file:///private/var/mobile/Library/Mobile%20Documents/com_appleCloudDocs/apple.pdf

當我做分享功能的時候， 使用iPhone “文件” APP 選擇iCloud中一個文件 選擇轉發(fā)分享至本APP
系統調用一下方法：

  //MARK: 收到分享內容
- (BOOL)application:(UIApplication *)application openURL:(nonnull NSURL *)url options:(nonnull NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options
{

    NSLog(@"url = %@",url);
    NSString *urlStr = url.absoluteString;
    if ([urlStr containsString:@"file://"]) {
        //收到分享的文件 當是iCloud路徑下的文件的時候 發(fā)現為nil 
        NSData *data = [NSData dataWithContentsOfURL:url];
        
    }
    return YES;
}

這時候我們發(fā)現data 為nil
當訪問iCloud文件的時候 屬于訪問安全資源 需要請求復制 并訪問 代碼如下：

  [url startAccessingSecurityScopedResource];//fileURL ---> Which FileURL you want to copy
                NSFileCoordinator *fileCoordinator = [[NSFileCoordinator alloc] initWithFilePresenter:nil];
                NSFileAccessIntent *readingIntent = [NSFileAccessIntent readingIntentWithURL:url options:NSFileCoordinatorReadingWithoutChanges];
                [fileCoordinator coordinateAccessWithIntents:@[readingIntent] queue:[NSOperationQueue mainQueue] byAccessor:^(NSError *error) {
                    NSData *filePathData;
                    if (!error) {
                        // Always get URL from access intent. It might have changed.
                        NSURL *safeURL = readingIntent.URL;
                        filePathData = [NSData dataWithContentsOfURL:safeURL];
                        // here your code to do what you want with this
                        NSLog(@"獲取到數據:%@",filePathData);
        
                      }
                    [url stopAccessingSecurityScopedResource];
                }];

這時候filePathData 已經有值了