StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POiOS 6 Map problems with MKUserTrackingModeFollowWithHeading
primarykey
Id
15664092
data
AcceptedAnswerId
16947897
AnswerCount
2
ClosedDate
CommentCount
4
CommunityOwnedDate
CreationDate
2013-03-27T16:27:44.743
FavoriteCount
3
LastActivityDate
2014-02-21T09:13:38.467
LastEditDate
2014-02-21T09:13:38.467
LastEditorUserId
235297
OwnerUserId
1074625
ParentId
0
PostTypeId
1
Score
4
ViewCount
1398
LastEditorDisplayName
text
Body
I'm trying to solve two problems with <code>MKUserTrackingModeFollowWithHeading</code> in iOS 6: <ul> <li><code>MKUserTrackingModeFollowWithHeading</code> works briefly, but it's jittery and returns to <code>MKUserTrackingModeFollow</code> almost immediately, especially at high zoom levels. </li> <li>The app occasionally crashes when repeatedly changing the <code>MKUserTrackingMode</code>: I get <code>EXC_BAD_ACCESS</code> on the main thread, without further information. This is hard to reproduce, but it has happened repeatedly. </li> </ul> Any thoughts on what might be causing this? It feels like a bug, but Apple's own "Maps" app doesn't exhibit this behavior. In order to isolate the problems, I've created a Single View Application with an <code>MKMapView</code> and a <code>UIToolbar</code> (set up in a .xib), to which I'm adding a <code>MKUserTrackingBarButtonItem</code>. The <code>UIViewController</code> acts as a <code><MKMapViewDelegate></code>. Here's the complete implementation code: <pre><code>#import "ViewController.h" @implementation ViewController @synthesize mapView, toolbar; - (void)viewDidLoad { [super viewDidLoad]; // Add MKUserTrackingBarButtonItem to toolbar MKUserTrackingBarButtonItem *trackButton = [[MKUserTrackingBarButtonItem alloc] initWithMapView:self.mapView]; [toolbar setItems:[NSArray arrayWithObjects:trackButton, nil] animated:YES]; } - (void)mapView:(MKMapView *)mapView didChangeUserTrackingMode:(MKUserTrackingMode)mode animated:(BOOL)animated { // Log MKUserTrackingMode change NSString *modeType = (mode == 0) ? @"None" : ((mode == 1) ? @"Follow" : @"FollowWithHeading"); NSLog(@"MKUserTrackingMode changed to: %@", modeType); } @end </code></pre>
Tags
<ios><iphone><mkmapview><mapkit><core-location>
Title
iOS 6 Map problems with MKUserTrackingModeFollowWithHeading
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USOrtwin Gentz
UserOwnerUserId
1. UScarton
plurals
PostLinksPostIdRelatedPostId
1. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
PostLinksRelatedPostIdPostId
1. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POiOS 6 Map problems with MKUserTrackingModeFollowWithHeading
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 POiOS 6 Map problems with MKUserTrackingModeFollowWithHeading
 UserUserId
 USJochen
 VoteTypeVoteTypeId
 VTFavorite
3. VO
 singulars
 PostPostId
 POiOS 6 Map problems with MKUserTrackingModeFollowWithHeading
 UserUserId
 USPeter Grundner
 VoteTypeVoteTypeId
 VTFavorite
CommentsPostId

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.