<key>CFBundleDocumentTypes</key>
    <array>
        <dict>
            <key>CFBundleTypeName</key>
            <string></string>
            <key>LSItemContentTypes</key>
            <array>
                <string>com.microsoft.powerpoint.ppt</string>
                <string>public.item</string>
                <string>com.microsoft.word.doc</string>
                <string>com.adobe.pdf</string>
                <string>com.microsoft.excel.xls</string>
                <string>public.image</string>
                <string>public.content</string>
                <string>public.composite-content</string>
                <string>public.archive</string>
                <string>public.audio</string>
                <string>public.movie</string>
                <string>public.text</string>
                <string>public.data</string>
            </array>
        </dict>
    </array>

/**
 打开文件调用的代理方发
 
 @param application 自己的app
 @param url 第三方应用调用时文件的沙盒地址
 @param sourceApplication 调用我们APP的第三方应用是谁
 @param annotation
 @return 返回值是YES
 */
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(nullable NSString *)sourceApplication annotation:(id)annotation
{
    if (self.window) {
        if (url) {
            NSString *fileNameStr = [url lastPathComponent];
            NSString *Doc = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/localFile"] stringByAppendingPathComponent:fileNameStr];
            NSData *data = [NSData dataWithContentsOfURL:url];
            [data writeToFile:Doc atomically:YES];
            NSLog(@"文件已存到本地文件夹内");
        }
    }
    return YES;
}