String to CLLocation latitude and Longitude

Question

I have two strings representing latitude and longitude like: "-56.6462520", and i want to assign then to a CLLocation object to compare to my current location.I tried the following code but i get errors only:

CLLocation * LocationAtual = [[CLLocation alloc]init];
LocationAtual.coordinate.latitude = @"-56.6462520";
LocationAtual.coordinate.longitude = @"-36.6462520";

and then compare the object with my actual location latitude and longitude. Any suggestions?

Objective-C convention is camelCase for var names. – Adam Waite Aug 21 '13 at 21:37 — Adam Waite, Aug 21 '13 at 21:37

AmitP · Answer 1 · 2014-09-26T18:41:23.597

109

You cannot assign directly into coordinate - it is a readonly property of CLLocation.
Use the following instance method:

- (instancetype)initWithLatitude:(CLLocationDegrees)latitude
                       longitude:(CLLocationDegrees)longitude

example:

CLLocation *LocationAtual = [[CLLocation alloc] initWithLatitude:-56.6462520 longitude:-36.6462520];

edited Sep 26 '14 at 18:41

answered Feb 11 '13 at 18:15

AmitP

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That's true, you can't assign to CLLocation attributes. – Hola Soy Edu Feliz Navidad Feb 22 '13 at 05:57

score 12 · Accepted Answer · answered Oct 26 '11 at 19:22

12

I think you need to:

LocationAtual.coordinate.latitude = [@"-56.6462520" floatValue];
LocationAtual.coordinate.longitude = [@"-36.6462520" floatValue];

answered Oct 26 '11 at 19:22

Robot Woods

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I got the point, i think the conversion is correct, but im getting this error: "Lvaule required as left operand of assignment"... – Vinicius Albino Oct 26 '11 at 19:45
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http://stackoverflow.com/questions/5527878/lvalue-required-as-left-operand-of-assignment – Robot Woods Oct 26 '11 at 19:51
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I cannot delete an accepted answer, but agree AmitP's answer is correct. My answer was along the lines of "you can't use a string as a number" – Robot Woods Aug 22 '13 at 16:50
Expression is not assignable – Bhumesh Purohit Dec 20 '18 at 12:50

score 9 · Answer 3 · answered Feb 01 '16 at 19:26

9

Swift Answer for the lazy:

var LocationAtual: CLLocation = CLLocation(latitude: -56.6462520, longitude: -36.6462520)

answered Feb 01 '16 at 19:26

Paul Lehn

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score 1 · Answer 4 · answered Jan 10 '14 at 09:51

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CLLocation coordinate is actually a read only value

    @property (nonatomic, readonly) CLLocationCoordinate2D coordinate;

So the best way to assign dummy data to coordinates is AMITp way

answered Jan 10 '14 at 09:51

abc123

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score 1 · Answer 5 · answered Jan 13 '14 at 07:36

lattitude and longitude are double values so need to be assigned this way.

CLLocation *LocationAtual=[[CLLocation alloc] initWithLatitude:[[location objectForKey:@"latitude"] doubleValue] longitude:[[location objectForKey:@"longitude"] doubleValue]]

String to CLLocation latitude and Longitude

5 Answers5

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