I'm asking this because I'm a bit confused. I did set NSLocationAlwaysUsageDescription in my Info.plist and this is the code I'm running:
CLLocationManager *locMan = [[CLLocationManager alloc] init];
locMan.delegate = self;
if ([CLLocationManager authorizationStatus] != kCLAuthorizationStatusAuthorizedAlways)
{
[locMan requestAlwaysAuthorization];
}
[locMan startUpdatingLocation];
I set a breakpoint and verified that this does indeed get called, but I am not alerted in the app. I check in my privacy settings and saw the app had an entry with the two options: None and Always, with neither checked. I tried to uninstall, clean, and reinstall, but still is not working. Any ideas?
EDIT:
I moved the above block from viewDidLoad into viewDidAppear: and now the alert comes up and disappears half a second later
I solved my issue. It's a retain issue. I was declaring my CLLocationManager locally, so when it reached the end of my method, it would didn't exist anymore, which explains why it couldn't ask for permission. I promoted it to be a property and now all works well
You need to add this line at the end of your code
[self.locationManager startUpdatingLocation];
What about if you try this:
CLLocationManager *locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
if ([locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]) {
[locationManager requestWhenInUseAuthorization];
}
[locationManager startUpdatingLocation];
Sorry, missread your post. Maybe try this:
CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
if (status == kCLAuthorizationStatusAuthorizedWhenInUse || status == kCLAuthorizationStatusDenied) {
// Show alert or something
}
else if (status == kCLAuthorizationStatusNotDetermined) {
[self.locationManager requestAlwaysAuthorization];
}
More can be read here: Core Location Manager Changes in iOS 8
Related
I'm working on permissions for location, problem is next:
User turned off location services from privacy and installed the app. I have line of code that is asking to enable location services: if (![CLLocationManager locationServicesEnabled] || [CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied)... and this is working pretty fine. Problem is that app don't ask for allowing app to use location, then it asks the second time. Code for asking for permission:
if ([self.locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]) {
[self.locationManager requestWhenInUseAuthorization];
}
NOTE: Everything works fine if locations services enabled, it asks for approval first time.
EDIT: Full code for permissions:
-(void)setupPermissions
{
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
if (![CLLocationManager locationServicesEnabled] || [CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied) {
}
if ([self.locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]) {
[self.locationManager requestWhenInUseAuthorization];
}
[self.locationManager startUpdatingLocation];
}
Your code makes no sense. You have this:
if (something) {
}
if (somethingelse) {
[self.locationManager requestWhenInUseAuthorization];
}
So you have one if that is empty, and another if that always runs regardless of what the first if does. Perhaps you meant to use else if for the second condition?
(And keep in mind that, as you've already been told, calling requestWhenInUseAuthorization is pointless unless the status is NotDetermined.)
The only time you can get iOS to request user permissions is when the authorization status is NotDetermined.
If a user has denied your app, the only way you can get them to be prompted again is to uninstall the app, or reset privacy on the device.
The easiest approach would be to provide an alert controller with a link to settings so that they can turn it on themselves.
Here is a link that shows the process for doing that.
I'm trying to use MapKit on iOS 8 and I keep getting the error:
Trying to start MapKit location updates without prompting for location authorization. Must call
-[CLLocationManager requestWhenInUseAuthorization] or -[CLLocationManager
requestAlwaysAuthorization] first.
Looking it up here, I found that I had to implement NSLocationWhenInUsageDescription in my plist but nothing happens and I still get that error in the console. What am I doing wrong?
1.- Add the following lines to your info.plist
<key>NSLocationWhenInUseUsageDescription</key>
<string>The spirit of stack overflow is coders helping coders</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>I have learned more on stack overflow than anything else</string>
2.- Prompt for location authorization:
if ([self.locationManager respondsToSelector:#selector(requestAlwaysAuthorization)]) {
[self.locationManager requestAlwaysAuthorization];
3.-Update location when user have accepted...
- (void) locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status{
if (status == kCLAuthorizationStatusAuthorizedAlways || status == kCLAuthorizationStatusAuthorizedWhenInUse) {
[self.locationManager startUpdatingLocation];
}
}
just add those code in CLLocationManager initialization.
for example:
#property (strong, nonatomic) CLLocationManager *locationManager;
then in your implementation just call [self.locationManager requestWhenInUseAuthorization]; before calling the update function.
after your cllocationmanager initilaisation check for ios 8 and ask for the permission
locationManager = [[CLLocationManager alloc] init];// [[[CLLocationManager alloc] init] autorelease];
locationManager.delegate = self;
// Check for iOS 8. Without this guard the code will crash with "unknown selector" on iOS 7.
if ([locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]) {
[locationManager requestWhenInUseAuthorization];
}
reference http://nevan.net/2014/09/core-location-manager-changes-in-ios-8/
In addition to implementing the keys in PList (I have NSLocationWhenInUseUsageDescritpion and Privacy - Location Usage Description), I solved the warning with the following code:
if ([CLLocationManager locationServicesEnabled])
{
CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
if (status == kCLAuthorizationStatusRestricted || status == kCLAuthorizationStatusDenied || status == kCLAuthorizationStatusNotDetermined) {
} else {
_mapView.showsUserLocation = YES;
}
}
I have an app that uses background location updates, it needs to constantly track the devices position regardless if the app is in the foreground or background. I have the background tracking setup in the app delegate.
In the front end I have a single UIViewController with a working mapkit view all the CCLocationManager code triggers without error but didUpdateUserLocation is never fired within the custom UIViewController class.
Background location tracking is working with absolutely no problems.
Here is the code i'm using in viewDidLoad
[self.mapView setShowsUserLocation:YES];
[self.mapView setShowsPointsOfInterest:YES];
self.locationManager = [[CLLocationManager alloc] init];
[self.locationManager requestWhenInUseAuthorization];
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.distanceFilter = kCLDistanceFilterNone;
[self.locationManager setDelegate:self];
if ([self.locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]) {
[self.locationManager requestWhenInUseAuthorization];
}
NSString *error;
if (![CLLocationManager locationServicesEnabled]) {error = #"Error message";}
CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
if (status == kCLAuthorizationStatusRestricted || status == kCLAuthorizationStatusDenied) {error = #"Error message";}
if (error) {NSLog(error);}
else
{
status = [CLLocationManager authorizationStatus];
self.locationManager.pausesLocationUpdatesAutomatically = NO;
self.locationManager.activityType = CLActivityTypeAutomotiveNavigation;
[self.locationManager stopMonitoringSignificantLocationChanges];
[self.locationManager startUpdatingLocation];
}
Any help would be appreciated
Thanks
You need to check below details:
Testing this on simulator?? didUpdateLocations must be tested on real device.
Make sure that you specified the NSLocationAlwaysUsageDescription string or else the app won't present the authorization message, and you won't be authorized.
Have you implemented locationManager:didFailWithError:? did you got any error?
Have you implemented locationManager:didChangeAuthorizationStatus:? Are you getting this called with a successful authorization status?
I worked out the problem finally.
Turns out even if you're using the location stuff in Schema and Xcode you still need to set it in the Simulator via Debug > Location
Hopefully this helps someone else.
and now, with iOS 9, the following needs to be included for any update;
if ([ locationManager respondsToSelector:#selector(requestWhenInUseAuthorization )])
{
locationManager.allowsBackgroundLocationUpdates = YES;
}
Else background updates will be impaired.
I am having a lot of trouble after updating to iOS 8. The following code worked before I updated to iOS and Xcode 6. Code is written inside viewDidLoad:
self.locationManager.delegate = self;
[self.locationManager requestWhenInUseAuthorization];
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[self.locationManager startUpdatingLocation];
In my .h file, I have locationManager as a property, also declaring CLLocationManagerDelegate:
#property CLLocationManager *locationManager;
I've set a breakpoint inside
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
but the code never ran.
What step am I missing???
EDIT: do note that the prompt asking the user to allow location services never appeared. I suspect that this is the issue but I did request the service right after I declared the delegate to self.
Also added
<key>NSLocationWhenInUseUsageDescription</key>
<string>Your message goes here</string>
But still does not work for me
if you start location before user agree to use location server
ios8 or later change to
- (xx)xxxx
{
self.locationManager.delegate = self;
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedAlways) {
[self.locationManager startUpdatingLocation];
}else{
[self.locationManager requestWhenInUseAuthorization];
}
}
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
if([CLLocationManager authorizationStatus] != kCLAuthorizationStatusNotDetermined){
[self.locationManager startUpdatingLocation];
}
}
You need to add NSLocationWhenInUseUsageDescription key to your info.plist. (From my testing, it can be an empty string, but the key must exist. Not sure if Apple fails review for empty string, though.)
You need to use 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.
More information in this post: Location Services not working in iOS 8
So after all the "iOS 8" issues, I realized my problem was that I didn't allocate and init my locationManager
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
[self.locationManager requestWhenInUseAuthorization];
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedAlways) {
[self.locationManager startUpdatingLocation];
}else{
[self.locationManager requestWhenInUseAuthorization];
[self.locationManager requestAlwaysAuthorization];
}
[self.locationManager startUpdatingLocation];
Spent few days trying to solve this but unable to find any solutions that works. I have checked all the post on stackoverflow and tried all their solutions and nothing seems to be working for. I have also tried the apple test project for CLLocation which works fine for me. I used bits and pieces from the apple test project
https://developer.apple.com/library/ios/samplecode/LocateMe/Listings/README_md.html
But my code is not working at all. The DidupdateToLocation never gets called.
Here is my code (in viewDidLoad)
_locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
// This is the most important property to set for the manager. It ultimately determines how the manager will
// attempt to acquire location and thus, the amount of power that will be consumed.
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
// Once configured, the location manager must be "started"
//
// 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];
[self performSelector:#selector(stopUpdatingLocationWithMessage:)
withObject:#"Timed Out"
afterDelay:30];
I have checked to make sure locationServicesEnabled is enabled.
I have added NSLoationWhenInUseUsageDescription property to the info.plist file. Is there any other property I need to add or enable any services??
I cannot for the love of god figure out what i have done wrong. Can some one please help me with this.
You have to call the startUpdatingLocation after you received the didChangeAuthorizationStatus callback on iOS8.
//iOS 8 API change
if([self.locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]){
[self.locationManager requestWhenInUseAuthorization];
}else{
[self.locationManager startUpdatingLocation];
}
implement this delegate method:
-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
switch (status) {
case kCLAuthorizationStatusNotDetermined:
case kCLAuthorizationStatusRestricted:
case kCLAuthorizationStatusDenied:
{
// do some error handling
}
break;
default:{
[self.locationManager startUpdatingLocation];
}
break;
}
}
First, don't forget, with IOS 8 you need to do [locationManager requestWhenInUseAuthorization] plus [locationManager requestAlwaysAuthorization];
_locationManager = [CLLocationManager new];
if(SYSTEM_IS_OS_8_OR_LATER) {
[_locationManager requestWhenInUseAuthorization];
[_locationManager requestAlwaysAuthorization];
}
_locationManager.delegate = self;
_locationManager.desiredAccuracy = kCLLocationAccuracyBest;
//and the problem with your code : don't forget to start
_locationManager startUpdatingLocation];
and in your didUpdateLocations
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{
_currentLocation = [locations objectAtIndex:0];
//do your stuff with the location
}
Silly me. I added the keywords to the wrong plist file. I have got it working now. Thanks for your help guys.
I just spend an entire morning on this [in honestly I am relative new OOC], anyway the problem..
didUpdateLocation compiles and is never called
didUpdateLocations compiles and does work!!
Not the answer in this case it would seem, but it is in the question, an easy mistake to make. Using IOS 8.1.3 & Xcode 6.1.1
Simply add three properties in Info.plist.
To get the current location, if it is not calling didUpdateToLocation method
NSLocationWhenInUseUsageDescription
NSLocationAlwaysUsageDescription
privacy - location usage description of type String.