iOS openurl用于多个文件

Question

我这样写是为了接受其他应用程序导出的文件。

-(BOOL)application:(UIApplication *)application
           openURL:(NSURL *)url
 sourceApplication:(NSString *)sourceApplication
        annotation:(id)annotation {
    if (url != nil && [url isFileURL])
    {            
        NSData *myData = [NSData dataWithContentsOfURL:url];
        NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString *docPath = [paths objectAtIndex:0];
        NSString *filePath = [docPath stringByAppendingPathComponent:[self.arrayGetSplit objectAtIndex:counting] ];

        [myData writeToFile:filePath atomically:YES];           
    }
    return YES;
}

但是我只能保存1个文件。如果用户导出多个文件，如何支持多个文件？