Question

I am using mapkit and use thin code

    double      latitude1;
    double      longitude1;
@property (assign) double latitude1;
@property (assign) double longitude1;

latitude and longitude both in double type in database, But i recieved error when i write this line:(

CLLocationCoordinate2D theCoordinate;
        theCoordinate.latitude  = [ classObj.latitude1 doubleValue];
        theCoordinate.longitude = [ classObj.longitude1 doubleValue];

this error is occur
“invalid recieve type double”
i have convert in float but it also didnot work..

Answer 1

latitude1 property is already a plain double – you don’t need (and can’t use) doubleValue call with it. Just write:

theCoordinate.latitude  = classObj.latitude1;

Or even better

LLocationCoordinate2D theCoordinate = CLLocationCoordinate2DMake(classObj.latitude1, classObj.longitude1);