Getting Location Services to work in IOS 8 - ios

Question

I am trying to update some old code to get it to work in IOS 8. I have read through
Location Services not working in iOS 8
but I am still very confused as to how to correctly implement the methodology.
I have added in
<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>
into the infoPlist.strings
but I am not sure how to update my code to get it to execute properly. Here is a copy of the old code that I am using. Can anyone provide insight on how to properly update this code in order to get it to work with IOS 8?
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status {
NSLog(#"%s", __PRETTY_FUNCTION__);
switch (status) {
case kCLAuthorizationStatusAuthorizedAlways:
{
NSLog(#"kCLAuthorizationStatusAuthorized");
// Re-enable the post button if it was disabled before.
self.navigationItem.rightBarButtonItem.enabled = YES;
[self.locationManager startUpdatingLocation];
}
break;
case kCLAuthorizationStatusDenied:
NSLog(#"kCLAuthorizationStatusDenied");
{
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Anywall can’t access your current location.\n\nTo view nearby posts or create a post at your current location, turn on access for Anywall to your location in the Settings app under Location Services." message:nil delegate:self cancelButtonTitle:nil otherButtonTitles:#"OK", nil];
[alertView show];
// Disable the post button.
self.navigationItem.rightBarButtonItem.enabled = NO;
}
break;
case kCLAuthorizationStatusNotDetermined:
{
NSLog(#"kCLAuthorizationStatusNotDetermined");
}
break;
case kCLAuthorizationStatusRestricted:
{
NSLog(#"kCLAuthorizationStatusRestricted");
}
break;
}
}
The code I am using here is from an old version of parse's Anywall Tutorial. I have tried adding in
case kCLAuthorizationStatusNotDetermined:
{
NSLog(#"kCLAuthorizationStatusNotDetermined");
[self.locationManager requestAlwaysAuthorization];
}
break;
In addition the application also displays the user's location on a map do I have to update that method as well?

Answer 1

You have to do it like this:
1)#import <CoreLocation/CoreLocation.h>
2)Set delegate CLLocationManagerDelegate
3)Create CLLocationManager *locationManager; Object
4)#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending) in your .m file
5)Setup location manager
if (self.locationManager==nil) {
self.locationManager = [[CLLocationManager alloc]init];
}
self.locationManager.delegate = self;
CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
// If the status is denied or only granted for when in use, display an alert
if (status == kCLAuthorizationStatusAuthorizedWhenInUse || status == kCLAuthorizationStatusDenied || status == kCLAuthorizationStatusRestricted) {
if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(#"8.0"))
{
NSString *title;
title = (status == kCLAuthorizationStatusDenied) ? #"Location services are off" : #"Background location is not enabled";
NSString *message = #"To use background location you must turn on 'Always' in the Location Services Settings";
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:title
message:message
delegate:self
cancelButtonTitle:#"Cancel"
otherButtonTitles:#"Settings", nil];
[alertView setTag:1001];
[alertView show];
[alertView release];
}
else{
NSString *titles;
titles = #"Title";
NSString *msg = #"Location services are off. To use location services you must turn on 'Always' in the Location Services Settings from Click on 'Settings' > 'Privacy' > 'Location Services'. Enable the 'Location Services' ('ON')";
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:titles
message:msg
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
[alertView release];
}
}
// The user has not enabled any location services. Request background authorization.
else if (status == kCLAuthorizationStatusNotDetermined) {
if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(#"8.0"))
{
[self.locationManager requestAlwaysAuthorization];
}
}
[self.locationManager startUpdatingLocation];
6)Setup alert view for iOS 8
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if (alertView.tag==1001){
if (buttonIndex == 1) {
// Send the user to the Settings for this app
NSURL *settingsURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
[[UIApplication sharedApplication] openURL:settingsURL];
}
}
}