在我的项目中,我有一个包含多个字典的数组,每个字典都有一些键值。我想将“链接”键的所有值转换为NSMutableArray
。当前包含字典的数组的形式为:
( { YoutubeVideo = { description = "Cervical Spine Medial Branch Nerve Neurolysis neurosurgical animations"; link = "https://player.vimeo.com/video/26186155"; title = "Cervical Spine Medial Branch Nerve Neurolysis neurosurgical animations"; }; }, { YoutubeVideo = { description = "What is endoscopic brain surgery"; link = "https://player.vimeo.com/video/16144037"; title = "What is endoscopic brain surgery"; }; }, { YoutubeVideo = { description = "Cervical Spine Medial Branch Nerve Block Injection pain management"; link = "https://player.vimeo.com/video/26186167"; title = "Cervical Spine Medial Branch Nerve Block Injection pain management"; }; }, { YoutubeVideo = { description = "Seguiremos - Hospital Sant Joan de D\U00e9u y Macaco"; link = "https://player.vimeo.com/video/54275902"; title = "Seguiremos - Hospital Sant Joan de D\U00e9u y Macaco"; }; }, { YoutubeVideo = { description = "Basic Shoulder Arthroscopy in Orthopaedics"; link = "https://www.youtube.com/embed/ywBVWIzGxtw"; title = "Basic Shoulder Arthroscopy in Orthopaedics"; }; }
我想将链接的所有值放入单个数组中。目前,我使用的代码给出以下输出:
-(void)videolisting { NSString *post = @"api_key=bf45c093e542f057c123ae7d6"; NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[postData length]]; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; [request setURL:[NSURL URLWithString:@"http://hChe/api/video"]]; [request setHTTPMethod:@"POST"]; [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [request setHTTPBody:postData]; NSURLResponse *response; NSError *err; NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err]; NSString *str=[[NSString alloc]initWithData:responseData encoding:NSUTF8StringEncoding]; //NSLog(@"str : %@",str); NSDictionary *dict6 = [self cleanJsonToObject:responseData]; //NSLog(@"str : %@",dict6); vidnamearray = [dict6 objectForKey:@"video"]; NSLog(@" Required Dir: %@",vidnamearray); }
Vidhyanand.. 5
尝试以下解决方案
NSMutableArray *subArray=[[NSMutableArray alloc]init]; for(NSDictionary *dict in vidnamearray) { NSDictionary *subDict=[dict valueForKey:@"YoutubeVideo"]; [subArray addObject:[subDict valueForKey:@"link"]]; }
subArray将获取链接键中的所有值。
希望它可以帮助您.....!
尝试以下解决方案
NSMutableArray *subArray=[[NSMutableArray alloc]init]; for(NSDictionary *dict in vidnamearray) { NSDictionary *subDict=[dict valueForKey:@"YoutubeVideo"]; [subArray addObject:[subDict valueForKey:@"link"]]; }
subArray将获取链接键中的所有值。
希望它可以帮助您.....!