I'm trying to perform a segue when a map annotation pin is tapped. Im using a custom annotation class if that makes a difference.
I've tried
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view {
NSLog(#"annotation selected");
[self performSegueWithIdentifier:#"mySegue" sender:self];
}
but my NSLog isnt running so I assume the method isnt getting called.
The only other things I've done are add the annotation pin to my map view and set my view controller as the map view delegate.
Here is how I added the annotation to the mapview
SPMapAnnotation *pin = [[SPMapAnnotation alloc] init];
pin.coordinate = spotLocation.coordinate;
pin.title = [spot objectForKey:#"spotName"];
[self.mapView addAnnotation:pin];
How can I make this work? That didSelectAnnotation method seems like it would make this easy to do but I'm not sure how it works.
Apparently I forgot I didnt allocate my mapView until viewDidAppear. Just needed to add
self.mapView.delegate = self;
after I alloc and inited it.
Implement following delegate method
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
MKPinAnnotationView *annotationView = nil;
if ([annotation isKindOfClass:[SPMapAnnotation class]])
{
annotationView = (MKPinAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:#"Pin"];
if (annotationView == nil)
{
annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"Pin"];
annotationView.canShowCallout = YES;
annotationView.animatesDrop = YES;
}
}
return annotationView;
}
as didSelectAnnotationView will not be called for standard annotation pin, you need to return MKAnnotationView for didSelectAnnotationView to be called.
Related
I have added a custom annotation and a percentage label on it.
By pressing the button in red circle, I want to change value of label from percentage to business name.
My Code:
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
static NSString *identifier = #"MyLocation";
if ([annotation isKindOfClass:[BusinessCustomAnnotation class]]) {
MKAnnotationView *annotationView = (MKAnnotationView *) [mapViewOffers dequeueReusableAnnotationViewWithIdentifier:identifier];
if (annotationView == nil) {
annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
UILabel* category = [[UILabel alloc] initWithFrame:CGRectMake(annotationView.frame.size.width / 2, 15, 55, 20)];
BusinessCustomAnnotation *myAnnotationView = (BusinessCustomAnnotation *)annotation;
NSLog(#"Type One Offer! = %i", mapTypes);
[category setAdjustsFontSizeToFitWidth:YES];
if (mapTypes == 1) {
category.text = [NSString stringWithFormat:#"%#%#", myAnnotationView.offerPercentage, #"%"];
}else if (mapTypes == 2){
category.text = myAnnotationView.businessName;
}else if (mapTypes == 3){
category.text = myAnnotationView.businessName;
}
[category setMinimumScaleFactor:1.0];
category.font = [UIFont systemFontOfSize:15.0 weight:5.0];
category.textAlignment = NSTextAlignmentCenter;
[annotationView addSubview:category];
annotationView.enabled = YES;
annotationView.canShowCallout = NO;
annotationView.image = [UIImage imageNamed:#"iconMapMarker"];//here we use a nice image instead of the default pins
} else {
annotationView.annotation = annotation;
}
return annotationView; }return nil; }
Above mapview delegate is calling for one time only.
Waiting for the solution.
Thanks in advance for helping me.
There are two ways of detecting user interaction with your annotation view. The common technique is to define a callout (that standard little popover bubble that you see when you tap on a pin in a typical maps app) for your MKAnnotationView. And you create the annotation view for your annotation in the standard viewForAnnotation method:
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
MKAnnotationView *annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"loc"];
annotationView.canShowCallout = YES;
annotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
return annotationView;
}
By doing this, you get a callout, but you're adding an right accessory, which is, in my example above, a disclosure indicator. That way, they tap on your annotation view (in my example above, a pin on the map), they see the callout, and when they tap on that callout's right accessory (the little disclosure indicator in this example), your calloutAccessoryControlTapped is called.
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
//first check your view class here
// here your code for change text on view
}
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
//first check your view class here
// here your code for change text on view
}
You need to refresh the annotations. In Action of button try this :
mapTypes = 2
for (id<MKAnnotation> annotation in mapView.annotations)
{
[mapView removeAnnotation:annotation];
[mapView addAnnotation:annotation];
}
You can't make any changes to already added annotation pin.To make any changes to the annotation pin you need to remove all the pin and add it back.
Annotations don't refresh.
You have to remove all existing annotations with
[self.mapView removeAnnotations:self.mapView.annotations];
and update your "mapTypes" variable value to "2" or "3" in order to show business name.
Then you can can add your annotations again with [MKMapView addAnnotation:].
Helloall in MapKit I can't figure out how to get the animateDrop animation to run, I'm using 1 viewController with both CoreLocation and MapKit running on it.
I read that I need to make sure I have set a delegate from the mapview to self in viewDidLoad which I have done and also to make sure I am using MKPinAnnotationView to get access to the animateDrop property, which I think I have done also?
I'm building for iOS8 also.
Any help would be great
//I'm not showing all code just showing some of the related parts of code below
.h
//I do set standard imports UIKit, CoreLocation, MapKit etc
#interface ViewController : UIViewController <CLLocationManagerDelegate, MKMapViewDelegate>
//I do set various properties related. CLLocationManager, CLLocation, MKMapView
.m
- (void)viewDidLoad {
[super viewDidLoad];
self.mapView.delegate = self;
MKPointAnnotation *myAnnotation = [[MKPointAnnotation alloc] init];
myAnnotation.coordinate = CLLocationCoordinate2DMake(37.813186, 144.962979);
myAnnotation.title = #"My title";
myAnnotation.subtitle = #"My sub title";
[self.mapView addAnnotation:myAnnotation];
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
// If it's the user location, just return nil.
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
// Handle any custom annotations.
if ([annotation isKindOfClass:[MKPointAnnotation class]])
{
// Try to dequeue an existing pin view first.
MKPinAnnotationView *pinView = (MKPinAnnotationView*)[mapView dequeueReusableAnnotationViewWithIdentifier:#"CustomPinAnnotationView"];
//pinView.animatesDrop = YES;
if (!pinView)
{
// If an existing pin view was not available, create one.
pinView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"CustomPinAnnotationView"];
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
} else {
pinView.annotation = annotation;
}
return pinView;
}
return nil;
}
Any help would be great
The following code below is show custom pin (picture as pin). it can use normally.
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
PVAttractionAnnotationView *annotationView = [[PVAttractionAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"Attraction"];
annotationView.canShowCallout = YES;
return annotationView;
}
Then use following code to show current location
[self.mapView setUserTrackingMode:MKUserTrackingModeFollowWithHeading];
XCODE jump to main.m and show
Thread 1:Signal SIGABRT
On the other hand if i use the following code
[self.mapView setUserTrackingMode:MKUserTrackingModeFollowWithHeading];
and unused all of the following code
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
PVAttractionAnnotationView *annotationView = [[PVAttractionAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"Attraction"];
annotationView.canShowCallout = YES;
return annotationView;
}
Application will show current location normally but it's not show custom pin. It's show the red pin that is the default of system cause i've unused that code.
How can i make custom pin and use FollowWithHeading mode together?
..I'm sorry I do not use English well.
You need a slight change to your viewForAnnotation that examines the class of the annotation and returns the appropriate view. By returning nil the system will use the default view. You also need some additional code to implement view re-use correctly -
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
MKAnnotationView *annotationView=nil;
if ([annotation isKindOfClass:[PVAttractionAnnotation class]]) // Note - put your custom annotation class here
{
annotationView =(MKAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:#"Attraction"];
if (annotationView == nil)
{
annotationView = [[PVAttractionAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"Attraction"];
annotationView.canShowCallout = YES;
}
else
{
annotationView.annotation=annotation;
}
}
return annotationView;
}
Environment
Xcode: 5.0.2, Device: iPhone,
iOS: iOS 7
I am trying to use the mapView:viewForAnnotation: delegate method. Within this method, if I create the MKAnnotationView object, the pin gets displayed without any issue. Here is the working code:
-(MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[CustomeAnnotation class]])
{
// CustomeAnnotation *myLocation = (CustomeAnnotation *)annotation;
MKAnnotationView *annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:#"MyCustomAnnotation"];
if (annotationView == nil)
{
MKAnnotationView *annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"MyCustomAnnotation"];
annotationView.enabled = YES;
annotationView.canShowCallout = YES;
//annotationView.image = [UIImage imageNamed:#"park_icon"];
annotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
}
// annotationView = myLocation.createAnnotationView;
else
annotationView.annotation = annotation;
//return nil;
return annotationView;
}
else
return nil;
}
When I create a class method and move the MKAnnotationView object creation and property setting within the class method and I call it from the mapView:viewForAnnotation: delegate method, the pin does not appear.
Here is the code for the two methods in question (mapView:viewForAnnotation: and createAnnotationView):
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.mapView.delegate = self;
CLLocationCoordinate2D baysideParkCoordinates = CLLocationCoordinate2DMake(25.774407, -80.185797);
CustomeAnnotation *baysideParkAnnotation = [[CustomeAnnotation alloc] initWithTitle:#" Bayfront Park"
coordinate:baysideParkCoordinates];
[self.mapView addAnnotation:baysideParkAnnotation];
}
-(MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[CustomeAnnotation class]])
{
CustomeAnnotation *myLocation = (CustomeAnnotation *)annotation;
MKAnnotationView *annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:#"MyCustomAnnotation"];
if (annotationView == nil)
annotationView = [myLocation createAnnotationView];
else
annotationView.annotation = annotation;
// return nil;
return annotationView;
}
else
return nil;
}
#end
The custom class
#import "CustomeAnnotation.h"
#implementation CustomeAnnotation
-(id)initWithTitle:(NSString *)newTitle coordinate:(CLLocationCoordinate2D) newCoordinate
{
self = [super init];
if (self)
{
self.title = newTitle;
self.coordinate = newCoordinate;
}
return self;
}
-(MKAnnotationView *)createAnnotationView
{
MKAnnotationView *annotationView = [[MKAnnotationView alloc] initWithAnnotation:self reuseIdentifier:#"MyCustomAnnotation"];
annotationView.enabled = YES;
annotationView.canShowCallout = YES;
//annotationView.image = [UIImage imageNamed:#"park_icon"];
annotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
return annotationView;
}
#end
The import statement for the CustomeAnnotation class is included in the ViewController.h file.
At this point I believe I am not passing back correctly the MKAnnotationView object back to the method call in the ViewController implementation file. Could anyone tell me what is it that I am doing wrong on the second set of code?
In the second set of code, in createAnnotationView, the annotation is not showing because it's not setting the image.
Note that an MKAnnotationView does not have a default image so if you don't set it, the annotation is invisible.
Uncomment the setting of the image (or create an MKPinAnnotationView instead).
The reason the first set of code works (even though it is also creating an MKAnnotationView) is because there's actually a small bug in the code:
MKAnnotationView *annotationView = [mapView dequeue...
if (annotationView == nil)
{
MKAnnotationView *annotationView = [[MKAnnotationView alloc] init...
//^^^^^^^^^^^^^^^^ Here, the code declares a NEW, LOCAL variable
// named annotationView but it has no connection to the
// annotationView declared outside the if-block.
Because the annotationView declared outside the if is never set, it stays nil and that's what the delegate method actually returns.
When you return nil from viewForAnnotation, the map view creates a default view for you (a red pin for your annotations, a blue dot for the user location).
To fix the first set of code, don't declare a new, local variable. Just set the variable:
MKAnnotationView *annotationView = [mapView dequeue...
if (annotationView == nil)
{
annotationView = [[MKAnnotationView alloc] init...
and don't forget to set the image (or create an MKPinAnnotationView instead).
I am using MapKit and I am having the exact problem.
This is my code:
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
static NSString *identifier = #"MyLocation";
if ([annotation isKindOfClass:[MyLocation class]]) {
MKAnnotationView *annotationView = (MKAnnotationView *) [mymap_ios dequeueReusableAnnotationViewWithIdentifier:identifier];
if (annotationView == nil) {
annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
annotationView.enabled = YES;
annotationView.canShowCallout = YES;
} else {
annotationView.annotation = annotation;
}
annotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
return annotationView;
}
return nil;
}
In this code, I can see the pin but not the blue button next to it so as. It seems that I have forgotten to do this:
mymap_ios.delegate=self;
But when I add this, the marker is not shown at all.
Can you help me on that?
When you don't set the map view's delegate, it doesn't call your viewForAnnotation and creates a default red pin without any accessory buttons.
When you set the delegate, it is calling your viewForAnnotation method but you are creating a plain MKAnnotationView which by default does not have any pre-set image or view (it's blank).
Either set the annotation view's image, add some content to the view, or simply create an MKPinAnnotationView instead of an MKAnnotationView:
MKPinAnnotationView *annotationView = (MKPinAnnotationView *) [mymap_ios ...
if (annotationView == nil) {
annotationView = [[MKPinAnnotationView alloc] init...
Also make sure that the annotation objects you add are of type MyLocation otherwise they will appear as plain red pins without an accessory button.