Converting two double values to String and then making a string using the new strings

Question

I am trying to convert two values to string and then make a new string containing the ones i made earlier so my service can accept them.

NSString *string1 = [ NSString stringWithFormat:@"%f", locationController.dblLatitude];
NSString *string2 = [ NSString stringWithFormat:@"%f", locationController.dblLongitude];



body = [[NSString stringWithFormat:@"geoX#%@#geoY#%@", string1, string2] dataUsingEncoding:NSUTF8StringEncoding];

This is the code i am using atm. The problem is that both string1 and string2 appear to be ok but the string named body appears to not working.. :< Any help ?

Can you give a sample of the output e.g. what values you have in string1, string2 and body? — Tomas McGuinness, Oct 09 '12 at 09:10
I have coordinates that i get from an updatelocation method. e.g 37.785834. I get two of these that i want to join them in a string of this format geoX#string1#geoY#string2 so my rest service can accept them. — Dimitris Koumouras, Oct 09 '12 at 09:13

score 1 · Accepted Answer · edited Oct 09 '12 at 09:21

1

body is not an NSString instance here, but NSData (because you're using `dataUsingEncoding:". If you want to see concatenation of stings in system log you should write something like that:

NSString* bodyString = [NSString stringWithFormat:@"geoX#%@#geoY#%@", string1, string2];
NSData* bodyData = [bodyString dataUsingEncoding:NSUTF8StringEncoding];

and then you can NSLog(@"Body: %@", bodyString); to see it's contents and then use bodyData for making http request.

edited Oct 09 '12 at 09:21

DrummerB

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answered Oct 09 '12 at 09:13

dieworld

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Really thanks all. Idd body was NSData and not NSString although i had it in front of my eyes i was really confused. This is working great now thanks! – Dimitris Koumouras Oct 09 '12 at 09:21

score 1 · Answer 2 · answered Oct 09 '12 at 09:13

1

body is not an NSString; it is an NSData because of your call to dataUsingEncoding.

answered Oct 09 '12 at 09:13

neilvillareal

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score 1 · Answer 3 · answered Oct 09 '12 at 09:14

I believe this is happening because you are just logging the raw data. Try creating a string from the data and then logging it like this:

body = [[NSString stringWithFormat:@"geoX#%@#geoY#%@", string1, string2] dataUsingEncoding:NSUTF8StringEncoding];
NSString *string = [[NSString alloc] initWithData:body encoding:NSUTF8StringEncoding];
NSLog(@"%@",string);

Converting two double values to String and then making a string using the new strings

3 Answers3