iphone - GPS 在 iOS 4 上工作但在 iOS 5 上不工作

Question

在我的 AppDelegate 中我有一个属性:

GPSTracking*        _GPSTracker;

负责启动位置更新。它使用单例 CLLocationManagerDelegate 并像这样使用它:

@implementation GPSTracking

-(id) initWithDelegate:(MSpyAppDelegate *) _del
{
    if (self = [super init])
    {   
        self.mainDelegate = _del;
        [[InternalGPSManager sharedInstance] setMainDelegate: self.mainDelegate];
    }
    return self;
}

//Start getting locations
- (void)startUpdatingByManager
{
    [[InternalGPSManager sharedInstance] startLocationUpdateInSeparateThread];
    self.gpsTimer = [NSTimer scheduledTimerWithTimeInterval:(gpsUpdateInterval * 60)    target:self selector:@selector(startUpdatingByManager) userInfo:nil repeats:NO] 
}

实际位置经理委托(delegate):

内部GPSManager.h:

@interface InternalGPSManager : NSObject <CLLocationManagerDelegate>
   {
      CLLocationManager *locationManager;
   }
@property (nonatomic, retain) CLLocationManager *locationManager;

内部GPSManager.m

static InternalGPSManager *sharedCLDelegate = nil;
@implementation InternalGPSManager
@synthesize locationManager;


- (id)init
{
    self = [super init];

    if (self != nil) 
    {
        self.locationManager = [[[CLLocationManager alloc] init] autorelease];
        self.locationManager.delegate = self;
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    }

    return self;
}
    - (void)startLocationUpdateInSeparateThread
    {
        [NSThread detachNewThreadSelector:@selector(startLocationUpdate) toTarget:self withObject:nil];
    }
    - (void)startLocationUpdate
    {
        NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

        [self.locationManager startUpdatingLocation];

        [pool release];
    }

它适用于 iOS 4，但不适用于 iOS 5。永远不会调用位置委托(delegate)回调。 有什么想法吗？

Answer 1

幽默一下，然后尝试将您的代码更改为:

- (void)startLocationUpdateInSeparateThread
{
   // Not a separate thread!
   NSLog(@"Starting updates using delegate: %@", self.locationManager.delegate);
   [self.locationManager startUpdatingLocation];
}

PS:你为什么不用ARC？？？