescription</key>
            <string>MyApp File</string>
            <key>UTTypeIdentifier</key>
            <string>com.myCompany.MyApp</string>
        </dict>
    </array>
</dict>
</plist>

Answer 1

这似乎是 iOS 11.2 中的一个问题。将 iOS 升级到 11.3 并将 Xcode 升级到 9.3 解决了这些问题。

使用 UIDocumentBrowserViewController 将文档导入应用程序的文档浏览器

Importing document to app's Document Browser using DocumentBrowserViewController

objective-c

ios11

uti

uidocumentbrowservc