how to get permission for map and zoom to user location? - ios

Question

I tired to get indexpath of my custom annotation ,
I use this code for get my indexpath
NSUInteger index =[mapView.annotations indexOfObject:view.annotation];
its not really working because in my map, i got right lat and lang but not get the true data of pinview
pusingpalagw is my subclass
here is my code:
-(void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
// [(UIImageView *)view.leftCalloutAccessoryView setImageWithURL:[NSURL URLWithString:self.content.MERCHANT_IMAGE] usingActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
//if ([view.annotation isKindOfClass:[pusingpalagw class]]) {
// pusingpalagw *annot = view.annotation;
//NSInteger index = [self.arrayOfAnnotations indexOfObject:annot];
NSUInteger index =[mapView.annotations indexOfObject:view.annotation];
if (!self.content) {
pusingpalagw *calloutView = [[pusingpalagw alloc] initWithFrame:CGRectMake(0.0, 0.0, 242.0, 57.0)];
self.content12 = [self.listContent objectAtIndex:index];
calloutView.titleLabel.text = self.content12.MERCHANT_NAME;
calloutView.subtitleLabel.text = self.content12.MERCHANT_NAME;
//UIView *rating2 = (UIView*)[cell2 viewWithTag:110];
_starRating = [[EDStarRating alloc]initWithFrame:CGRectMake(calloutView.viewRating.frame.origin.x-15, calloutView.viewRating.frame.origin.y,80,20)];
_starRating.backgroundColor = [UIColor clearColor];
self.starRating.starImage = [UIImage imageNamed:#"kuningstarkosong"];
self.starRating.starHighlightedImage = [UIImage imageNamed:#"kuningstarfull"] ;
_starRating.maxRating = 5.0;
_starRating.delegate = self;
_starRating.horizontalMargin = 15.0;
_starRating.editable=NO;
_starRating.rating= [self.content12.MERCHANT_RATTING floatValue];
_starRating.displayMode=EDStarRatingDisplayHalf;
[_starRating setNeedsDisplay];
[calloutView.viewRating addSubview:_starRating];
NSLog(#"keluarbintang%#",_starRating);
NSURL *url = [NSURL URLWithString:self.content12.MERCHANT_IMAGE];
NSData *imageData = [NSData dataWithContentsOfURL:url];
UIImage *abs = [UIImage imageWithData:imageData];
[calloutView.imageMap setImage:abs];
//[calloutView.buttonDetail setTitle: #"Post" forState: UIControlStateNormal];
UIButton *buttonAja = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, calloutView.frame.size.width, calloutView.frame.size.height)];
[buttonAja setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
//[buttonAja setTitle: #"Post" forState: UIControlStateNormal];
buttonAja.titleLabel.font = [UIFont systemFontOfSize:13.0];
[buttonAja addTarget:self action:#selector(goDetail:) forControlEvents:UIControlEventTouchUpInside];
[calloutView addSubview:buttonAja];
calloutView.center = CGPointMake(CGRectGetWidth(view.bounds) / 2.0, 0.0);
[view addSubview:calloutView];
}

Answer 1

//To get permission
if([CLLocationManager locationServicesEnabled]){
NSLog(#"Location Services Enabled");
if([CLLocationManager authorizationStatus]==kCLAuthorizationStatusDenied){
alert = [[UIAlertView alloc] initWithTitle:#"App Permission Denied"
message:#"To re-enable, please go to Settings and turn on Location Service for this app."
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
}
}
//To set user Location
- (void)viewDidLoad
{
[super viewDidLoad];
self.mapView.showsUserLocation=YES;
self.mapView.delegate = self;
[self.mapView setUserTrackingMode:MKUserTrackingModeFollow animated:YES];
}
...
-(void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
MKCoordinateRegion mapRegion;
mapRegion.center = mapView.userLocation.coordinate;
mapRegion.span.latitudeDelta = 0.2;
mapRegion.span.longitudeDelta = 0.2;
[mapView setRegion:mapRegion animated: YES];
}

Answer 2

Permission for IOS 8 Or Later :-
#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
if ([CLLocationManager locationServicesEnabled] )
{
if (self.locationManager == nil )
{
self.locationManager.delegate = (id)self;
self.locationManager = [[CLLocationManager alloc] init];
#ifdef __IPHONE_8_0
if(IS_OS_8_OR_LATER)
{
// Use one or the other, not both. Depending on what you put in info.plist
[self.locationManager requestWhenInUseAuthorization];
[self.locationManager requestAlwaysAuthorization];
}
#endif
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.distanceFilter = kDistanceFilter; //kCLDistanceFilterNone// kDistanceFilter;
}
[self.locationManager startUpdatingLocation];
self.mapViewForPlace.showsUserLocation = YES;
[self.locationManager setDelegate:self];
NSLog(#"Location Title Is: %#", self.mapViewForPlace.userLocation.title);
}
Add info.plist NSLocationWhenInUseUsageDescription type of string.
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
#ifdef __IPHONE_8_0
if(IS_OS_8_OR_LATER) {
// Use one or the other, not both. Depending on what you put in info.plist
[self.locationManager requestWhenInUseAuthorization];
[self.locationManager requestAlwaysAuthorization];
}
#endif
self.mapViewForPlace.showsUserLocation = YES;
self.currentLocation = [locations lastObject];
// here we get the current location
NSLog(#"Current Locations : %#",self.currentLocation);
// CLLocation* location = (CLLocation*)locations.lastObject;
// Use Apple's Geocoder to figure the name of the place
CLGeocoder* geoCoder = [[CLGeocoder alloc] init];
[geoCoder reverseGeocodeLocation:self.currentLocation completionHandler: ^(NSArray* placemarks, NSError* error) {
if (error != nil) {
NSLog(#"Error in geo coder: %#", error);
}
else {
if (placemarks.count == 0) {
NSLog(#"The address couldn't be found");
}
else {
// Get nearby address
CLPlacemark* placemark = placemarks[0];
// Get the string address and store it
NSString* locatedAt = [[placemark.addressDictionary valueForKey:#"FormattedAddressLines"] componentsJoinedByString:#", "];
//location.name = locatedAt;
currentLocationNameIs=locatedAt;
NSLog(#"The address is: %#", locatedAt);
}
}
}];
}
- (void) locationManager:(CLLocationManager *) manager didUpdateToLocation:(CLLocation *) newLocation fromLocation:(CLLocation *) oldLocation
{
self.currentLocation = newLocation;
self.mapViewForPlace.showsUserLocation = YES;
NSLog(#"New location Cordinate : %f %f",self.mapViewForPlace.userLocation.coordinate.latitude,self.mapViewForPlace.userLocation.coordinate.longitude);
[self.locationManager stopUpdatingLocation];
}
- (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.
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.animatesDrop = YES;
pinView.canShowCallout = YES;
pinView.image = [UIImage imageNamed:#"facebook30.png"];
pinView.calloutOffset = CGPointMake(0, 32);
// Add a detail disclosure button to the callout.
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
pinView.rightCalloutAccessoryView = rightButton;
// Add an image to the left callout.
UIImageView *iconView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"facebook30.png"]];
pinView.leftCalloutAccessoryView = iconView;
} else {
pinView.annotation = annotation;
}
return pinView;
}
return nil;
}