In the last version of Xcode, set region worked fine, now in 3.2.3 it doesn't snap to your specified region?
After View did load...
[mapView setMapType:MKMapTypeHybrid];
[mapView setZoomEnabled:YES];
[mapView setScrollEnabled:YES];
MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
region.center.latitude = 41.902245099708516;
region.center.longitude = 12.457906007766724;
region.span.longitudeDelta = 0.04f;
region.span.latitudeDelta = 0.04f;
[mapView setRegion:region animated:YES];
[mapView setDelegate:self];
This is the code that worked fine, now it doesn't snap to the location denoted above, it just shows the world map.
Any help greatly appreciated.
I've done it lots in 3.2.3 and iOS4. I promise it works.
I like MKCoordinateRegionMakeWithDistance().
CLLocationCoordinate2d coord = { 41.902245099708516, 12.457906007766724 };
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(coord, 1000, 1000);
[mapView setRegion:[mapView regionThatFits:region] animated:YES];
That "1000, 1000" in the second and third arg are the latitudinal and longitudinal meters of the range component of the region. Passing the region through the mapview's -regionThatFits: method is just good practice.
Related
So I have set my app to search for the user's location upon pressing on a button.
-(IBAction)getLocation {
mapview.showsUserLocation = YES;}
Then I have set a Map Annotation as well to a certain location upon loading of the map view using this
- (void)viewDidLoad{
[super viewDidLoad];
// Do any additional setup after loading the view.
[mapview setMapType:MKMapTypeStandard];
[mapview setZoomEnabled:YES];
[mapview setScrollEnabled:YES];
MKCoordinateRegion region = { {0.0, 0.0 }, {0.0, 0.0 } };
region.center.latitude = 123;
region.center.longitude = 123;
region.span.longitudeDelta = 0.01f;
region.span.latitudeDelta = 0.01f;
[mapview setRegion:region animated:YES];
NewClass *ann = [[NewClass alloc] init];
ann.title = #"Place to go to";
ann.subtitle = #"subtitle";
ann.coordinate = region.center;
[mapview addAnnotation:ann];
}
Is it possible to be able to put a "Directions to Here" button to my annotation using MapKit? Any help would be awesome! Thanks!
To add the callout accessory, you have to follow the instruction from Anna Karenina.
To draw the route itself, you have to first obtain the route, there are plenty of excellent APIs that will give you the route between two given points, even allowing you to set params like if the kind of routes you want to include. Google Directions API is pretty impressive on that regard. You should check it.
Then you have to draw the route itself with MKPolyline. You can check a toy app i put together a few months ago to show how to do this.
I am using a mapkit I found on Github to plot directions, but the problem is when the mapview loads it shows US at startup and then moves to the location where route is plotted. Is there any way to show Australia instead at the startup?
Thanks
I'm using this to initialize the Map View, and it works perfectly for me :
CLLocationCoordinate2D coord = {.latitude = XX.XXX, .longitude = X.XXX};
MKCoordinateSpan span = {.latitudeDelta = X.XX, .longitudeDelta = X.XX};
MKCoordinateRegion region = {coord, span};
Then, use the setRegion method for your MKMapView
Is it that you're looking for?
I do the following:
CLLocationCoordinate2D maxCoord = {-90.0f, -180.0f};
CLLocationCoordinate2D minCoord = {90.0f, 180.0f};
MKCoordinateRegion region = {{0.0f, 0.0f}, {0.0f, 0.0f}};
region.center.longitude = (minCoord.longitude + maxCoord.longitude) / 2.0;
region.center.latitude = (minCoord.latitude + maxCoord.latitude) / 2.0;
region.span.longitudeDelta = (maxCoord.longitude - minCoord.longitude);
region.span.latitudeDelta = (maxCoord.latitude - minCoord.latitude);
[self.mainMapView setRegion:region animated:YES];
You can adjust the maxCoord and minCoord inputs to the values you'd like for Australia.
I am currently working on an application involving mapkit. I would like to add a reset button on the view which resets the view to its default view when you open the program, or better still, the mapkit resets itself when you open and close the app.
The code i have used to set the initial region is as follows:
MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
region.center.latitude = 54.049929;
region.center.longitude = -4.54834;
region.span.longitudeDelta = 4.5;
region.span.latitudeDelta = 4.5;
[mapView setRegion:region animated:YES];
Any help would be greatly appreciated.
Store the Location of your map
In .h file
CLLocationCoordinate2D location;
When setting initial Region
location.latitude = 54.049929;
location.longitude = -4.54834;
In your Reset Button
MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
region.center.latitude = location.latitude
region.center.longitude = location.longitude;
region.span.longitudeDelta = 4.5;
region.span.latitudeDelta = 4.5;
[mapView setRegion:region animated:YES];
So, are you trying to figure out how to actually add the button to the view and link it to a method in the code?
The code itself within the method would just be the same as you used for your initial setup, as indicated by BuildSucceded above ...
You should just add a button to the toolbar/navbar(if you have one), and link it to a "resetMap()" method.
I'm using map kit and showing user's location using "showsUserLocation"
I"m using following code to zoom to user's location, but not zooming. Its zooming to some location in Africa, though the user location on map is showing correct.
MKCoordinateRegion newRegion;
MKUserLocation* usrLocation = mapView.userLocation;
newRegion.center.latitude = usrLocation.location.coordinate.latitude;
newRegion.center.longitude = usrLocation.location.coordinate.longitude;
newRegion.span.latitudeDelta = 20.0;
newRegion.span.longitudeDelta = 28.0;
[self.mapView setRegion:newRegion animated:YES];
Why is user's location correctly showing and not zooming properly. Can some one correct me please?
mapView.userLocation is set to a location off the coast of Africa (0,0) when first instantiated. As a result, I do something like the following, which causes the zoom to occur when the annotation appears. Of course, this is just an example:
- (void)mapView:(MKMapView *)mv didAddAnnotationViews:(NSArray *)views {
for(MKAnnotationView *annotationView in views) {
if(annotationView.annotation == mv.userLocation) {
MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.1;
span.longitudeDelta=0.1;
CLLocationCoordinate2D location=mv.userLocation.coordinate;
region.span=span;
region.center=location;
[mv setRegion:region animated:TRUE];
[mv regionThatFits:region];
}
}
}
you can try:
mapView.userTrackingMode=YES;
mapView.userTrackingMode=NO;
UserTrackingMode will zoom to user Location.
Have you verified that the location returned by mapView.userLocation isn't at 0, 0?
how can I zoom the map on my userLocation automatically in my app?
I have the following code to zomm in the map but i must zoom on the userLocation and the following code zooms always to africa?
MKCoordinateRegion zoomIn = mapView.region;
zoomIn.span.latitudeDelta *= 0.2;
zoomIn.span.longitudeDelta *= 0.2;
zoomIn.center.latitude = mapView.userLocation.location.coordinate.latitude;
zoomIn.center.longitude = mapView.userLocation.location.coordinate.longitude;
[mapView setRegion:zoomIn animated:YES];
OK i solved the problem, with the following delegate Method:
-(void)mapView:(MKMapView *)mv didAddAnnotationViews:(NSArray *)views{
for(MKAnnotationView *annotationView in views) {
if(annotationView.annotation == mv.userLocation){
MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.9;
span.longitudeDelta=0.9;
CLLocationCoordinate2D location =mv.userLocation.coordinate;
location = mv.userLocation.location.coordinate;
region.span = span;
region.center = location;
[mv setRegion:region animated:TRUE];
[mv regionThatFits:region];
}
}
}
thanks alot mate, this helped me greatly. Really wanted to vote but cant because of my rep level.
I also found that using:
mapView.userLocation.location.coordinate.latitude;
always zoomed me to africa, and never centered me onto my current location.
But by using the delegate method:
-(void)mapView:(MKMapView *)myMapView didAddAnnotationViews:(NSArray *)views {
I was able to solve this successfully. What I discovered is that when using mapView.userLocation.location.coordinate.latitude; in the viewDidLoad method wasn't triggering the correct user coords on startup of the view, hence it was displaying the wrong coords.