Pass data to detailView when annotation tapped on mapview - iphone

I have a map view and there are 10 store locations which data comes via webservice. I just want to push to my detail view to show address, telephone and other informations of the clicked store.
I need to pass data to my detailview when user tapped or touch up inside to a annotation on mapkit. There are 10 annotations in my mapview and first I want to know, how can I understand or how can I get the annotationID of which annotation is clicked?
this is the method I return pins
- (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];
pinView.animatesDrop=YES;
pinView.canShowCallout=YES;
pinView.pinColor=MKPinAnnotationColorPurple;
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton setTitle:annotation.title forState:UIControlStateNormal];
[rightButton addTarget:self
action:#selector(showDetails:)
forControlEvents:UIControlEventTouchUpInside];
pinView.rightCalloutAccessoryView = rightButton;
return pinView;
}
/* and my action method for clicked or tapped annotation: */
- (IBAction)showDetails:(id)sender{
NSLog(#"Annotation Click");
[[mtMap selectedAnnotations]objectAtIndex:0];
magazaDetayViewController *detail = [[magazaDetayViewController
alloc]initWithNibName:#"magazaDetayViewController" bundle:nil];
detail.sehir=#"";
detail.magazaAdi=#"";
detail.adres=#"";
detail.telefon=#"";
detail.fax=#"";
[self.navigationController pushViewController:detail animated:YES];
}
if i can just get the clicked annotation index no i can fill detail properties with my array.
if this is impossible is there any other way to do it?

First in your annotaion view delegat make a button to go in detail view like bellow:
-(MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation{
MKPinAnnotationView *mypin = [[MKPinAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:#"current"];
mypin.pinColor = MKPinAnnotationColorPurple;
mypin.backgroundColor = [UIColor clearColor];
UIButton *goToDetail = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
mypin.rightCalloutAccessoryView = myBtn;
mypin.draggable = NO;
mypin.highlighted = YES;
mypin.animatesDrop = TRUE;
mypin.canShowCallout = YES;
return mypin;
}
Now use the following delegate whenever the button in annotationView will get tapped the following delegate will be called from where you can easly get which particular annotaion's button is tapped
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view
calloutAccessoryControlTapped:(UIControl *)control
{
annotation *annView = view.annotation;
detailedViewOfList *detailView = [[detailedViewOfList alloc]init];
detailView.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
detailView.address = annView.address;
detailView.phoneNumber = annView.phonenumber;
[self presentModalViewController:detailView animated:YES];
}
here annotaion is a class importing MKAnnotaion.h and address and phonenumber are properties of annotaion class you can make many more while the address and phoneNumber properties of detailView class are strong. So that you can pass values. Hope this will help you!

Bellow is Delegate method of MapView......
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
}
when user tap annotation pin above method call automaticaly if method define in .m file nut first declare MKMapViewDelegate delegate in .h file
and also you can get title or subtitle and id from google place API....
link is...
https://developers.google.com/maps/documentation/places/

for(int i=0; i<[arrLat count];i++) {
CLLocationCoordinate2D theCoordinate1;
konumpin* myAnnotation1=[[konumpin alloc] init];
theCoordinate1.latitude = [[arrLong objectAtIndex:i] doubleValue];
theCoordinate1.longitude = [[arrLat objectAtIndex:i] doubleValue];
myAnnotation1.coordinate=theCoordinate1;
myAnnotation1.title=[arrMagaza objectAtIndex:i];
[annotations addObject:myAnnotation1];
}
[mtMap addAnnotations:annotations];

Related

iOS- Get button on MKAnnotationView to delete pin

I have created a MKAnnotationView and do add a UIButton on it. Now I would like that button to remove the pin it is in.
This is how I add the button:
- (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id <MKAnnotation>)annotation
{
MKPinAnnotationView *pinAnnotation = nil;
if(annotation != myMapView.userLocation)
{
NSString *defaultPinID = [[NSString alloc] initWithFormat:#"pin%d",pinCount];
pinAnnotation = (MKPinAnnotationView *)[myMapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if ( pinAnnotation == nil )
pinAnnotation = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
pinAnnotation.canShowCallout = YES;
//// ADDING MY BUTTON
UIButton *deleteButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
pinAnnotation.rightCalloutAccessoryView = deleteButton;
//// ADDING IT'S ACTION
[deleteButton addTarget:self action:#selector(deletePin) forControlEvents:UIControlEventTouchUpInside];
}
pinCount++;
return pinAnnotation;
}
As you can see there, I set the action to call this method:
-(void)deletePin
{
//What to put here...?
}
How can I make that action delete it's button's pin?
I figured maybe sending the id thru or something, but am not sure how.
With annotation callout accessory views, do not use your own target/action method.
Instead, use the map view's calloutAccessoryControlTapped delegate method which will make this job much easier.
Remove the addTarget line and your custom method. Then implement the delegate method instead:
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view
calloutAccessoryControlTapped:(UIControl *)control
{
[mapView removeAnnotation:view.annotation];
}
Also, unrelated, but the way you are setting the re-use identifier is wrong and defeats re-usability by assigning a different id to every annotation. The following is recommended:
- (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id <MKAnnotation>)annotation
{
MKPinAnnotationView *pinAnnotationView = nil;
if (annotation != myMapView.userLocation)
{
NSString *reuseId = #"StandardPin";
pinAnnotationView = (MKPinAnnotationView *)[myMapView dequeueReusableAnnotationViewWithIdentifier:reuseId];
if ( pinAnnotationView == nil )
{
pinAnnotationView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:reuseId] autorelease];
pinAnnotationView.canShowCallout = YES;
UIButton *deleteButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
pinAnnotationView.rightCalloutAccessoryView = deleteButton;
}
else
//update annotation property if view is being re-used...
pinAnnotationView.annotation = annotation;
}
return pinAnnotationView;
}
Get the sender in your callback
[deleteButton addTarget:self action:#selector(deletePin:) forControlEvents:UIControlEventTouchUpInside];
-(void)deletePin:(id)sender
{
//What to put here...?
}
Then get the MKAnnotation associated with the MKPinAnnotationView, remove it from the MKMapView's annotations and redraw ([mapView setNeedsDisplay])

show another view when map annotation are clicked

I have a map with only one annotation.I created a simple class which I want it to show when the user clicks on the annotation.The problem is that when I click on the annotation nothing happens.
Here is my code:
- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFindPlacemark:(MKPlacemark *)placemark{
NSLog(#"Reverse Geocoder completed");
mPlacemark=placemark;
[mapView addAnnotation:placemark];
}
- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation{
MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"currentloc"];
annView.animatesDrop=TRUE;
//create UIButton for annotation
UIButton *detailButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
//NSInteger annotationValue = [self.annotations indexOfObject:annotation];
[detailButton addTarget:self action:#selector(showDetailView:) forControlEvents:UIControlEventTouchUpInside];
annView.rightCalloutAccessoryView=detailButton;
return annView;
}
-(void)showDetailView:(id)sender{
NSLog("inside the stupid method");
MyDetailViewController *detailView=[[MyDetailViewController alloc] initWithNibName:#"MyDetailViewController" bundle:nil];
[[self navigationController] pushViewController:detailView animated:YES];
[detailView release];
}
My showDetailView function never gets called.Please help me.I'm new to iphone and I might forget a simple thing.Thanks
Still not working!!!!
First, check that the map view's delegate is set otherwise your viewForAnnotation method will not get called.
Next, the accessory button appears on the annotation's callout which will only appear if you set canShowCallout:
annView.canShowCallout = YES;
Next, instead of using your own method to handle the button action, it's much better to use the map view's own calloutAccessoryControlTapped delegate method which gets called when tapping an accessory:
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSLog(#"inside the stupid method");
//Here, the annotation tapped can be accessed using view.annotation
}
Remove the [detailButton addTarget... line from viewForAnnotation.
Also note your NSLog in the showDetailView method is missing the leading # which will result in a crash when the method does get called.
Another thing is you should use dequeueReusableAnnotationViewWithIdentifier in viewForAnnotation to enable annotation view re-use.
Example as requested:
- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation
{
static NSString *annReuseId = #"currentloc";
MKPinAnnotationView *annView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:annReuseId];
if (annView == nil)
{
annView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:annReuseId];
annView.animatesDrop = YES;
annView.canShowCallout = YES;
UIButton *detailButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
annView.rightCalloutAccessoryView=detailButton;
}
else {
annView.annotation = annotation;
}
return annView;
}
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSLog(#"calloutAccessoryControlTapped: annotation = %#", view.annotation);
MyDetailViewController *detailView=[[MyDetailViewController alloc] initWithNibName:#"MyDetailViewController" bundle:nil];
//here, can set annotation info in some property of detailView
[[self navigationController] pushViewController:detailView animated:YES];
[detailView release];
}
Ok. If you are using storyboards, you need to create a segue between the map view controller and then where the below code exists:
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSLog(#"calloutAccessoryControlTapped: annotation = %#", view.annotation);
MyDetailViewController *detailView=[[MyDetailViewController alloc] initWithNibName:#"MyDetailViewController" bundle:nil];
//here, can set annotation info in some property of detailView
[[self navigationController] pushViewController:detailView animated:YES];
[detailView release];
}
Use the following code instead:
NSLog(#"calloutAccessoryControlTapped: annotation = %#", view.annotation);
[self performSegueWithIdentifier:#"DetailViewController" sender:self];
This will give you the movement to the detailed view.
write your function like this:
-(IBAction)showDetailView:(id)sender{
NSLog("inside the stupid method");
MyDetailViewController *detailView=[[MyDetailViewController alloc] initWithNibName:#"MyDetailViewController" bundle:nil];
[[self navigationController] pushViewController:detailView animated:YES];
[detailView release];
}
you have to set the map delegate to self like this,
mapview.delegate=self; (if your calling the method in same page)
if you don't assign the delegate in your code the respective methods won't be called, so check if you have the above mentioned line.
Replace -(IBAction)showDetailView:(UIView*)sender with following...
-(void)showDetailView:(id)sender

How to know which annoation has been tapped?

I am doing mapview. In my app there is code which gets current location of the user in latitude and longitude. Using this coordinates i am creating a soap request. In response i will get information(zip,city,state,country,coordinates) of locations. I have saved this information in NSDictionary.
This is the code for creating annotation.
MapLocation *annotation = [[MapLocation alloc] initWithCoordinate:location ownerInst:ownerInstitution];
[mapView addAnnotation:annotation];
[annotation release];
- (MKAnnotationView *) mapView:(MKMapView *)theMapView viewForAnnotation:(id <MKAnnotation>) annotation {
MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"currentloc"];
annView.pinColor = MKPinAnnotationColorGreen;
annView.animatesDrop=TRUE;
annView.canShowCallout = YES;
UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[infoButton addTarget:self action:#selector(infoButtonPressed) forControlEvents:UIControlEventTouchUpInside];
annView.rightCalloutAccessoryView = infoButton;
annView.calloutOffset = CGPointMake(-5, 5);
return annView;
}
This is the delegate method when user tap the detaildisclosurebutton in the callout.
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
On the tap of detail disclosure button new view will be loaded. And in this new view, information which i retrieved from the server will be displayed.
Upto this everything is fine. I have more than one annotations in the map. But when particular annotation is tapped how will i implement the code to show the information (which i get from the server)related to that annotation.
I hope I am clear in expressing my problem. Feel free to ask further details.
The MKAnnotationView *view which you get from the delegate method contains the Annotation. You can store all information in your MapLocation class you need to display.
MapLocation *annotation = [[MapLocation alloc] initWithCoordinate:location ownerInst:ownerInstitution];
[mapView addAnnotation:annotation];
[mapView addAdditionalCustomInformation: SomeInfo]; //you need to write your custom methods for that ;)
[annotation release];

How to show the title on my Pin Annotation and make it clickable to perform some action?

In my MapView i have pin dropped on certain locations and now i want to display some title on these pin annotation and make it clickable so that on click i can push another view.
Please help !!!!
This is the code snippet:
Custom Annotation View using this method
- (MKAnnotationView *)mapView:(MKMapView *)map viewForAnnotation:(id <MKAnnotation>)annotation
{
if (annotation == mapView.userLocation) return nil;
MKPinAnnotationView *pin = (MKPinAnnotationView *) [mapView dequeueReusableAnnotationViewWithIdentifier: #"asdf"];
if (pin == nil)
{
pin = [[[MKPinAnnotationView alloc] initWithAnnotation: annotation reuseIdentifier: #"asdf"] autorelease];
}
else
{
pin.annotation = annotation;
}
pin.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
pin.pinColor = MKPinAnnotationColorRed;
pin.animatesDrop = YES;
[pin setEnabled:YES];
[pin setCanShowCallout:YES];
return pin;
}
Delegate method which get's called when you tap on the button
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
//DetailPg=[[BookMarksDetail alloc]initWithNibName:#"BookMarksDetail" bundle:nil];
//DetailPg.selectRest =[view.annotation title]; //In addition, to get the Title of the AnnotationView.
//DetailPg.m=1;
//[self.navigationController pushViewController:DetailPg animated:YES];
//[DetailPg release];
}
The answers to this are all provided in Apples Docs I suggest you read them more closely. However to have a call out all you need to do is set the title property.
For buttons and such you need to use the MapView Delegate method:
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
_pin.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
Apple suggests reusing annotations this is something you will need to take into account.

Getting wrong annotation from MapView Delegate method

I have declared the following in my .h file:
Annotation *annoForMoreDetails.
However when I try to set it to the current annotation in the method
- (MKAnnotationView *)mapView:(MKMapView *)mapViews viewForAnnotation:(id <MKAnnotation> )annotation
It gets set to the wrong object.
Here is my code:
- (MKAnnotationView *)mapView:(MKMapView *)mapViews viewForAnnotation:(id <MKAnnotation> )annotation
{
NSLog(#"welcome into the map view annotation");
// if it's the user location, just return nil.
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
for (annotation in [mapView annotations]) {
if ([[mapView annotations] containsObject:annotation]) {
annoForMoreDetails = annotation;
}
}
if (annoForMoreDetails.coordinate.latitude != mapViews.userLocation.coordinate.latitude && annoForMoreDetails.coordinate.longitude != mapViews.userLocation.coordinate.longitude) {
// try to dequeue an existing pin view first
static NSString* AnnotationIdentifier = #"AnnotationIdentifier";
MKPinAnnotationView* pinView = [[[MKPinAnnotationView alloc]
initWithAnnotation:annotation reuseIdentifier:AnnotationIdentifier] autorelease];
pinView.animatesDrop=YES;
pinView.canShowCallout=YES;
pinView.pinColor = MKPinAnnotationColorGreen;
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton setTitle:annotation.title forState:UIControlStateNormal];
[rightButton addTarget:self
action:#selector(moreDetails)
forControlEvents:UIControlEventTouchUpInside];
pinView.rightCalloutAccessoryView = rightButton;
return pinView;
}
else if (annoForMoreDetails.coordinate.latitude == mapViews.userLocation.coordinate.latitude && annoForMoreDetails.coordinate.longitude == mapViews.userLocation.coordinate.longitude) {
return nil;
}
return nil;
}
- (void)moreDetails {
annotationCalloutView.frame = CGRectMake(70, 120, 188, 218);
annotationCalloutView.alpha = 0.0;
mapView.userInteractionEnabled = NO;
annotationCalloutView.userInteractionEnabled = YES;
titleLabel.text = annoForMoreDetails.title;
titleLabel.numberOfLines = 0;
titleLabel.userInteractionEnabled = NO;
addressLabel.text = annoForMoreDetails.subtitle;
[self.view addSubview:annotationCalloutView];
[UIView beginAnimations:#"callout" context:NULL];
[UIView setAnimationDuration:0.6];
annotationCalloutView.alpha = 1.0;
[UIView commitAnimations];
}
If you see anything wrong please point it out!
Are you trying to use annoForMoreDetails to know which annotation the user tapped on so you can show more details? If that's the case, there's an easier way. Use the map view's calloutAccessoryControlTapped delegate method. It will be called when the user taps on the accessory button and it will pass the annotation view which includes the annotation as a property.
Remove the annoForMoreDetails instance variable and in viewForAnnotation, remove the for-loop that sets annoForMoreDetails (I think it ends up setting it to the last annotation every time). Remove all other references to annoForMoreDetails.
Also in viewForAnnotation, remove the addTarget line on the rightButton since you'll replace your custom moreDetails method with an implementation of calloutAccessoryControlTapped:
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view
calloutAccessoryControlTapped:(UIControl *)control
{
Annotation *annoForMoreDetails = (Annotation *)view.annotation;
//the code currently in moreDetails method goes here...
}