I am new to xcode and i hope someone can help me with my code, and point me how to solve my issue. i've been looking at the internet, but really i couldnt figure it out.
How can i go from a map view to a detail view, bringing the "ID" of the pin with it and print it in a label.
when i click on the arrow for the annotation, my simulator crashes.
Please any ideas, how to approach it and solve it ?
( basicly i want to get the ID of the pin, and send it to a server through JSON and then move to the Detailview, but the next step )
Here is what i did so far :
My Location.m ( view controller for the map )
#import "My_Location.h"
#import "DetailViewController.h"
// ------ FUNCTION TO GET COORDINATES IN JSON FORMAT -------
- (void)retrieveData_Location
{
NSURL * url = [NSURL URLWithString:#"............./Pharmacies.php"];
NSData * data = [NSData dataWithContentsOfURL:url];
NSArray *array = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
NSMutableArray *newAnnotations = [NSMutableArray array];
CLLocationCoordinate2D location;
for (NSDictionary *dictionary in array)
{
MKPointAnnotation *newAnnotation = [[MKPointAnnotation alloc] init];
location.latitude = [dictionary[#"lat"] doubleValue];
location.longitude = [dictionary[#"lon"] doubleValue];
newAnnotation.title = dictionary[#"name"];
newAnnotation.coordinate = location;
[newAnnotations addObject:newAnnotation];
[newAnnotation release];
}
[self.MyLocation addAnnotations:newAnnotations];
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id)annotation {
if([annotation isKindOfClass:[MKUserLocation class]])
return nil;
static NSString *identifier = #"myAnnotation";
MKPinAnnotationView * annotationView = (MKPinAnnotationView*)[self.MyLocation dequeueReusableAnnotationViewWithIdentifier:identifier];
if (!annotationView)
{
annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
annotationView.pinColor = MKPinAnnotationColorPurple;
annotationView.animatesDrop = YES;
annotationView.canShowCallout = YES;
}else {
annotationView.annotation = annotation;
}
annotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
return annotationView;
}
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
[self performSegueWithIdentifier:#"Details" sender:view];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"Details"])
{
MKAnnotationView *annotationView = sender;
[segue.destinationViewController setAnnotation:annotationView.annotation];
}
}
Take_Photo is my detailviewcntroller.
And my storybaord look like this :
Mylocation View controller -> ( Segue: identifier ( Take_Photo )) -> Take_Photo view Controller
Related
I have a an array of latitude and longitude and using for loop am displaying the MKPointAnnotation on the map. I want to show a view as a popup with data when the specific MKPointAnnotation is tapped.
Here is my code -
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation {
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(userLocation.coordinate, 10000, 10000);
[self.mapView setRegion:[self.mapView regionThatFits:region] animated:YES];
[_locationManager stopUpdatingLocation];
NSArray *set = [[NSArray alloc] init];
for (int i = 0; i < _json.count; i++) {
_name = [_json[i] valueForKey:#"name"];
_class = [_json[i] valueForKey:#"class"];
set = [_json[i] valueForKey:#"set"];
if (setFreeHour.count != 0) {
for (int j=0;j<set.count;j++) {
NSDictionary *dict = [[NSDictionary alloc] init];
dict = set[j];
_lat = dict[#"latitude"];
_longi = dict[#"longitude"];
CLLocationCoordinate2D coordinate;
coordinate.latitude = [_lat doubleValue];
coordinate.longitude = [_longi doubleValue];
// Add an annotation
MKPointAnnotation *point1 = [[MKPointAnnotation alloc] init];
point1.coordinate = CLLocationCoordinate2DMake(coordinate.latitude, coordinate.longitude);
point1.title = _name;
point1.subtitle = _class;
[self.mapView addAnnotation:point1];
}
}
}
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
// Handle any custom annotations.
if ([annotation isKindOfClass:[MKPointAnnotation class]]) {
// Try to dequeue an existing pin view first.
MKAnnotationView *pinView = (MKAnnotationView*)[mapView dequeueReusableAnnotationViewWithIdentifier:#"CustomPinAnnotationView"];
if (!pinView) {
// If an existing pin view was not available, create one.
pinView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"CustomPinAnnotationView"];
pinView.canShowCallout = YES;
pinView.image = [UIImage imageNamed:#"annotation"];
pinView.calloutOffset = CGPointMake(0, 0);
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(showDetails)];
[pinView addGestureRecognizer:tap];
} else {
pinView.annotation = annotation;
}
return pinView;
}
return nil;
}
- (void)showDetails{
self.popup.hidden = NO;
}
//PS: popup is a view that contains labels. I want to pass data from MKPointAnnotation to the view
Why don't you use mapView(_:didSelect:) method instead of UITapGestureRecognizer?
(void)mapView:(MKMapView *)mapview didSelectAnnotationView:(MKAnnotationView *)view {
// 1. get data from view(MKAnnotationView)
// 2. pass data to another view
}
https://developer.apple.com/documentation/mapkit/mkmapviewdelegate/1452393-mapview
I have several annotation points. What I want to do is when I click an annotation point I want to display that data. I have a custom Annotation class with a title and an NSDictionary. The dictionary contains an image URL and ID. I want to fetch these when I click on a specific annotation.
EDIT: I know about the didSelectAnnotation, but how do I access the data?
-(void)annotations{
CLLocationCoordinate2D pinPoint;
for (NSDictionary * dict in _dataArray) {
pinPoint.latitude =[[dict valueForKey:#"lat"] doubleValue];
pinPoint.longitude = [[dict valueForKey:#"lng"] doubleValue];
_myAnnotation = [[MapViewAnnotation alloc]initWithTitle:[dict valueForKey:#"name"]andCoordinate:pinPoint andData:dict];
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:pinPoint addressDictionary:nil] ;
_destination = [[MKMapItem alloc] initWithPlacemark:placemark];
_myAnnotation.title=[dict valueForKey:#"name"];
[self.mapKit addAnnotation:_myAnnotation];
}
}
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(userLocation.coordinate, 800, 800);
[self.mapKit setRegion:[self.mapKit regionThatFits:region] animated:YES];
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(MapViewAnnotation*)annotation
{
// If it's the user location, just return nil.
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
// Handle any custom annotations.
if ([annotation isKindOfClass:[MapViewAnnotation class]])
{
// Try to dequeue an existing pin view first.
MKAnnotationView *pinView = (MKAnnotationView*)[mapView dequeueReusableAnnotationViewWithIdentifier:#"CustomPinAnnotationView"];
if (!pinView)
{
// If an existing pin view was not available, create one.
pinView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"CustomPinAnnotationView"];
pinView.canShowCallout = YES;
NSLog(#"%#",[annotation.data valueForKey:#"name"]);
pinView.image = [UIImage imageNamed:#"image"];
pinView.calloutOffset = CGPointMake(0, 32);
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
pinView.rightCalloutAccessoryView = rightButton;
} else {
pinView.annotation = annotation;
}
return pinView;
}
return nil;
}
-(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control {
MKDirectionsRequest *request = [[MKDirectionsRequest alloc] init];
[request setTransportType:MKDirectionsTransportTypeWalking];
request.source = [MKMapItem mapItemForCurrentLocation];
request.destination = _destination;
request.requestsAlternateRoutes = NO;
MKDirections *directions =
[[MKDirections alloc] initWithRequest:request];
[directions calculateDirectionsWithCompletionHandler:
^(MKDirectionsResponse *response, NSError *error) {
if (error) {
// Handle Error
} else {
[self showRoute:response];
}
}];
}
EDIT 2nd :
-(void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
MapViewAnnotation * annotation = (MapViewAnnotation *) view;
NSLog(#"%#",[annotation.data valueForKey:#"name"]);
NSURL *url =[NSURL URLWithString:[[NSUserDefaults standardUserDefaults] objectForKey:#"SPOTTD_profilePic"]];
NSData *imageData = [NSData dataWithContentsOfURL:url];
_imgMyProfile.image = [UIImage imageWithData:imageData];
}
You can use the didSelectAnnotationView method, in combination with the annotation property of the MKAnnotationView:
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
if ([view.annotation isKindOfClass:[MapViewAnnotation class]]) {
MapViewAnnotation *annotation = (MapViewAnnotation)view.annotation;
}
}
After you have safely cast the annotation to your custom type, you can access its properties like the NSDictionary.
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSString *latPoint2 = [NSString stringWithFormat:#"%.6f", view.annotation.coordinate.latitude];
NSString *longPoint2 =[NSString stringWithFormat:#"%.6f", view.annotation.coordinate.longitude];
There is one more method for annotation which is
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{}.In this method you can show your data on click of annotation.Hope this will help you. If any query let me know. Thanks
I have an application which shows something around 100 Annotations (with custom pin-images, callout accessories and annotation-images) in a MapView. While building the annotations I store a link between annotation and building so I can assign the right building and open the right segue afterwards.
In iOS 6 they get built really fast, I also enabled animation while adding them, so one pin got dropped after the other, but with apple maps in iOS7 this isn't possible anymore (?). Now building those 100 annotations takes over 1 second on my iPhone 4S and that's too long. Is there anyway to improve the code?
- (void)viewDidLoad
...
//creating annotations
annotationlink = [[NSMutableArray alloc] init];
for (int i = 0; i < data.count; i++) {
NSDictionary *dataItem = [data objectAtIndex:i];
//storing annotation in array for link
Annotation *buildingannotation = [[Annotation alloc] init];
NSNumber *index = [NSNumber numberWithInteger:i];
NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:index, indexKey, buildingannotation, annotationKey, nil];
[annotationlink addObject:dict];
buildingannotation.title = [dataItem objectForKey:#"Building"];
buildingannotation.subtitle = [dataItem objectForKey:#"Info"];
MKCoordinateRegion buildingcoordinates;
buildingcoordinates.center.latitude = [[dataItem objectForKey:#"Latitude"] floatValue];
buildingcoordinates.center.longitude = [[dataItem objectForKey:#"Longitude"] floatValue];
buildingannotation.coordinate = buildingcoordinates.center;
[self.mapView addAnnotation:buildingannotation];
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]]){
return nil;
}
MKAnnotationView *pinView = (MKAnnotationView *)
[self.mapView dequeueReusableAnnotationViewWithIdentifier:pinIdentifier];
MKAnnotationView *customAnnotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:pinIdentifier];
customAnnotationView.canShowCallout = YES;
//right button to detail view
UIButton* disclosureButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
customAnnotationView.rightCalloutAccessoryView = disclosureButton;
//left button for image
NSInteger *buildingindex = [self getIndex:annotation];
NSDictionary *dataItem = [data objectAtIndex:buildingindex];
NSString* filename = [dataItem objectForKey:#"Thumb"];
filename = [filename stringByAppendingString:#"#2x.jpg"];
NSString* resourceimagePath = [resourcePath stringByAppendingPathComponent:filename];
Image = [UIImage imageWithContentsOfFile:resourceimagePath];
UIImageView *AnnotationThumb = [[UIImageView alloc] initWithImage:Image];
AnnotationThumb.frame = CGRectMake(0, 0, 31, 31);
customAnnotationView.leftCalloutAccessoryView = AnnotationThumb;
//annotation image
customAnnotationView.image = [UIImage imageNamed:#"Annotation_white.png"];
return customAnnotationView;
return pinView;
}
the following function gets the index of the current annotation using nspredicate to filter the array with the dictionaries. the advantage of this is the fact, that i can also use it when calloutAccessoryControlTapped:
-(NSInteger*) getIndex:(Annotation*)searchannotation
{
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"%K == %#", annotationKey, searchannotation];
NSArray *filteredarray = [annotationlink filteredArrayUsingPredicate:predicate];
NSDictionary *building = [filteredarray objectAtIndex:0];
NSInteger *buildingIndex = [[building objectForKey:indexKey] integerValue];
return buildingIndex;
}
With an iPhone 4S the last pin is built 1.14 seconds after the view gets loaded.
if i search the annotation link array manually instead of using nspredicate function like this:
//left button for image
int buildingIndex;
for (int i = 0; i < annotationlink.count; i++) {
NSDictionary *annotationDict = [annotationlink objectAtIndex:i];
if ([[annotationDict objectForKey:annotationKey] isEqual:annotation]) {
buildingIndex= [[annotationDict objectForKey:indexKey] integerValue];
i = annotationlink.count;
}
}
NSDictionary *dataItem = [data objectAtIndex:buildingIndex];
the log says that the last pin is built 1.89 seconds after the viewDidLoad.
if i create the annotations in viewDidApper instead of viewDidLoad the View is shown off course immediately but the background takes some time to load so until the pins are dropped everything is gray which is also not very nice...
Thank you Anna for your suggestions! I implemented the improvements like this:
Annotation.h:
#import <MapKit/MKAnnotation.h>
#interface Annotation : NSObject <MKAnnotation> {}
#property(nonatomic, assign) CLLocationCoordinate2D coordinate;
#property(nonatomic, copy) NSString *title;
#property(nonatomic, copy) NSString *subtitle;
#property NSInteger *ID;
#end
Annotation.m:
#import "Annotation.h"
#implementation Annotation
#synthesize coordinate, title, subtitle, ID;
#end
ViewDidAppear:
//creating annotations
for (int i = 0; i < data.count; i++) {
NSDictionary *dataItem = [data objectAtIndex:i];
Annotation *buildingannotation = [[Annotation alloc] init];
buildingannotation.ID = i;
buildingannotation.title = [dataItem objectForKey:#"Building"];
buildingannotation.subtitle = [dataItem objectForKey:#"Subtitle"];
MKCoordinateRegion buildingcoordinates;
buildingcoordinates.center.latitude = [[dataItem objectForKey:#"Latitude"] floatValue];
buildingcoordinates.center.longitude = [[dataItem objectForKey:#"Longitude"] floatValue];
buildingannotation.coordinate = buildingcoordinates.center;
[self.mapView addAnnotation:buildingannotation];
}
viewForAnnotation:
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]]){
return nil;
}
MKAnnotationView *pinView = (MKAnnotationView *)
[self.mapView dequeueReusableAnnotationViewWithIdentifier:pinIdentifier];
if (pinView == nil) {
MKAnnotationView *customAnnotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:pinIdentifier];
customAnnotationView.canShowCallout = YES;
//right button to detail view
UIButton* disclosureButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
customAnnotationView.rightCalloutAccessoryView = disclosureButton;
//left button for image
Annotation *buildingAnnotation = (Annotation *)annotation;
NSInteger *buildingindex = buildingAnnotation.ID;
NSString *filePath = [thumbname objectAtIndex:buildingindex];
UIImageView *AnnotationThumb = [[UIImageView alloc] initWithImage:[UIImage imageWithContentsOfFile:filePath]];
AnnotationThumb.frame = CGRectMake(0, 0, 31, 31);
customAnnotationView.leftCalloutAccessoryView = AnnotationThumb;
//annotation image
customAnnotationView.image = [UIImage imageNamed:#"Annotation_white.png"];
return customAnnotationView;
} else {
pinView.annotation = annotation;
}
return pinView;
}
Callout:
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
Annotation *buildingAnnotation = (Annotation *)view.annotation;
selectedbuilding = buildingAnnotation.ID;
[self performSegueWithIdentifier:#"DetailViewController" sender:self];
}
Takes still some time for showing all Annotations. Is there any chance to further improve the code?
I updated the vievForAnnotation function regarding to Anna's reply and the PhotosByLocation Sample Application. It works now and I hope it's the correct way to implement the reuse...
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]]){
return nil;
}
MKAnnotationView *buildingAnnotationView = (MKAnnotationView *) [mapView dequeueReusableAnnotationViewWithIdentifier:pinIdentifier];
if (buildingAnnotationView) {
[buildingAnnotationView prepareForReuse];
} else {
buildingAnnotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:pinIdentifier];
buildingAnnotationView.canShowCallout = YES;
//right button to detail view
UIButton* disclosureButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
buildingAnnotationView.rightCalloutAccessoryView = disclosureButton;
//annotation image
buildingAnnotationView.image = [UIImage imageNamed:#"Annotation_white.png"];
}
//left button for image
Annotation *buildingAnnotation = (Annotation *)annotation;
NSInteger *buildingindex = buildingAnnotation.ID;
NSString *filePath = [thumbname objectAtIndex:buildingindex];
UIImageView *AnnotationThumb = [[UIImageView alloc] initWithImage:[UIImage imageWithContentsOfFile:filePath]];
AnnotationThumb.frame = CGRectMake(0, 0, 31, 31);
buildingAnnotationView.leftCalloutAccessoryView = AnnotationThumb;
return buildingAnnotationView;
}
I'm trying to display mapview with an array of coordinates. So, i load the latitudes and longitudes from array where those are contains. It is showing perfectly. Now, i want to display one paritcular latitude & longitude with different color pin. I've referred this answer no such different i can't see.
ViewController.m
-(void)showMap:
{
...
...
DataProvider *d = [DataProvider getInstance];
NSInteger numb = sender.view.tag;
d.colorlatitude = [[arraxy objectAtIndex:numb] objectForKey:#"lat"];
d.colorlongitude = [[arraxy objectAtIndex:numb] objectForKey:#"lng"];
[d._address removeAllObjects];
[arraxy removeObjectAtIndex:sender.view.tag];
d._address = arraxy;
MapViewController *map = [[MapViewController alloc]initWithNibName:#"MapViewController" bundle:nil];
[self.navigationController pushViewController:map animated:YES];
}
MapViewController.m
-(void)viewWillAppear:(BOOL)animated
{
DataProvider *d = [DataProvider getInstance];
[_mapView removeAnnotations:_mapView.annotations];
RegisterViewController *appDelegate = [[RegisterViewController alloc]init];
[_mapView setShowsUserLocation:YES];
[_mapView setRegion:MKCoordinateRegionMakeWithDistance([appDelegate.locationManager location].coordinate, 1000, 1000)];
[_mapView setUserTrackingMode:MKUserTrackingModeNone];
MKCoordinateRegion rregion = {{0.0,0.0},{0.0,0.0}};
rregion.center.latitude = [d.colorlatitude floatValue];
rregion.center.longitude = [d.colorlongitude floatValue];
rregion.span.latitudeDelta=0.001f;
rregion.span.longitudeDelta=0.001f;
[_mapView setRegion:rregion];
MapviewAnnotations *add = [[MapviewAnnotations alloc]init];
add.coordinate = rregion.center;
[_mapView addAnnotation:add];
if (d._address)
{
for (int i=0; i<[d._address count]; i++)
{
NSDictionary *dic=[d._address objectAtIndex:i];
MKCoordinateRegion region={{0.0,0.0},{0.0,0.0}};
region.center.latitude=[[dic objectForKey:#"lat"]floatValue];
region.center.longitude=[[dic objectForKey:#"lng"]floatValue];
region.span.latitudeDelta=0.001f;
region.span.longitudeDelta=0.001f;
[_mapView setRegion:region];
MapviewAnnotations *ann=[[MapviewAnnotations alloc]init];
ann.coordinate=region.center;
[_mapView addAnnotation:ann];
}
}
[super viewWillAppear:YES];
}
and my MKMapView's delegate method is
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if (![annotation isKindOfClass:[MapviewAnnotations class]])
{
return nil;
}
static NSString *reuseId = #"currentloc";
MKPinAnnotationView *annView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:reuseId];
if (annView == nil)
{
annView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:reuseId];
annView.animatesDrop = NO;
annView.canShowCallout = YES;
annView.calloutOffset = CGPointMake(-5, 5);
}
else
{
annView.annotation = annotation;
}
DataProvider *mvAnn = [DataProvider getInstance];
if (mvAnn.colorlatitude) // here i'm checking the condition.
{
annView.pinColor = MKPinAnnotationColorGreen;
}
else
{
annView.pinColor = MKPinAnnotationColorRed;
}
return annView;
}
I'm just writting the condition if the co-ordinate is there i've to plot the green color pin to that particular coordinate only. How to achieve this?
The difference between your code and the one Hinata has referred you to is that the if statement in the other code uses a value (yesno) on the annotation it is currently drawing to decide what colour to use. You are getting a value from DataProvider but not telling it which annotation you are drawing, so the instance it gives you is just what ever the instance method feels like returning at the time the map is asking for the pin. You need to tell it what you're drawing for it to decide what to put into colorlatitude
I've done this through some flags like below inside of my - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
MapviewAnnotations *mvAnn = (MapviewAnnotations *)annotation;
if (mvAnn.flag == 1)
{
annView.pinColor = MKPinAnnotationColorGreen;
}
else if (mvAnn.flag == 10)
{
annView.pinColor = MKPinAnnotationColorPurple;
}
else
{
annView.pinColor = MKPinAnnotationColorRed;
}
In my viewWillAppear i received the coordinates from DataProvider and assigned with separate MapviewAnnotations with flags and differentiate it with three type of pins simply.
Cheers!
I have a MapView, the annotations comes from a property list.
Now I would like to see more data in the detail view.
Unfortunately I do not how to program the Segue, so that data can be displayed.
I hope you understand what I mean. My english is not so good ...
I know that there is missing some in the method prepareforSegue.
I am using storyboard.
In advance thank you for your help ...
regards
#import "MapViewNewController.h"
#import "MapViewAnnotation.h"
#import "SetCardController.h"
#interface MapViewNewController ()
#end
#implementation MapViewNewController
#synthesize recipesDictionary = _recipesDictionary;
#synthesize mapView;
#synthesize locationManager;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.mapView.delegate = self;
[self.mapView setShowsUserLocation:YES];
MKCoordinateRegion newRegion ;
newRegion.center.latitude = 50.080635;
newRegion.center.longitude = 8.518717;
newRegion.span.latitudeDelta = 15.5;
newRegion.span.longitudeDelta = 15.5;
[mapView setRegion:newRegion animated:YES];
NSString *path = [[NSBundle mainBundle] pathForResource:#"Rezepte" ofType:#"plist"];
NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:path];
NSArray *anns = [dict objectForKey:#"myRecipes"];
for(int i = 0; i < [anns count]; i++) {
float realLatitude = [[[anns objectAtIndex:i] objectForKey:#"latitude"] floatValue];
float realLongitude = [[[anns objectAtIndex:i] objectForKey:#"longitude"] floatValue];
MapViewAnnotation *myAnnotation = [[MapViewAnnotation alloc] init];
CLLocationCoordinate2D theCoordinate;
theCoordinate.latitude = realLatitude;
theCoordinate.longitude = realLongitude;
myAnnotation.coordinate = theCoordinate;
myAnnotation.title = [[anns objectAtIndex:i] objectForKey:#"blogname"];
myAnnotation.subtitle = [[anns objectAtIndex:i] objectForKey:#"blogger"];
[mapView addAnnotation:myAnnotation];
}
}
-(MKAnnotationView *)mapView:(MKMapView *)view viewForAnnotation:(id<MKAnnotation>)annotation {
MKPinAnnotationView *pin = nil;
if ([annotation isKindOfClass:[MapViewAnnotation class]]) {
NSString *pinIdentifier = #"myPin";
pin = (MKPinAnnotationView*)[view dequeueReusableAnnotationViewWithIdentifier:pinIdentifier];
if (!pin) {
pin = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:pinIdentifier];
pin.image = [UIImage imageNamed:#"pin2.png"];
pin.canShowCallout = YES;
pin.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
}
}
return pin;
}
//if Button pressed
-(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control{
[self performSegueWithIdentifier:#"showPinDetails" sender:self];
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"showPinDetails"]) {
// SetCardController *scc = [segue destinationViewController];
}
}
When you performSegueWithIdentifier:sender from a callout inside annotationView:view, the sender can be the view.annotation property, which uniquely identifies the callout that the user just tapped.
I believe you didn't set the identifier for the Segue in Interface Builder. I tried your code and it worked for me (Xcode 4.4 iOS 5.1 SDK)
The above two answers help, however don't help you identify the unique pins details that I am assuming are part of your p-list.
All Views inherit a the property of a Tag. It can used this to hold a pin index (or key)and therefore pass this to the destination View Controller to uniquely identify the data you hold.
As your button in the call-out view inherits from view you can tag it, and pass the index when its active in the method didselectAnnotationView. The if statement used de-selects the User location pin.
-(void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
if (![(PointAnnotation *)view.annotation isKindOfClass:[MKUserLocation class]])
{
PointAnnotation *myAnn = (PointAnnotation *)view.annotation;
detailButton.tag = myAnn.pinIndex;
NSLog (#"Pinindex = %d", myAnn.pinIndex);
}
}
The detailButton.tag can now be used as a parameter in segue selection.
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Post data to destination VC
if ([[segue identifier] isEqualToString:#"clubsToDetail"])
{
ClubsMasterData *current = [[ClubsMasterxmlParser ClubsMasterDatas] objectAtIndex:detailButton.tag];
ClubsDetailViewController *DVC = [[ClubsDetailViewController alloc] init];
DVC = [segue destinationViewController];
DVC.linkURL = current.linkURL;
DVC.distance = current.distance;
}
}
Here I indexed an Array rather than a Plist, but the principal is the same.