How do I make map balloons when a marker is being touched or tapped in iOS?
to put it simply i want my application's map feature to be able to popup a map balloon to display certain information on the location where the marker is located.
I'm using google maps since i've heard that for now it is more accurate than the Mapkit in iOS.
the image below is my objective in this question:
If you want this custom map balloons for your markers, while using google maps sdk for ios, you can use the function
- (UIView *) mapView: (GMSMapView *) mapView markerInfoWindow: (GMSMarker *) marker
This allows you to display a custom info window for a marker instead of the default infowindow. You need to design a view as shown in your picture , assign the required values and return the view in this function. Please check this earlier post to see an example of making a custom infowindow . You can adjust how the infowindow is located with respect to the marker, by setting value for the property marker.infoWindowAnchor
To create a balloon like annotation , you need to override MKMapView's method
- (MKAnnotationView *)viewForAnnotation:(id < MKAnnotation >)annotation
Like this:
- (MKAnnotationView *)viewForAnnotation:(id < MKAnnotation >)annotation{
static NSString* annotationIdentifier = #"Identifier";
MKAnnotationView *annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:annotationIdentifier];
if(annotationView)
return annotationView;
else
{
MKAnnotationView *annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:annotationIdentifier];
// here we say NO to call out, it means the default popover type view wont open when you click on an //annotation and you can override to show your custom popover
annotationView.canShowCallout = NO;
// here you need to give a ballon image
annotationView.image = [UIImage imageNamed:[NSString stringWithFormat:#"balloon.png"]];
return annotationView;
}
return nil;
}
To create the custom popover/ view that opens when you tap on an annotation , you need to override MKMapViewDelegate's method
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
Here in this method you woould need to create a Popover Controller and present it.
Related
I am implementing SKMapView in my project. There I am showing user few annotations. On clicking I am displaying a UIView with some relevant information about those coordinates. Now if user clicks anywhere else in the map area. I want to hide this marker info view. I am capturing map click using below method
-(void)mapView:(SKMapView *)mapView didTapAtCoordinate:(CLLocationCoordinate2D)coordinate.
This is how I am showing annotation in my view
//create the SKAnnotationView
SKAnnotationView *view = [[SKAnnotationView alloc] initWithView:pinView reuseIdentifier:#"viewID"];
//create the annotation
SKAnnotation *viewAnnotation = [SKAnnotation annotation];
//set the custom view
viewAnnotation.annotationType = SKAnnotationTypePurple;
viewAnnotation.annotationView = view;
viewAnnotation.identifier = index;
viewAnnotation.location = coordinates;
SKAnimationSettings *animationSettings = [SKAnimationSettings animationSettings];
[self.skMapView addAnnotation:viewAnnotation withAnimationSettings:animationSettings];
Please help and tell how can i hide this info marker view. Thanks in advance.
Following method call will catch all click events on map.
-(void)mapView:(SKMapView *)mapView didTapAtCoordinate:(CLLocationCoordinate2D)coordinate
Here I am hiding the info view.
I need to create a map view interface, which is something similar to the OLA Cabs Application in iOS. What I exactly wanna do is to fix an overlay on mapView and allow the user to scroll the map view across it. So that the overlay can be fixed at any location the User wants it to, I searched a lot about overlays, in iOS and MapKit, but couldn't make it possible. If some one can give me tips for achieving this I would be really grateful. Here is a snapshot of the screen
Here the annotation remains fixed and you can move the map view across it, So that when you stop the mapview, the overlay will be pointing to the new location, where you stopped
Click here to download demo...
Create a fix MKAnnotation and image view object to animating the location change effect in Map view.
#property (nonatomic, strong) CustomAnnotation *fixAnnotation;
#property (nonatomic, strong) UIImageView *annotationImage;
Add this code in viewDidLoad() method:
// Fix annotation
_fixAnnotation = [[CustomAnnotation alloc] initWithTitle:#"Fix annotation" subTitle:#"Location" detailURL:nil location:self.mapView.userLocation.coordinate];
[self.mapView addAnnotation:self.fixAnnotation];
// Annotation image.
CGFloat width = 64;
CGFloat height = 64;
CGFloat margiX = self.mapView.center.x - (width / 2);
CGFloat margiY = self.mapView.center.y - (height / 2) - 32;
// 32 is half size for navigationbar and status bar height to set exact location for image.
_annotationImage = [[UIImageView alloc] initWithFrame:CGRectMake(margiX, margiY, width, height)];
[self.annotationImage setImage:[UIImage imageNamed:#"mapannotation.png"]];
Now have to remove image when you drag a map view and add image which looks like an annotation. And after completion of that add annotation and remove image from Map View.
- (void)mapView:(MKMapView *)mapView regionWillChangeAnimated:(BOOL)animated {
NSLog(#"Region will changed...");
[self.mapView removeAnnotation:self.fixAnnotation];
[self.mapView addSubview:self.annotationImage];
}
- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated {
NSLog(#"Region did changed...");
[self.annotationImage removeFromSuperview];
CLLocationCoordinate2D centre = [mapView centerCoordinate];
self.fixAnnotation.coordinate = centre;
[self.mapView addAnnotation:self.fixAnnotation];
}
Its not an map annotation overlay, its a normal UIImageView which has been placed over MKMapView, and it always used to get the lat-long for the center point of the map.
Hope this would be an easy way to achieve your goal.
#Kampai has added the same code for you.
I need to create above Annotation view on MKMapView. I am able to create the custom annotation view but on the tap of annotation the view need to be opened image with that big text, I am not able to create that one. Please provide me some links or the way to do this task.
To create a custom annotation view (your replacement for the standard pin), you can just set the image property of the MKAnnotationView in the viewForAnnotation method:
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]])
{
return nil;
}
else if ([annotation isKindOfClass:[YourAnnotationClassHere class]]) // use whatever annotation class you used when creating the annotation
{
static NSString * const identifier = #"MyCustomAnnotation";
MKAnnotationView* annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if (annotationView)
{
annotationView.annotation = annotation;
}
else
{
annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation
reuseIdentifier:identifier];
}
annotationView.canShowCallout = NO; // set to YES if using customized rendition of standard callout; set to NO if creating your own callout from scratch
annotationView.image = [UIImage imageNamed:#"your-image-here.png"];
return annotationView;
}
return nil;
}
You might also want to adjust the centerOffset property to get the pin to line up precisely the way you want.
Regarding the customization of the callout, the easiest approach is to specify leftCalloutAccessoryView, rightCalloutAccessoryView and/or detailCalloutAccessoryView. This gives you a surprising degree of control, adding all sorts of images, labels, etc.
If you want to do a radical redesign of the callout, you can have viewForAnnotation set canShowCallout to NO and then respond to setSelected in your custom annotation view to show your own callout. While in Swift, see Customize MKAnnotation Callout View? for a few options for customizing the callouts.
I create a custom MKAnnoationView as follows:
- (MKAnnotationView *)mapView:(MKMapView *)theMapView viewForAnnotation:(id <MKAnnotation>)annotation
{
static NSString* AnnotationIdentifier = #"AnnotationIdentifier";
MKAnnotationView* customPinView = [[MKAnnotationView alloc]
initWithAnnotation:annotation reuseIdentifier:AnnotationIdentifier];
UIImage *pinImage = [PowerPlantAnnotation getAnnotationImageForEnergySource:((PowerPlantAnnotation*)annotation).energySource];
customPinView.image = pinImage;
return customPinView;
}
I get the image that I want positioned more or less in the right spot, but not quite. My image looks like this:
I want the bottom point of the tear drop to point to my annotation map coordinate, like the standard pin view points to the map coordinate. How can I accomplish this? Currently it looks a bit more like my image is centered on the map coordinate.
By default annotation view center is placed at the annotation coordinate. To adjust view position set its centerOffset property:
annotationView.centerOffset = CGPointMake(0.0f, -annotationViewHeight/2);
I using a custom image for my mapkit annotation. But the main problem it seems that I am running into in using a custom image, is that when zoomed out, the annotation is not in the correct point on the map, and ONLY until I zoom in all the way down, will it show the annotation point in the correct place. It seems that when I use a regular pin MKPinAnnotationView, it works normally, as with the pin being in the correct place zoomed in or out, thanks in advance for anyone that can help.
The code I have used is as follows:
- (MKAnnotationView *)mapView:(MKMapView *)aMapView viewForAnnotation:(id <MKAnnotation>)annotation
{
NSLog(#"welcome into the map view annotation");
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
MKAnnotationView *pprMapNote = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"pprMapNote"];
pprMapNote.image = [UIImage imageNamed:[NSString stringWithFormat:#"GPS_note.png"]];
pprMapNote.canShowCallout = YES;
pprMapNote.centerOffset = CGPointMake(-21,-60);
pprMapNote.calloutOffset = CGPointMake(0, 0);
//[pprMapNote addSubview:pprMapNoteImg];
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton addTarget:self
action:#selector(showDetail)
forControlEvents:UIControlEventTouchUpInside];
pprMapNote.rightCalloutAccessoryView = rightButton;
//remember to write in conditional for the different icons that should be loaded based on location
UIImageView *pprNoteLocIcon = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"loc_icon_casino.png"]];
pprMapNote.leftCalloutAccessoryView = pprNoteLocIcon;
[pprNoteLocIcon release];
return pprMapNote;
}
You are setting the centerOffset of the annotation view.
Note that this offset is not scaled with the zoom level. The further you zoom out, the further the image will appear from the coordinate.
In the default MKPinAnnotationView, the centerOffset is left at the default of 0,0 and the pin image is designed such that the bottom point of the pin is on the coordinate. So as you zoom further out, the pin image seems to grow relative to the map under it but the bottom of the pin is still pointing to the coordinate.
You need to either adjust the centerOffset based on your image or modify your image so you don't need to set centerOffset. Or just try commenting out the setting of centerOffset--maybe you don't need it.
Some other unrelated items:
You have a memory leak for the pprMapNote alloc+init (add an autorelease)
You should be using dequeueReusableAnnotationViewWithIdentifier to allow for annotation view re-use.
Instead of using addTarget to call your own method for the callout button press, it's much better to use the map view's own delegate method calloutAccessoryControlTapped
See this answer for an example of the above three points.
The Pin is drawn in a separate view, so it will not zoom based on the status of your view.
You have to set the size of your custom Pin image manually. This can easily be done using the centerOffset. For most cases it is enough to set the height of the frame to half the size of the image. The image is fully filled in the frame, so you can easily use this frame size(height).
aView.image = [UIImage imageNamed ... ];
aView.centerOffset = CGPointMake(0,-aView.frame.size.height*0.5);