I m showing a pin annotation statically, but i want to do it dynamically to show a lot of pins on map with title and subtitle.
Thx in advance.
I have an array of dictionaries with have two objects lat, long and i am doing this -
if ([resultArray count])
{
for (int i =0; i < [resultArray count]; i++)
{
NSDictionary *dict = [resultArray objectAtIndex:i];
MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
region.center.latitude = [[dict objectForKey:#"lat"] floatValue];
region.center.longitude = [[dict objectForKey:#"long"] floatValue];
region.span.longitudeDelta = 70.0f;
region.span.latitudeDelta = 70.0f;
MyAnnotations *ann = [[MyAnnotations alloc] init];
ann.title = #"title";
ann.coordinate = region.center;
[mapView addAnnotation:ann];
}
}
//
// MyAnnotation.h
//
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface MyAnnotation : NSObject <MKAnnotation> {
CLLocationCoordinate2D coordinate;
NSString *title;
NSString *subtitle;
}
#property (nonatomic, assign) CLLocationCoordinate2D coordinate;
#property (nonatomic, copy) NSString *title;
#property (nonatomic, copy) NSString *subtitle;
#end
//
// MyAnnotation.m
//
#import "MyAnnotation.h"
#implementation MyAnnotation
#synthesize coordinate,title,subtitle;
-(void)dealloc
{
[title release];
[subtitle release];
[super dealloc];
}
#end
use this delegate for callout -
- (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id )annotation
{
MKPinAnnotationView *pinView = nil;
static NSString *defaultPinID = #"com.invasivecode.pin";
pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if ( pinView == nil )
pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
pinView.pinColor = MKPinAnnotationColorPurple;
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[infoButton addTarget:self action:#selector(infoButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
pinView.rightCalloutAccessoryView = infoButton;
[defaultPinID release];
return pinView;
}
Related
I have created annotations that show up perfectly on my map but I am not sure how to implement the leftCalloutAccessoryView to show images.
MapViewAnnotation.h
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface MapViewAnnotation : NSObject <MKAnnotation>
#property (nonatomic, assign) CLLocationCoordinate2D coordinate;
#property (nonatomic, copy) NSString *title;
#property (nonatomic, copy) NSString *subtitle;
#end
MapViewAnnotation.m
#import "MapViewAnnotation.h"
#implementation MapViewAnnotation
#synthesize coordinate, title, subtitle;
#end
GroundsViewController.h
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#interface GroundsViewController : UIViewController <MKMapViewDelegate>
{
MKMapView *mapView;
}
#property (strong, nonatomic) IBOutlet UISegmentedControl *segment;
- (IBAction)changeSeg:(id)sender;
#end
GroundsViewController.m
#import "GroundsViewController.h"
#import "MapViewAnnotation.h"
#interface GroundsViewController ()
#end
// Centre in on Northern Ireland
#define Northern_Ireland_Latitude 54.629338;
#define Northern_Ireland_Longitude -6.668701;
//Span
#define The_Span 2.00f;
// Premiership
#define Ballymena_Latitude 54.870105;
#define Ballymena_Longitude -6.265076;
// Championship 1
#define Ards_Latitude 54.651629;
#define Ards_Longitude -5.684478;
// Championship 2
#define Annagh_Latitude 54.411372;
#define Annagh_Longitude -6.440355;
#implementation GroundsViewController
#synthesize segment;
- (IBAction)changeSeg:(id)sender {
if (segment.selectedSegmentIndex == 0) {
mapView.mapType = MKMapTypeStandard;
}
if (segment.selectedSegmentIndex == 1) {
mapView.mapType = MKMapTypeSatellite;
}
if (segment.selectedSegmentIndex == 2) {
mapView.mapType = MKMapTypeHybrid;
}
}
// When the view loads
- (void)viewDidLoad
{
mapView = [[MKMapView alloc] initWithFrame:self.view.bounds];
[self.view insertSubview:mapView atIndex:0];
// Create the region
MKCoordinateRegion myRegion;
// Center
CLLocationCoordinate2D center;
center.latitude = Northern_Ireland_Latitude;
center.longitude = Northern_Ireland_Longitude;
// Create the Span
MKCoordinateSpan span;
span.latitudeDelta = The_Span;
span.longitudeDelta = The_Span;
myRegion.center = center;
myRegion.span = span;
// Set our map view
[mapView setRegion:myRegion animated:YES];
NSMutableArray *locations = [[NSMutableArray alloc] init];
CLLocationCoordinate2D location;
MapViewAnnotation *myAnn;
//Premiership
// Pin to show Ballymena United F.C.
myAnn = [[MapViewAnnotation alloc] init];
location.latitude = Ballymena_Latitude;
location.longitude = Ballymena_Longitude;
myAnn.coordinate = location;
myAnn.title = #"Ballymena United F.C.";
myAnn.subtitle = #"The Showgrounds";
[locations addObject:myAnn];
// Championship 1
// Pin to show Ards F.C.
myAnn = [[MapViewAnnotation alloc] init];
location.latitude = Ards_Latitude;
location.longitude = Ards_Longitude;
myAnn.coordinate = location;
myAnn.title = #"Ards F.C.";
myAnn.subtitle = #"Clandeboye Park";
[locations addObject:myAnn];
// Championship 2
// Pin to show Annagh United F.C.
myAnn = [[MapViewAnnotation alloc] init];
location.latitude = Annagh_Latitude;
location.longitude = Annagh_Longitude;
myAnn.coordinate = location;
myAnn.title = #"Annagh United F.C.";
myAnn.subtitle = #"Tandragee Road";
[locations addObject:myAnn];
[self->mapView addAnnotations:locations];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
static NSString *identifier = #"MyLocation";
if ([annotation isKindOfClass:[PlaceMark class]]) {
MKPinAnnotationView *annotationView =
(MKPinAnnotationView *)[myMapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if (annotationView == nil) {
annotationView = [[MKPinAnnotationView alloc]
initWithAnnotation:annotation
reuseIdentifier:identifier];
} else {
annotationView.annotation = annotation;
}
annotationView.enabled = YES;
annotationView.canShowCallout = YES;
UIImageView *imvLeft = [[UIImageView alloc] init];
//Set Image
[annotationView setLeftCalloutAccessoryView:imvLeft];
return annotationView;
}
return nil;
}
i have NSMutableArray that contains multiple places- name,latitude and longitude. those location values are within the range of 5000 meter from current location. i need to display the annotation pins for those all location in a single map. is it possible?
thanks in advance..
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface MyAnnotation : NSObject <MKAnnotation>
{
CLLocationCoordinate2D coordinate;
NSString* title;
NSString* subtitle;
}
#property (nonatomic, assign)CLLocationCoordinate2D coordinate;
#property (nonatomic, copy)NSString *title;
#property (nonatomic, copy)NSString *subtitle;
#end
#import "MyAnnotation.h"
#implementation MyAnnotation
#synthesize title;
#synthesize subtitle;
#synthesize coordinate;
- (void)dealloc
{
[super dealloc];
self.title = nil;
self.subtitle = nil;
}
#end
//in your controller in .h
MyAnnotation* myAnnotation;
NSMutableArray *annotations;
//im .m file
- (void)viewDidLoad
{
[super viewDidLoad];
mapp.showsUserLocation = YES;
mapp.delegate = self;
annotations = [[NSMutableArray alloc] init];
for (int i=0; i<[arrayLatitude count]; i++)
{
CLLocationCoordinate2D theCoordinate1;
theCoordinate1.latitude = [[arrayLatitude objectAtIndex:i] floatValue];
theCoordinate1.longitude = [[arrayLongitude objectAtIndex:i] floatValue];
myAnnotation = [[MyAnnotation alloc] init];
myAnnotation.coordinate = theCoordinate1;
myAnnotation.title = [arrayName objectAtIndex:i];
[mapp addAnnotation:myAnnotation];
[annotations addObject:myAnnotation]
}
NSLog(#"%d",[annotations count]);
MKMapRect flyTo = MKMapRectNull;
for (id <MKAnnotation> annotation in annotations)
{
MKMapPoint annotationPoint = MKMapPointForCoordinate(annotation.coordinate);
MKMapRect pointRect = MKMapRectMake(annotationPoint.x, annotationPoint.y, 0, 0);
if (MKMapRectIsNull(flyTo))
{
flyTo = pointRect;
}
else
{
flyTo = MKMapRectUnion(flyTo, pointRect);
}
}
mapp.visibleMapRect = flyTo;
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
static NSString* AnnotationIdentifier = #"AnnotationIdentifier";
MKPinAnnotationView* pinView = [[[MKPinAnnotationView alloc]
initWithAnnotation:annotation reuseIdentifier:AnnotationIdentifier] autorelease];
pinView.animatesDrop = NO;
pinView.canShowCallout = YES;
pinView.pinColor = MKPinAnnotationColorRed;
UIImageView *icon = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[NSString stringWithFormat:#"%i.jpg",rand()%3908+1]]];
pinView.leftCalloutAccessoryView = icon;
[icon release];
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton setTitle:nil forState:UIControlStateNormal];
[rightButton addTarget:self
action:#selector(myMethod:)
forControlEvents:UIControlEventTouchUpInside];
pinView.rightCalloutAccessoryView = rightButton;
return pinView;
}
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view {
NSLog(#"Title : %#",view.annotation.title);
NSLog(#"Latitude : %f", view.annotation.coordinate.latitude);
NSLog(#"Longitude : %f", view.annotation.coordinate.longitude);
}
you can ad infinite number of MKAnnotationPoint s
I am trying to add annotations on my mapview but I am not able to add them. Can someone suggest me where I am doing wrong? Code: Code to add the map:
mapview = [[MKMapView alloc] initWithFrame:CGRectMake(10, 175, 300, 268)];
mapview.delegate = self;
mapview.userInteractionEnabled = TRUE;
[mapview setZoomEnabled:TRUE];
[mapview setScrollEnabled:TRUE];
mapview.showsUserLocation = TRUE;
[self.view addSubview:mapview];
//adding annotations in another method:
for (id annotation in mapview.annotations) {
[mapview removeAnnotation:annotation];
}
for(int i =0;i<arrEventList.count;i++){
CLLocationCoordinate2D theCoordinate;
theCoordinate.latitude = [[NSString stringWithFormat:#"%#",[(NSDictionary*)[arrEventList objectAtIndex:i] objectForKey:#"lat"]] floatValue];
theCoordinate.longitude = [[NSString stringWithFormat:#"%#",[(NSDictionary*)[arrEventList objectAtIndex:i] objectForKey:#"lng"]] floatValue];
MyLocation *annotation = [[[MyLocation alloc] initWithName:[(NSDictionary*)[arrEventList objectAtIndex:i] objectForKey:#"event"] address:[(NSDictionary*)[arrEventList objectAtIndex:i] objectForKey:#"place"] coordinate:theCoordinate] autorelease];
[mapview addAnnotation:annotation];
//[annotations addObject:myAnno.annotation];
}
// delegate method:
- (MKAnnotationView *) mapView: (MKMapView *) mapView viewForAnnotation: (id<MKAnnotation>) annotation {
static NSString *identifier = #"MyLocation";
if ([annotation isKindOfClass:[MyLocation class]]) {
MKPinAnnotationView *annotationView = (MKPinAnnotationView *) [mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if (annotationView == nil) {
annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
} else {
annotationView.annotation = annotation;
}
annotationView.enabled = YES;
annotationView.canShowCallout = YES;
annotationView.image=[UIImage imageNamed:#"annotation.png"];//here we use a nice image instead of the default pins
return annotationView;
}
return nil;
}
Above delegate method is only called for self location but it is not called for other annotations that I want to add.
Can someone point me to my mistakes
#interface MyLocation : NSObject <MKAnnotation> {
NSString *_name;
NSString *_address;
CLLocationCoordinate2D _coordinate;
}
#property (copy) NSString *name;
#property (copy) NSString *address;
#property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
- (id)initWithName:(NSString*)name address:(NSString*)address coordinate:(CLLocationCoordinate2D)coordinate;
#end
//Mylocation class:
#implementation MyLocation
#synthesize name = _name;
#synthesize address = _address;
#synthesize coordinate = _coordinate;
- (id)initWithName:(NSString*)name address:(NSString*)address coordinate:(CLLocationCoordinate2D)coordinate {
if ((self = [super init])) {
_name = [name copy];
_address = [address copy];
_coordinate = coordinate;
}
return self;
}
- (NSString *)title {
if ([_name isKindOfClass:[NSNull class]])
return #"Unknown charge";
else
return _name;
}
- (NSString *)subtitle {
return _address;
}
I found the problem. My code is correct. The values of latittude and longitudes were some how interchanged. My mistake but I have corrected it now
I have some map view controller and I have a custom annotation.
Custom annotation code:
#import <Foundation/Foundation.h>
#import <MapKit/MKAnnotation.h>
#interface DisplayMapAnnotation : NSObject <MKAnnotation> {
CLLocationCoordinate2D coordinate;
NSString *title;
NSString *subtitle;
NSString *detailID;
}
#property (nonatomic, assign) CLLocationCoordinate2D coordinate;
#property (nonatomic, retain) NSString *title;
#property (nonatomic, retain) NSString *subtitle;
#property (nonatomic, retain) NSString *detailID;
#end
#import "DisplayMapAnnotation.h"
#implementation DisplayMapAnnotation
#synthesize coordinate, title, subtitle, detailID;
- (NSString *) title
{
return title;
}
- (NSString *) subtitle
{
return subtitle;
}
- (NSString *) detailID
{
return detailID;
}
- (id)initWithCoordinate:(CLLocationCoordinate2D) c
{
coordinate=c;
return self;
}
- (void) dealloc
{
[title release];
[subtitle release];
[detailID release];
[super dealloc];
}
A here is my map view code where I create the annotation:
In viewDidLoad method I make something like this:
for (FeedItems *aItem in geoDataList) {
[mapView setZoomEnabled:YES];
[mapView setScrollEnabled:YES];
MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
region.center.latitude = [aItem.geoLat doubleValue];
region.center.longitude = [aItem.geoLng doubleValue];
region.span.longitudeDelta = kLatitudeDelta;
region.span.latitudeDelta = kLongitudeDelta;
[mapView setRegion:region animated:YES];
ann = [[DisplayMapAnnotation alloc] init];
ann.title = aItem.job;
ann.subtitle = aItem.jobCompany;
ann.detailID = aItem.jobID;
ann.coordinate = region.center;
[mapView addAnnotation:ann];
[aItem release];
}
- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation
{
MKPinAnnotationView *pinView = nil;
if (annotation != self.mapView.userLocation) {
static NSString *defaultPinID = #"com.invasivecode.pin";
pinView = (MKPinAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if (pinView == nil)
pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
pinView.pinColor = MKPinAnnotationColorRed;
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
if (mapIdentifier == 0) {
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
//NSInteger annotationValue = [annView indexOfObject:annotation];
//rightButton.tag = annotationValue;
[rightButton addTarget:self action:#selector(detailButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
pinView.rightCalloutAccessoryView = rightButton;
}
} else {
[self.mapView.userLocation setTitle:#"your location"];
}
return pinView;
}
And here is my problem (this method):
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSLog(#"Detail id: %#", view.annotation.detailID);
}
When I will log detail id Xcode say: "Property 'detailID' not found on object of type 'id'" What is wrong ?
It does not know that the annotation is your custom annotation:
NSLog(#"Detail id: %#", view.annotation.detailID);
You could cast it like this to silence the warning
NSLog(#"Detail id: %#", [(DisplayMapAnnotation*)view.annotation detailID]);
after having checked that it is a DisplayMapAnnotation*
if ([view.annotation isKindOfClass:[DisplayMapAnnotation class]])
I found a short guide on how to load "annotation data" from a plist and add those annotations (pins) to a MapView.
My question is if anyone can tell me how I would customize the pins the most easily? As an example, I would like to define a color and an image in the plist and then have it set when adding the pins.
The pins are added like this:
MyAnnotation.m:
#implementation MyAnnotation
#synthesize title, subtitle, coordinate;
-(void) dealloc {
[super dealloc];
self.title = nil;
self.subtitle = nil;
}
MyAnnotation.h
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface MyAnnotation : NSObject<MKAnnotation> {
CLLocationCoordinate2D coordinate;
NSString *title;
NSString *subtitle;
}
#property (nonatomic, assign) CLLocationCoordinate2D coordinate;
#property (nonatomic, copy) NSString* title;
#property (nonatomic, copy) NSString* subtitle;
Running through the plist in ViewDidLoad in MapViewController.m (array containg dictionaries for each pin) and adding annotations.
NSString *path = [[NSBundle mainBundle] pathForResource:#"Annotations" ofType:#"plist"];
NSMutableArray* anns = [[NSMutableArray alloc] initWithContentsOfFile:path];
for(int i = 0; i < [anns count]; i++) {
float realLatitude = [[[anns objectAtIndex:i] objectForKey:#"latitude"] floatValue];
float realLongitude = [[[anns objectAtIndex:i] objectForKey:#"longitude"] floatValue];
MyAnnotation* myAnnotation = [[MyAnnotation alloc] init];
CLLocationCoordinate2D theCoordinate;
theCoordinate.latitude = realLatitude;
theCoordinate.longitude = realLongitude;
myAnnotation.coordinate = theCoordinate;
myAnnotation.title = [[anns objectAtIndex:i] objectForKey:#"title"];
myAnnotation.subtitle = [[anns objectAtIndex:i] objectForKey:#"subtitle"];
[mapView addAnnotation:myAnnotation];
[annotations addObject:myAnnotation];
[myAnnotation release];
}
EDIT:
I have added the viewForAnnotation method which sets the color but how can I set the color of each pin individually?
-(MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id <MKAnnotation>)annotation {
MKPinAnnotationView *pinView = nil;
if(annotation != mapView.userLocation) {
static NSString *defaultPinID = #"com.invasivecode.pin";
pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if ( pinView == nil ) pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
pinView.pinColor = MKPinAnnotationColorPurple;
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
}
else {
[mapView.userLocation setTitle:#"I am here"];
}
return pinView;
}
Solved! It can be done like this in the viewForAnnotation method:
for(MyAnnotation* a in mapView.annotations) {
if(annotation == a && annotation != mapView.userLocation) {
pinView.image = [UIImage imageNamed:a.annImage];
}
}