小编sha*_*sha的帖子

.h和xmpp的.m文件,我正在尝试聊天应用程序. 但是,当我构建项目时,我得到以下错误,我试图解决过去24小时的问题,但是没有成功获得解决方案,我甚至用谷歌搜索但没有得到解决方案.以下是我得到的错误,

Undefined symbols for architecture i386:
  "_dns_free_resource_record", referenced from:
      -[XMPPSRVResolver processRecord:length:] in XMPPSRVResolver.o
  "_dns_parse_resource_record", referenced from:
      -[XMPPSRVResolver processRecord:length:] in XMPPSRVResolver.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

如何在目标C中将字符串转换为数组.即,我有一个字符串,

NSString *str = @"Hi,How r u";

这应该转换为数组*NSMutableArray arr,其中

arr [0] ="Hi"
arr [1] =","
arr [2] ="How"
arr [3] ="r"
arr [4] ="u"

任何人都可以帮助解决这个问题.

我使用以下代码获取当前位置,我已添加了corelocation框架

- (void)viewDidLoad {
    [super viewDidLoad];

    locationManager = [[CLLocationManager alloc] init];
    locationManager.delegate = self;
    locationManager.distanceFilter = kCLDistanceFilterNone; // whenever we move
    locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters; // 100 m
    [locationManager startUpdatingLocation];

}

- (void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation
           fromLocation:(CLLocation *)oldLocation
{
    int degrees = newLocation.coordinate.latitude;
    double decimal = fabs(newLocation.coordinate.latitude - degrees);
    int minutes = decimal * 60;
    double seconds = decimal * 3600 - minutes * 60;
    NSString *lat = [NSString stringWithFormat:@"%d° %d' %1.4f\"", 
                     degrees, minutes, seconds];
    NSLog(@" Current Latitude : %@",lat);
    //latLabel.text …

问题是，当图像大小超过 60 kb 时，它不会将图像发布到 Web 服务，但如果图像大小小于 60 kb，则将其发布到 Web 服务。

如何减小目标 c 中图像的大小。以下是我正在使用的代码，

-(IBAction)sendEmail:(id)sender
{
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];

    NSLog(@"TABLEDIC%@",appDelegate.tableDic);
    //Parsing
    recordResults = FALSE;

    NSString *soapMessage = [NSString stringWithFormat:@"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
                             "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n"
                             "<soap:Body>\n"
                             "<CreateTextMail xmlns=\"http://tempuri.org/\">\n"
                             "<listid>%@</listid>\n"
                             "<fromid>%@</fromid>\n"
                             "<subject>%@</subject>\n"
                             "<replyto>%@</replyto>\n"
                             "<loginid>%@</loginid>\n"
                             "<fromname>%@</fromname>\n"
                             "<forward>%@</forward>\n"
                             "<subscribe>%@</subscribe>\n"
                             "<mailpriority>%@</mailpriority>\n"
                             "<recievermailtext>%@</recievermailtext>\n"
                             "<mailbody>%@</mailbody>\n"
                             "<emailname>%@</emailname>\n"
                             "<signature>%@</signature>\n"
                             "<listname>%@</listname>\n"
                             "<emailtype>%@</emailtype>\n"
                             "<imagecontent>%@</imagecontent>\n"
                             "<imagename>%@</imagename>"
                             "</CreateTextMail>\n"
                             "</soap:Body>\n"
                             "</soap:Envelope>\n",[appDelegate.tableDic valueForKey:@"tableID"],[appDelegate.tableDic valueForKey:@"fromname"],[appDelegate.tableDic valueForKey:@"subject"],[appDelegate.tableDic valueForKey:@"replyto"],[appDelegate.tableDic valueForKey:@"loginid"],[appDelegate.tableDic valueForKey:@"fromname"],forward.text,subscribe.text,[appDelegate.tableDic valueForKey:@"mailpriority"],receivermailtext.text,body.text,[appDelegate.tableDic valueForKey:@"emailName"],[appDelegate.tableDic valueForKey:@"signature"],[appDelegate.tableDic valueForKey:@"tableName"],emailType,strEncoded,imageName.text
                             ];

    NSLog(@"SOPA%@",soapMessage);

    NSURL *url = [NSURL URLWithString:@"http://www.xxx.net/xxx/xxx.asmx"];
    NSMutableURLRequest *theRequest …

如何用目标C中的数组中的UnderScore(_)替换Space.以下是我用来从文件中读取数组数据的代码,

NSString *g = [[NSString alloc]initWithCString:data];
    NSMutableString *tempGetAll = [[NSMutableString alloc]init];
    if(k>0){
        NSArray *lines = [g componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@""]];
        for (NSString* line in lines)
        {
          //[arrGetAll addObject: line];
          NSLog(@"%@",line) ;
          //NSLog(@"---------");

        }

    }
    k++;

以下是我得到的输出,

嗨如何ru 20.000

但我需要以下列方式输出,

hi_how_r_u:20.000

所以如何用Underscore替换空间.