I installed XCODE 6 the version form developer.apple (I think is the final one) and Im working my projects there (iOS 7 projects) but obviously brings iOS 8 SDK I really don't know if this affects the project.
I have a mapview and I want to show the user location but it's impossible!
Code:
#property (nonatomic, strong) CLLocationManager *manager;
- (void)viewDidLoad {
[super viewDidLoad];
[self.manager requestAlwaysAuthorization];
[self.manager requestWhenInUseAuthorization];
[self.mapview setDelegate:self];
self.mapview.showsUserLocation = YES;
[self.mapview setCenterCoordinate:self.mapview.userLocation.location.coordinate animated:YES];
}
I don't get the "App whants to use your current location...", The mapview shows some place in Africa without pin or anything.
You must init/alloc the CLLocationManager *manager
something like this:
// Create the core location manager object
_locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
// for iOS 8, specific user level permission is required,
// "when-in-use" authorization grants access to the user's location
//
// important: be sure to include NSLocationWhenInUseUsageDescription along with its
// explanation string in your Info.plist or startUpdatingLocation will not work.
//
if ([self.locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]) {
[self.locationManager requestWhenInUseAuthorization];
}
[self.locationManager startUpdatingLocation];
check Apple example https://developer.apple.com/library/prerelease/ios/samplecode/LocateMe/Introduction/Intro.html#//apple_ref/doc/uid/DTS40007801
Related
I've used location services in many apps, but this new app has a problem on iOS 8.0 and up. I am not getting the notification on the app's first load prompting to allow location services. However, on my iOS 7.1 device I get the prompt.
Here is what I have in my appDelegate in didFinishLaunchingWithOptions:
self.locationManager = [CLLocationManager new];
[self.locationManager setDelegate:self];
if ([self.locationManager respondsToSelector:#selector(requestAlwaysAuthorization)]) {
[self.locationManager requestAlwaysAuthorization];
}
[self initializeRegionMonitoring];
And the initializeRegionMonitoring method is:
-(void) initializeRegionMonitoring {
NSLog(#"initialize region monitoring");
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
// radius of region being monitored
CLLocationDistance radius = 25; // 20 metre sensitivity
CLLocationCoordinate2D coordinate;
coordinate.latitude = 25.886099;
coordinate.longitude = -80.165124;
self.someRegion = [[CLCircularRegion alloc] initWithCenter:coordinate radius:radius identifier:#"Qualex"];
self.someRegion.notifyOnEntry = YES;
self.someRegion.notifyOnExit = YES;
[self.locationManager startMonitoringForRegion:self.someRegion];
// notify changes when the device has moved x meters
self.locationManager.distanceFilter = 20; // or set to 20 meters
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.activityType = CLActivityTypeAutomotiveNavigation;
[self.locationManager startUpdatingLocation];
[self.locationManager startMonitoringSignificantLocationChanges];
}
I also have set the NSLocationAlwaysUsageDescription in my info.plist, so there must be something I've forgotten, right? Thanks for the help!
Edit:
I'm also registering for remote notifications at the same time, that's never been a problem before but I thought it might be some useful extra information.
Also, when terminated the app then re-run the notification to allow location services pops up, but goes away instantly. Just flashes on the screen. I have no idea why it would dismiss without clicking one of the options on the alert.
Before iOS 8, you could request location permission simply by instantiating a CLLocationManager object and attempting to start location tracking. On iOS 8 and above, this does not present a permission prompt; you must request authorization manually with either the requestAlwaysAuthorization or requestWhenInUseAuthorization methods.
That being said, on iOS 8, if you call either of those methods, then the CLLocationManager instance on which you called it is released, the location permission prompt will dismiss itself. What's happening here is that you are creating a location manager, requesting permission (iOS starts to try to present the permission dialog), calling initializeRegionMonitoring, and setting the self.locationManager property to a new location manager instance. This causes the first one you created to get released by ARC, so the permission prompt is dismissed before it even gets a chance to appear.
Removing the line self.locationManager = [[CLLocationManager alloc] init]; in your initializeRegionMonitoring method should fix the issue.
I am using the below code for displaying the user current location in iOS 8.4.
- (void)viewDidLoad
{
[super viewDidLoad];
[locationManager requestAlwaysAuthorization];
self.mapView.delegate = self;
[self.mapView setShowsUserLocation:YES];
locationManager = [[CLLocationManager alloc] init];
locationManager setDelegate:self];
[locationManager setDistanceFilter:kCLDistanceFilterNone];
[locationManager setDesiredAccuracy:kCLLocationAccuracyBest];
}
But it is not working properly. It displays the following error:
Trying to start MapKit location updates without prompting for location
authorization. Must call -[CLLocationManager
requestWhenInUseAuthorization] or -[CLLocationManager
requestAlwaysAuthorization] first.
For get user current location you need add one key as string in your project info.plist file.
Key is :
NSLocationAlwaysUsageDescription
I want to get the latitude and longitude of the user and display it on the Apple Watch.
I have already included the core location framework in my Watchkit Extension.
When I run the program all I get for the lat and long is 0.0 and 0.0
I tested the same method in a class on the iPhone and it worked, and gave me the appropriate coordinates. What am I doing wrong?
The .h file:
#import <WatchKit/WatchKit.h>
#import <Foundation/Foundation.h>
#import <CoreLocation/CoreLocation.h>
#interface InterfaceController : WKInterfaceController
#end
The .m file:
#import "InterfaceController.h"
#interface InterfaceController()
#end
#implementation InterfaceController
- (void)awakeWithContext:(id)context {
[super awakeWithContext:context];
// Configure interface objects here.
}
- (void)willActivate {
// This method is called when watch view controller is about to be visible to user
[super willActivate];
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
if ([self.locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]) {
[self.locationManager requestWhenInUseAuthorization];
}
[self.locationManager startUpdatingLocation];
}
- (void)didDeactivate {
// This method is called when watch view controller is no longer visible
[super didDeactivate];
}
- (IBAction)showLocation {
NSString * geoLoc = [NSString stringWithFormat:#"latitude: %f longitude: %f", self.locationManager.location.coordinate.latitude, self.locationManager.location.coordinate.longitude];
NSLog(geoLoc);
}
#end
Before you can get any location updates to your watch app extension you will need to authorize location updates in your iPhone app. If you haven't authorized location updates in your iPhone app, then your watch extension will not get any location updates. Also, I am pretty sure you need to set the permission to always allow for location updates [CLLocationManager requestAlwaysAuthorization]. I don't think it will work if you use [CLLocationManager requestWhenInUseAuthorization], though I am not 100% sure about the permissions.
In Xcode, you want use the Debug menu to simulate a location that's either pre-set or use a GPX file as the location source.
In the CLLocationMananager documentation, the location property states
The value of this property is nil if no location data has ever been retrieved.
That means that you need to call [self.locationManager startUpdatingLocation] in order to get a valid location. But there a could things you need to do before that will work.
First of all you will need to request authorization by calling [self.locationManager requestAlwaysAuthorization].
When authorization is approved or declined, the delegate method locationManager:didChangeAuthorizationStatus: will be called.
If the authorization status is kCLAuthorizationStatusAuthorizedAlways than you can call [self.locationManager startUpdatingLocation].
Then anytime the location is updated, the delegate method
locationManager:didUpdateLocations: will be called so you can update your UI with the new location.
You are not supposed to request location data within a WatchKit Extension.
From Apple Watch Human Interface Guidelines:
“Avoid using technologies that request user permission, like Core
Location. Using the technology from your WatchKit extension could
involve displaying an unexpected prompt on the user’s iPhone the first
time you make the request. Worse, it could happen at a time when the
iPhone is in the user’s pocket and not visible.”
I am using this code
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
[locationManager setDesiredAccuracy:kCLLocationAccuracyBest];
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8)
{
[locationManager requestAlwaysAuthorization];
[locationManager requestWhenInUseAuthorization];
}
[locationManager startUpdatingLocation];
and to display in wkinterfaceMap i use this code
CLLocationCoordinate2D mapLocation = CLLocationCoordinate2DMake([latitude floatValue],[longitude floatValue]);
//
MKCoordinateSpan coordinateSpan = MKCoordinateSpanMake(1, 1);
[self.mapkit addAnnotation:mapLocation withPinColor: WKInterfaceMapPinColorPurple];
[self.mapkit setRegion:(MKCoordinateRegionMake(mapLocation, coordinateSpan))];
I am trying to get authorization from user before fetching his location. I am using this code for that:
self.locationManager = [[CLLocationManager alloc] init];
[self.locationManager setDelegate:self];
if ([self.locationManager respondsToSelector:#selector(requestAlwaysAuthorization)]) {
// iOS8+
// Sending a message to avoid compile time error
[self.locationManager requestAlwaysAuthorization];
}
[self showIndicatorView];
self.getCityService = [[GetCitiesService alloc] initServiceWithDelegate:self isLocalCall:NO];
[self.getCityService fetchCities];
I see the alert on screen but before I allow it or not, it disappear form screen and app is not authorized.
I want my code to stop until user gives permission.
Apparently in iOS 8 SDK, requestAlwaysAuthorization (for background location) or requestWhenInUseAuthorization (location only when foreground) call on CLLocationManager is needed before starting location updates.
There also needs to be NSLocationAlwaysUsageDescription or NSLocationWhenInUseUsageDescription key in Info.plist with a message to be displayed in the prompt. Adding these solved my problem.
Hope it helps someone else.
EDIT: For more extensive information, have a look at: http://nevan.net/2014/09/core-location-manager-changes-in-ios-8/
You code looks really weird, since you seem to be calling the requestAlwaysAuthorization twice. Once on self.locationManager and once via the sendAction.
You code should look like:
self.locationManager = [[CLLocationManager alloc] init];
[self.locationManager setDelegate:self];
if ([self.locationManager respondsToSelector:#selector(requestAlwaysAuthorization)]) {
// iOS8+
// Sending a message to avoid compile time error
[self.locationManager requestAlwaysAuthorization];
}
I am trying to make use of the options within iOS simulator : debug->freeway drive/ city run in order to simulate the location updates.
In my code I am using CLLocationManager for getting location updates with following code:
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
[locationManager setDesiredAccuracy:kCLLocationAccuracyNearestTenMeters];
[locationManager setDistanceFilter:20];
}
-(void)viewWillAppear:(BOOL)animated {
[locationManager startUpdatingLocation];
}
-(void)locationManager:(CLLocationManager *)lm didUpdateLocations:(NSArray *)locations{
CLLocation *location = [locations lastObject];
NSLog(#"Location returned: %f, %f Accuracy: %f", location.coordinate.latitude, location.coordinate.longitude, location.horizontalAccuracy);
}
I am never getting a callback on the delegate for location updates, while my app is in background and i am selecting the option in simulator.
I have provided my app the background mode for location updates. Please let me know how exactly to use these features or if i am missing anything here.
I finally sorted out the problem. The simulator's options are working perfectly fine but it was the implementation of CLLocation which was the problem.
On iOS 8 the location update code will not work unless :
You add NSLocationWhenInUseUsageDescription & NSLocationAlwaysUsageDescription to the plist with some string values that will be prompted to user.
You need to add ask user's permission for getting the location codes to work:
[self.locationManager requestWhenInUseAuthorization]
[self.locationManager requestAlwaysAuthorization]
Taken from this post.