CODEWITHSUNDEEP
ipadios6core-location
LittlePeculiar
LittlePeculiar

Reputation: 403

ipad app running Core Location in background crashes

I've been working on this for a few days. Any idea what this means? please help! let me know if more info is required

EXC_BAD_ACCESS (SIGSEGV)

Thread 11 name: Dispatch queue: com.apple.CoreLocation.ConnectionClient.0x200826b0.events Thread 11 Crashed: 0 libdispatch.dylib 0x387b2420 dispatch_sync_f$VARIANT$mp + 0 1 CoreLocation 0x393c8088 CLConnectionClient::setCachedResponse(CLConnectionMessage*, bool ( block_pointer)()) + 76 2 CoreLocation 0x393c8558 __setDefaultMessageHandler_onQueue_block_invoke_0 + 28 3 CoreLocation 0x393c7070 __setEventHandler_block_invoke_0 + 344 4 libxpc.dylib 0x367ef7e4 _xpc_connection_mach_event + 768 5 libdispatch.dylib 0x387b6524 _dispatch_mach_msg_invoke$VARIANT$mp + 120 6 libdispatch.dylib 0x387b2e8e _dispatch_queue_drain$VARIANT$mp + 78 7 libdispatch.dylib 0x387b67b2 _dispatch_mach_invoke$VARIANT$mp + 158 8 libdispatch.dylib 0x387b2e8e _dispatch_queue_drain$VARIANT$mp + 78 9 libdispatch.dylib 0x387b2dbc _dispatch_queue_invoke$VARIANT$mp + 36 10 libdispatch.dylib 0x387b2e8e _dispatch_queue_drain$VARIANT$mp + 78 11 libdispatch.dylib 0x387b2dbc _dispatch_queue_invoke$VARIANT$mp + 36 12 libdispatch.dylib 0x387b391a _dispatch_root_queue_drain + 182 13 libdispatch.dylib 0x387b3abc _dispatch_worker_thread2 + 80 14 libsystem_c.dylib 0x34097a0e _pthread_wqthread + 358 15 libsystem_c.dylib 0x340978a0 start_wqthread + 4

- (void)startupLocationManager
{
    // startup location manager for background processing
    if (self.locationManager == nil)
    {
        self.locationManager = [[CLLocationManager alloc] init];
        self.locationManager.delegate = self;
        self.locationManager.distanceFilter = kCLDistanceFilterNone;
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        [self.locationManager startUpdatingLocation];

    }
}

- (void)stopLocationManager
{
    if (self.locationManager)
    {
        [self.locationManager stopUpdatingLocation];
        self.locationManager.delegate = nil;
        self.locationManager = nil;

        if (self.isInBackground == YES)
        {
            [self startupLocationManager];
        }
    }
}

Upvotes: 2

Views: 1434

Answers (1)

LittlePeculiar
LittlePeculiar

Reputation: 403

I found a solution with help from other posts. It turned out to be a timing issue. I created another method to reset my location manager and I call it with a delay. This fixed everything. Hope this helps you too.

- (void)stopLocationManager
{
    if (locationManager)
    {
        [locationManager stopUpdatingLocation];
        [self performSelector:@selector(discardLocationManager) withObject:nil afterDelay:0.1];
    }
}

- (void) discardLocationManager
{
    locationManager.delegate = nil;
    locationManager = nil;

    if (self.isRestart == YES)
    {
        [self performSelector:@selector(startupLocationManager) withObject:nil afterDelay:0.1];
    }
}

Upvotes: 1

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