ios - 在iOS 8.4(设备)上未调用CLLocationManager didEnterRegion，didExitRegion和didDetermineState的委托(delegate)方法

我正在为Goefencing进行演示。

这是我的代码，

- (void) registerRegionForMonitoring {

    if (self.locationManager == nil) {
        self.locationManager = [[CLLocationManager alloc] init];
        self.locationManager.delegate = self;
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        self.locationManager.distanceFilter = kCLDistanceFilterNone;

        if ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) {
            [self.locationManager requestAlwaysAuthorization];
        }

        [self.locationManager startUpdatingLocation];
    }

    if(![CLLocationManager isMonitoringAvailableForClass:[CLCircularRegion class]]) {
        [Utilities showAlertWithTitle:@"Geofence" andMessage:@"This app requires region monitoring features which are unavailable on this device."];
        return;
    }

    for(NSDictionary *dictionary in geofences) {

        NSString *geofenceId = [NSString stringWithFormat:@"%@", [dictionary valueForKey:@"geofence_id"]];
        CLLocationDegrees latitude = [[dictionary valueForKey:@"latitude"] doubleValue];
        CLLocationDegrees longitude =[[dictionary valueForKey:@"longitude"] doubleValue];
        CLLocationCoordinate2D centerCoordinate = CLLocationCoordinate2DMake(latitude, longitude);
        CLLocationDistance regionRadius = [[dictionary valueForKey:@"radius"] doubleValue];

        CLRegion *geofenceRegion = [[CLCircularRegion alloc] initWithCenter:centerCoordinate radius:regionRadius identifier:geofenceId];
        [self.locationManager startMonitoringForRegion:geofenceRegion];
   }
}

这是委托方法

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {

    CLLocation *latestLocation = [locations lastObject];
    self.currentLocation = latestLocation;
}

- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
    [Utilities showAlertWithTitle:@"Geofence" andMessage:[NSString stringWithFormat:@"You are in region with identifire %@", region.identifire]];
}

- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
    [self.locationManager requestStateForRegion:region];
}

- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
    [Utilities showAlertWithTitle:@"Geofence" andMessage:[NSString stringWithFormat:@"You are out of region with identifire %@", region.identifire]];
}

- (void)locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region {

    if (state == CLRegionStateInside) {
        //  if user already in the region, when monitoring is started
        [Utilities showAlertWithTitle:@"Geofence" andMessage:[NSString stringWithFormat:@"You are in region with identifire %@", region.identifire]];
    }
}

我还在iOS 8+的"NSLocationAlwaysUsageDescription"文件中添加了密钥plist
还在下面添加了背景模式:

应用程序注册位置更新

应用程序使用CoreBluetooth共享数据

应用程序使用CoreBluetooth进行通信

应用程序下载内容以响应推送通知

一切都可以在iOS 7上正常运行，也可以在iOS 8.4的iOS仿真器中运行

在设备(iOS 8.4，iPad和iPod上)均不起作用

我已经检查了wifi。

我还已在“设置”中打开了“常规”->“后台应用程序刷新”

我不知道我在想什么？

欢迎所有建议。提前致谢。

最佳答案

您是否尝试过检查区域是否真正开始跟踪？此方法将返回错误。

- (void)locationManager:monitoringDidFailForRegion:withError:

如果您在从GPS获得好的位置之前调用start monitoringForRegion，则可能会收到错误消息。

另外，您可能还想检查CLRegionStateUnknown中的didDetermineState状态，因为这也是一个选项。

关于ios - 在iOS 8.4(设备)上未调用CLLocationManager didEnterRegion，didExitRegion和didDetermineState的委托(delegate)方法，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/31381500/