Find Direction in iphone like North or etc
direction, iphone, objective-c
Solution
try this code below:
first add framework in your project CoreLocation.Framework after adding initialize CLLocationManager object and import CLLocationManager header file.
Yourviewcontroller.h
#import <CoreLocation/CoreLocation.h>
@interface Yourviewcontroller :UIViewController <CLLocationManagerDelegate>
{
CLLocationManager *locationManager;
}
Yourviewcontroller.m
locationManager=[[CLLocationManager alloc] init];
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
locationManager.delegate = self;
//Start the compass updates.
[locationManager startUpdatingHeading];
add function for get current direction
-(void)locationManager:(CLLocationManager *)manager didUpdateHeading:(CLHeading *)newHeading
{
float mHeading = newHeading.magneticHeading;
if ((mHeading >= 339) || (mHeading <= 22)) {
//[direction setText:@"N"];
}else if ((mHeading > 23) && (mHeading <= 68)) {
//[direction setText:@"NE"];
}else if ((mHeading > 69) && (mHeading <= 113)) {
//[direction setText:@"E"];
}else if ((mHeading > 114) && (mHeading <= 158)) {
//[direction setText:@"SE"];
}else if ((mHeading > 159) && (mHeading <= 203)) {
//[direction setText:@"S"];
}else if ((mHeading > 204) && (mHeading <= 248)) {
//[direction setText:@"SW"];
}else if ((mHeading > 249) && (mHeading <= 293)) {
// [direction setText:@"W"];
}else if ((mHeading > 294) && (mHeading <= 338)) {
// [direction setText:@"NW"];
}
}
Note :compass is work only real iphone device,not work in iphone simulator..!
Problem
I have one trouble in my app i want to know the direction to the Latitude and Longtitude from the current Lat & Long ``` -(void)showDirection { CGFloat latitude = Lat; if (latitude < 0) { latitude = -latitude; strDirection = @"S"; } else { strDirection = @"N"; } // Longitude CGFloat longitude = Long; if (longitude < 0) { longitude = -longitude; strDirection = @"W"; } else { strDirection = @"E"; } NSLog(@"direc %@",strDirection); } ```