How do I get the current location with green pin and destination location with red pin?
When I work on some stuff I get only destination location with red pin, not at the current location.
My source code.
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <MapKit/MKAnnotation.h>
#import <CoreLocation/CoreLocation.h>
@interface AddressAnnotation : NSObject<MKAnnotation> {
CLLocationCoordinate2D coordinate;
NSString *mTitle;
NSString *mSubTitle;
// CLLocationManager *locationManager;
// CLLocation *currentLocation;
}
@end
@interface MapViewController : UIViewController <CLLocationManagerDelegate,MKMapViewDelegate> {
IBOutlet MKMapView *mapView;
AddressAnnotation *addAnnotation;
NSString *address;
CLLocationManager *locationManager;
CLLocation *currentLocation;
}
+(MapViewController *)sharedInstance;
-(void)start;
-(void)stop;
-(BOOL)locationKnown;
@property(nonatomic,retain)CLLocation *currentLocation;
@property(nonatomic,retain)NSString *address;
-(CLLocationCoordinate2D) addressLocation;
-(void)showAddress;
@end
#import "MapViewController.h"
@implementation AddressAnnotation
@synthesize coordinate;
//@synthesize currentLocation;
- (NSString *)subtitle{
//return @"Sub Title";
return @"Event";
}
- (NSString *)title{
//return @"Title";
return @"Allure-Exclusive";
}
-(id)initWithCoordinate:(CLLocationCoordinate2D) c{
coordinate=c;
//NSLog(@"%f,%f",c.latitude,c.longitude);
return self;
}
@end
@implementation MapViewController
@synthesize address;
@synthesize currentLocation;
static MapViewController *sharedInstance;
+(MapViewController *)sharedInstance{
@synchronized (self)
{
if (!sharedInstance)
[[MapViewController alloc]init];
}
return sharedInstance;
}
+(id)alloc{
@synchronized(self){
NSAssert(sharedInstance==nil,"Attempted to allocate a second instance of a singleton LocationController.");
sharedInstance = [super alloc];
}
return sharedInstance;
}
-(id)init{
if(self==[super init]){
self.currentLocation=[[CLLocation alloc]init];
locationManager=[[CLLocationManager alloc]init];
locationManager.delegate=self;
[self start];
}
return self;
}
-(void)start{
NSLog(@"Start");
mapView.showsUserLocation=YES;
[locationManager startUpdatingLocation];
}
-(void)stop{
mapView.showsUserLocation=NO;
[locationManager stopUpdatingLocation];
}
-(BOOL)locationKnown{
if (round(currentLocation.speed)==-1)
return NO;
else return YES;
}
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
if (abs([newLocation.timestamp timeIntervalSinceDate:[NSDate date]])<120){
self.currentLocation=newLocation;
}
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
UIAlertView *alert;
alert=[[UIAlertView alloc]initWithTitle:@"Error" message:[error description] delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
[alert release];
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
self.title=@"Map-View";
// [self addressLocation];
[self showAddress];
NSLog(@"address is %@",address);
}
-(void)showAddress{
MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.5;
span.longitudeDelta=0.5;
CLLocationCoordinate2D location = [self addressLocation];
region.span=span;
region.center=location;
if(addAnnotation != nil) {
[mapView removeAnnotation:addAnnotation];
[addAnnotation release];
addAnnotation = nil;
}
addAnnotation = [[AddressAnnotation alloc] initWithCoordinate:location];
[mapView addAnnotation:addAnnotation];
[mapView setRegion:region animated:TRUE];
[mapView regionThatFits:region];
}
-(CLLocationCoordinate2D) addressLocation {
NSString *urlString = [NSString stringWithFormat:@"http://maps.google.com/maps/geo?q=%@&output=csv",
[address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSString *locationString = [NSString stringWithContentsOfURL:[NSURL URLWithString:urlString]];
NSLog(@"locationString %@",locationString);
NSArray *listItems = [locationString componentsSeparatedByString:@","];
double latitude = 0.0;
double longitude = 0.0;
if([listItems count] >= 4 && [[listItems objectAtIndex:0] isEqualToString:@"200"]) {
latitude = [[listItems objectAtIndex:2] doubleValue];
longitude = [[listItems objectAtIndex:3] doubleValue];
NSLog(@"listItems %@",[listItems objectAtIndex:2]);
}
else {
//Show error
}
CLLocationCoordinate2D location;
location.latitude = latitude;
location.longitude = longitude;
return location;
}
- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation{
if (annotation==mapView.userLocation) {
MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"currentloc"];
annView.pinColor = MKPinAnnotationColorGreen;
annView.animatesDrop=YES;
annView.canShowCallout = YES;
annView.calloutOffset = CGPointMake(-5, 5);
return annView;
//
}
else {
MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"currentloc"];
annView.pinColor = MKPinAnnotationColorRed;
annView.animatesDrop=YES;
annView.canShowCallout = YES;
annView.calloutOffset = CGPointMake(-5, 5);
return annView;
}
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Overriden to allow any orientation.
return YES;
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// [self stop];
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[address release];
[super dealloc];
}
@end
- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation{
if (annotation==mapView.userLocation)
{
mapView.userLocation.title=@"Current Location";
[mapView setRegion:MKCoordinateRegionMakeWithDistance(mapView.userLocation.coordinate, 1000, 1000)animated:YES];
return nil;
}
else {
MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"currentloc"];
annView.pinColor = MKPinAnnotationColorRed;
annView.animatesDrop=YES;
annView.canShowCallout = YES;
annView.calloutOffset = CGPointMake(-5, 5);
return annView;
}
}
When I changed the method. it’s pointing blue and blinking,but it was pointing at different location, which is at infinite Loop mariani Ave location.
It was running this in a simulator.
You’ll want to set showsUserLocation.
mapView.showsUserLocation = YES;