How to load Google Map - Specific area map - specified address by user in UItextField?
Ok. I Got the solution by r&d.
See the code following.
-(IBAction)showAddress // after adding the Address into textField - button pressed{
[addressField resignFirstResponder];
MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.05;
span.longitudeDelta=0.05;
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 setRegion:region animated:TRUE];
[mapView regionThatFits:region];
[mapView addAnnotation:addAnnotation];
}
-(CLLocationCoordinate2D) addressLocation {
// NSString *urlString = [[NSString stringWithFormat:#"http://maps.google.com/maps/geo?q=%#&output=csv",[addressField.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSString *urlString=[NSString stringWithFormat:#"http://maps.google.com/maps/geo?q=%#&output=csv",[addressField.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSString *locationString = [NSString stringWithContentsOfURL:[NSURL URLWithString:urlString]];
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];
}
else
{
NSLog(#"Error");
}
CLLocationCoordinate2D location;
location.latitude=latitude;
location.longitude=longitude;
return location;
}
Related
I want to load map on MKMapView.
Basically what i want to do is,
I want to load Particular Venue in my MapView.
My Database contains lot of Venues, according to requirement, i am fetching Venue and i want to load that Venue in my mapView.
for eg: I got this as Venue: #"100 Oxford Street, London, W1D 1LL, 020 7636 0933" from Database, then i want to load this location in my mapView
Thanks in advance.
EDIT:
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
NSString *venue= #"100 Oxford Street, London, W1D 1LL, 020 7636 0933";
[geocoder geocodeAddressString:venue completionHandler:^(NSArray *placemarks, NSError *error)
{
if ([placemarks count] > 0)
{
CLPlacemark *placemark = [placemarks objectAtIndex:0];
CLLocation *loc = placemark.location;
CLLocationCoordinate2D _venue = loc.coordinate;
NSLog(#"_venue:=%f",loc.coordinate);
MKPointAnnotation *venueAnnotation = [[MKPointAnnotation alloc]init];
[venueAnnotation setCoordinate:_venue];
[venueAnnotation setTitle:#"Venue"];
[MapVw addAnnotation:venueAnnotation];
}
}
];
- (IBAction)BtnClick:(id)sender {
NSLog(#"Map ");
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
[geocoder geocodeAddressString:#"100 Oxford Street, London, W1D 1LL, 020 7636 0933"
completionHandler:^(NSArray* placemarks, NSError* error)
{
if (placemarks && placemarks.count > 0)
{
CLPlacemark *topResult = [placemarks objectAtIndex:0];
MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:topResult];
[self.MapView addAnnotation:placemark];
CLLocationCoordinate2D _venue = placemark.coordinate;
[self.MapView setCenterCoordinate:_venue];
MKCoordinateRegion region = self.MapView.region;
region.span.longitudeDelta = 1.0;
region.span.latitudeDelta = 1.0;
[self.MapView setRegion:region animated:YES];
}
}
];
}
Steps:
1. Import CoreLocation.framework and MapKit.framework.
2. Use CoreLocation class Geocoder's method :
geoCodeAddressString:completionHandler:
NSString *venue= #"100 Oxford Street, London, W1D 1LL, 020 7636 0933";
[_geoCoder geocodeAddressString:venue completionHandler:^(NSArray *placemarks, NSError *error)
{
if ([placemarks count] > 0)
{
CLPlacemark *placemark = [placemarks objectAtIndex:0];
CLLocation *loc = placemark.location;
CLLocationCoordinate2D _venue = loc.coordinate;
}
});
]
[self performSelector:#selector(createVenueAnnotation) withObject:nil afterDelay:5];
UIActivityIndicatorView *activity = [[UIActivityIndicatorView alloc]init];
[_mapView addSubview:activity];
[activity startAnimating];
Step 3. If you want to place a MKPointAnnotation on the venue point.
- (void)createVenueAnnotation{
[activity stopAnimating];
[activity removeFromSuperview];
MKPointAnnotation *venueAnnotation = [[MKPointAnnotation alloc]init];
[venueAnnotation setCoordinate:_venue];
[venueAnnotation setTitle:#"Venue"];
[_mapView addAnnotation:venueAnnotation];
}
Step 4: Center your map around the venue.
// you need to call this function
- (void)centerMapAroundVenue
{
MKMapRect rect = MKMapRectNull;
MKMapPoint venuePoint = MKMapPointForCoordinate(_venue);
rect = MKMapRectUnion(rect, MKMapRectMake(venuePoint .x, venuePoint .y, 0, 0));
MKCoordinateRegion region = MKCoordinateRegionForMapRect(rect);
[_mapView setRegion:region animated:YES];
}
Here is simple scenario :
Get the Co-ordinates of the Address using GeoCoder
Using the Co-ordinatation ,Add the Annotation to the MapView.
Do something Like this to get the CLlocationCoordinate :
- (CLLocationCoordinate2D) geoCodeUsingAddress:(NSString *)address
{
double latitude = 0, longitude = 0;
NSString *esc_addr = [address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *req = [NSString stringWithFormat:#"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%#", esc_addr];
NSString *result = [NSString stringWithContentsOfURL:[NSURL URLWithString:req] encoding:NSUTF8StringEncoding error:NULL];
if (result) {
NSScanner *scanner = [NSScanner scannerWithString:result];
if ([scanner scanUpToString:#"\"lat\" :" intoString:nil] && [scanner scanString:#"\"lat\" :" intoString:nil]) {
[scanner scanDouble:&latitude];
if ([scanner scanUpToString:#"\"lng\" :" intoString:nil] && [scanner scanString:#"\"lng\" :" intoString:nil]) {
[scanner scanDouble:&longitude];
}
}
}
CLLocationCoordinate2D center;
center.latitude = latitude;
center.longitude = longitude;
return center;
}
Using the Center just add the annotation to the MapView.
[self.mapView addAnnotation:<annotationName>];
Plz go through this link For more info.
Hope this helps.
I have "googled" this question a few times today with no luck. I would like to know if it is possible to create an annotation in Mapview from an address rather than using the lat/Long method. My current code is below.
//1. Create a coordinate for use with the annotation
CLLocationCoordinate2D Sharon;
Sharon.latitude = 38.952223;
Sharon.longitude = -77.193646;
Annotation *myAnnotation = [Annotation alloc];
myAnnotation.coordinate = Sharon;
myAnnotation.title = #"Sharon Lodge #327";
myAnnotation.subtitle = #"McLean, VA";
Try like this,
NSString *location = "some address, state, and zip";
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
[geocoder geocodeAddressString:location
completionHandler:^(NSArray* placemarks, NSError* error){
if (placemarks && placemarks.count > 0) {
CLPlacemark *topResult = [placemarks objectAtIndex:0];
MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:topResult];
MKCoordinateRegion region = self.mapView.region;
region.center = placemark.region.center;
region.span.longitudeDelta /= 8.0;
region.span.latitudeDelta /= 8.0;
[self.mapView setRegion:region animated:YES];
[self.mapView addAnnotation:placemark];
}
];
for annotation title and subtitle,
CLPlacemark *topResult = [placemarks objectAtIndex:0];
// Create an MLPlacemark
MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:topResult];
// Create an editable PointAnnotation, using placemark's coordinates, and set your own title/subtitle
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
point.coordinate = placemark.coordinate;
point.title = #"Sample Location";
point.subtitle = #"Sample Subtitle";
// Set your region using placemark (not point)
MKCoordinateRegion region = self.mapView.region;
region.center = placemark.region.center;
region.span.longitudeDelta /= 8.0;
region.span.latitudeDelta /= 8.0;
// Add point (not placemark) to the mapView
[self.mapView setRegion:region animated:YES];
[self.mapView addAnnotation:point];
// Select the PointAnnotation programatically
[self.mapView selectAnnotation:point animated:NO];
You can get lat long from an address using google api or CLGeocoder
google api
Link 1 Link 2
CLGeocoder
-(id)getAnnotationAryFromAddress
{
CLGeocoder *geocoder2 = [[CLGeocoder alloc] init];
NSString *addressString = "string contain address, city, state and zip";
[geocoder2 geocodeAddressString:addressString
completionHandler:^(NSArray *placemarks, NSError *error) {
if (error) {
//NSLog(#"Geocode failed with error: %#", error);
return;
}
if (placemarks && placemarks.count > 0)
{
CLPlacemark *placemark = [placemarks objectAtIndex:0];
CLLocation *location = placemark.location;
RegionAnnotation *annotation = [[RegionAnnotation alloc] init];
CLLocationCoordinate2D theCoordinate1;
theCoordinate1 = location.coordinate;
annotation.title = #"Title";
annotation.subtitle = #"SubTitle";
annotation.tag = i;
annotation.coordinate = theCoordinate1;
[self.mapView addAnnotation:annotation];
}
}];
}
return self;
}
I need to display multiple annonation views in MKMapKit..I use this code..
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib
[mapView setMapType:MKMapTypeStandard];
[mapView setZoomEnabled:YES];
[mapView setScrollEnabled:YES];
DisplayMap *ann = [[DisplayMap alloc] init];
//NSLog(#"xapp.arrplacename:%d",[xapp.arrplacename count]);
for (i=0;i<=[arrplacename count]-1;i++)
{
MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
//arrplacename contains the address of the locations
NSString *straddress=[arrplacename objectAtIndex:i];
NSString *strregion=#"";
NSString *strs=[straddress stringByAppendingString: strregion];
// lbladdress.text=strs;
// NSString add=strs;
// here you define the url setting your address
NSString *urlString = [NSString stringWithFormat:#"http://maps.google.com/maps/geo?q=%#&output=csv",[strs stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding]];
NSLog(#"US: %#",urlString);
// then you get the response string here
NSString *locationString = [[[NSString alloc] initWithContentsOfURL:[NSURL URLWithString:urlString]] autorelease];
NSLog(#"loaction strings%#",locationString);
// now you can create an array splitting the response values using the ","
//[listItems addObject:locationString];
listItems = [locationString componentsSeparatedByString:#","];
NSLog(#"A: %#",[xapp.listItems objectAtIndex:2]);
// define latitude and longitude variables
double latitude = 0.0;
double longitude = 0.0;
NSString *strlatitude;
NSString *strlongitude;
strlatitude=[xapp.listItems objectAtIndex:2];
strlongitude=[xapp.listItems objectAtIndex:3];
float stringFloat = [strlatitude floatValue];
float string1Float = [strlongitude floatValue];
// if your array has inside the sctructure you aspect (4 values as described in my previous post) and the first value is like "200" (OK result)
if([xapp.listItems count] >= 4 && [[xapp.listItems objectAtIndex:0] isEqualToString:#"200"])
{
// not sure if you need the accurancy parameter
//accurancy = [[listItems objectAtIndex:1] intValue];
// here you can get your values
// latitude = [[listItems objectAtIndex:2] doubleValue];
//longitude = [[listItems objectAtIndex:3] doubleValue];
latitude = stringFloat;
longitude = string1Float;
}
else {
NSLog(#"Error on map");
}
region.center.latitude = latitude;
region.center.longitude = longitude;
NSLog(#"latitude:%g",region.center.latitude);
// region.center.latitude = 42.7157850;
// region.center.longitude = 27.56470180;
region.span.longitudeDelta = 0.01f;
region.span.latitudeDelta = 0.01f;
[mapView setRegion:region animated:YES];
[mapView setDelegate:self];
ann.title = [xapp.arrplacename objectAtIndex:i];
ann.subtitle = [xapp.arrplacename objectAtIndex:i];
ann.coordinate = region.center;
[mapView addAnnotation:ann];
}
}
I do have some problems in this code....all the coordnates are not added to the listitems array..I can see only the objects that are added atlast....
This is the delegates I add for displaying the annonation in my map..
- (CLLocationCoordinate2D) geoCodeUsingAddress:(NSString *)address{
NSLog(#"ssssss");
double latitude = 0, longitude = 0;
NSString *esc_addr = [address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *req = [NSString stringWithFormat:#"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%#", esc_addr];
NSString *result = [NSString stringWithContentsOfURL:[NSURL URLWithString:req] encoding:NSUTF8StringEncoding error:NULL];
if (result) {
NSScanner *scanner = [NSScanner scannerWithString:result];
if ([scanner scanUpToString:#"\"lat\":" intoString:nil] && [scanner scanString:#"\"lat\":" intoString:nil]) {
[scanner scanDouble:&latitude];
if ([scanner scanUpToString:#"\"lng\":" intoString:nil] && [scanner scanString:#"\"lng\":" intoString:nil]) {
[scanner scanDouble:&longitude];
}
}
}
CLLocationCoordinate2D center;
center.latitude = latitude;
center.longitude = longitude;
return center;
}
-(MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:
(id <MKAnnotation>)annotation {
MKPinAnnotationView *pinView = nil;
NSLog(#"pinnview before release %d",[pinView retainCount]);
if (pinView !=nil) {
pinView =nil;
[pinView release];
}
NSLog(#"pinnview after release %d",[pinView retainCount]);
// if it's the user location, just return nil.
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
if(annotation != mapView.userLocation)
{
static NSString *defaultPinID = #"your-pin";
pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if ( counting < [mapView.annotations count])
{
counting++;
pinView = [[[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
/* for(DisplayMap* a in mapView.annotations)
{
if (annotation == a){
pinView.image =
[UIImage imageWithContentsOfFile:
[[NSBundle mainBundle] pathForResource:a.image ofType:nil]];
}
}*/
pinView.centerOffset= CGPointMake(0,-10);
pinView.canShowCallout = YES;
}
}
// return pinView;
}
- (void)mapView:(MKMapView *)mapView didAddAnnotationViews:(NSArray *)views
{
NSLog(#"enter");
[mapView selectAnnotation:[[mapView annotations] lastObject] animated:YES];
}
Delegates are called only once eventhough I'm using [mapView addAnnotation:ann]; inside the for loop...And it shows pin only for the last item tatz added in the array...How can I overcome this????
You are allocating and initializing 'ann' only once before the for loop starts, and you are altering the same and adding it again and again into Map. Thats why you are getting only one annotation.
Move this line inside for loop and try,
DisplayMap *ann = [[DisplayMap alloc] init];
I have a little problem and i dont know why is it happening.
My map view is woking fine in the simulator but on the real device I only see the pin on the gray area and the "google" logo. It's like the images cant be loaded, it look like when you zoom in and you wait for the view to draw around the square.
Here is my code, I would appreciate any help
#import "Maps.h"
#import "RootViewController.h"
#implementation AddressAnnotation
#synthesize coordinate;
-(NSString *) subtitle{
return #"327 Anzac Parade, Wodonga, Victoria, Australia";
}
-(NSString *) title{
return #"Blazing Stump";
}
-(id)initWithCoordinate:(CLLocationCoordinate2D) c{
coordinate = c;
NSLog(#"%f,%f",c.latitude, c.longitude);
return self;
}
#end
#implementation Maps
-(CLLocationCoordinate2D) addressLocation{
NSString *locationString = [NSString stringWithContentsOfURL:[NSURL URLWithString:#"http://maps.google.com/maps/geo?q=327%20Anzac%20Parade,%20Wodonga,%20Victoria,%20Australia&output=csv&key=ABQIAAAAZs2zFXiuKBFeLpPgSfgMjBTHxw17-t8q3X3AgrE9NufATyE8MRRmwlyLMPtOSzliJQntEtaZ7T-Rww"]
encoding:NSUTF8StringEncoding error:nil];
NSArray *listItems = [locationString componentsSeparatedByString:#","];
double latitude = -36.139226;
double longitude = 146.911454;
if ([listItems count] >=4 && [[listItems objectAtIndex:0] isEqualToString:#"200"]){
latitude = [[listItems objectAtIndex:2] doubleValue];
longitude = [[listItems objectAtIndex:3] doubleValue];
}else {
//some error
}
CLLocationCoordinate2D location;
location.latitude = latitude;
location.longitude = longitude;
return location;
}
-(MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation{
MKPinAnnotationView *annView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"currentloc"];
annView.pinColor = MKPinAnnotationColorGreen;
annView.animatesDrop = TRUE;
annView.canShowCallout = YES;
annView.calloutOffset = CGPointMake(-5, 5);
return annView;
}
- (void)viewDidLoad {
MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.2;
span.longitudeDelta=0.2;
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];
//[mapView selectAnnotation:mLodgeAnnotation animated:YES];
[super viewDidLoad];
}
- (void)dealloc {
[super dealloc];
[viewController release];
}
have you made sure the map delgate has been set? Make sure you add the delagate to the header and on the view did load mapkit.delagte=self;
Dan
The below code is implemented it shows current location with blue color blinking and destination location with pin.
Now I need to draw route from my current location to destination location.
I don't know how to configure my current location to destination location to draw route in this code.
//NSString *latlong = [[NSString stringWithFormat:#"%f, %f", currentLocation.latitude, currentLocation.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
//NSString *dlatlong = [[NSString stringWithFormat:#"%f, %f", coordinate.latitude, coordinate.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
//NSString *url = [NSString stringWithFormat: #"http://maps.google.com/maps?ll=%#&saddr=%#&daddr=%#",
//latlong, latlong, dlatlong];
//[[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];
#import "MapViewController.h"
#implementation AddressAnnotation
#synthesize coordinate;
//#synthesize currentLocation;
- (NSString *)subtitle{
//return #"Sub Title";
return [NSString stringWithFormat:#"%lf, %lf", coordinate.latitude, coordinate.longitude];
}
- (NSString *)title{
//return #"Title";
return #"Allure-Exclusive";
//return [NSString stringWithFormat:#"%lf, %lf", coordinate.latitude, coordinate.longitude];
}
-(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];
}
- (void)locationUpdate:(CLLocation *)location{
[mapView setCenterCoordinate:location.coordinate];
if ([mapView showsUserLocation]==NO)
{[mapView setShowsUserLocation:YES];
}
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
// [self addressLocation];
[super viewDidLoad];
self.title=#"Map-View";
mapView.showsUserLocation=YES;
[self showAddress];
NSLog(#"address is %#",address);
//NSString *latlong = [[NSString stringWithFormat:#"%f, %f", currentLocation.latitude, currentLocation.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
//NSString *dlatlong = [[NSString stringWithFormat:#"%f, %f", coordinate.latitude, coordinate.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
//NSString *url = [NSString stringWithFormat: #"http://maps.google.com/maps?ll=%#&saddr=%#&daddr=%#",
//latlong, latlong, dlatlong];
//[[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];
}
-(void)showAddress{
MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.5f;
span.longitudeDelta=0.5f;
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]];
NSString *locationString=[NSString stringWithContentsOfURL:[NSURL URLWithString:urlString] encoding:NSUTF8StringEncoding error:nil];
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 *)mapView1 viewForAnnotation:(id <MKAnnotation>) annotation{
if (annotation==mapView.userLocation)
{
mapView1.userLocation.title=#"Current Location";
[mapView1 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;
}
}
//NSString *latlong = [[NSString stringWithFormat:#"%f, %f", currentLocation.latitude, currentLocation.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
//NSString *dlatlong = [[NSString stringWithFormat:#"%f, %f", coordinate.latitude, coordinate.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
//NSString *url = [NSString stringWithFormat: #"http://maps.google.com/maps?ll=%#&saddr=%#&daddr=%#",
// latlong, latlong, dlatlong];
//[[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];
- (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];
[currentLocation release];
[locationManager release];
[super dealloc];
}
#end
There is no feature to draw directions from source to destination in the map view using MKMapKit frame work.
You have to show directions using Google Maps in the iPhone by using the following code.
NSURL *url =[NSURL URLWithString:[NSString stringWithFormat:#"http://maps.google.com/maps?f=d&source=s_d&saddr=%#&daddr=%#&hl=en",[currentLoc stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding] ,[destLocation stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]];
[[UIApplication sharedApplication] openURL:url];
If you wrote this code when the directions button clicked. Then the App will close and Google Maps will open and it will shows the direction.
NSString *latlong = [[NSString stringWithFormat:#"%f, %f", mapView.userLocation.location.coordinate.latitude, mapView.userLocation.location.coordinate.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *dlatlong = [[NSString stringWithFormat:#"%f, %f",52.366428f,4.896349f] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *url = [NSString stringWithFormat: #"http://maps.google.com/maps?ll=%#&saddr=%#&daddr=%#",
latlong, latlong, dlatlong];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];
I went with this code... it shows the destination perfect and userlocation is at 0.000000,0.000000 values.
I need to see current location too.