Question

在我的应用程序中我找到了信标＆amp;想要计算距离，这里两天我遇到了CCLocationManager委托函数中的一个问题返回空信标array.i尝试了CBCentralManagerDelegate函数我得到beacons的列表。在didRangeBeacons方法中给出空数组帮助我。下面是我试过的代码

代码：

@interface ViewController ()<CBCentralManagerDelegate,CLLocationManagerDelegate>
{
    NSMutableData *dat;
    CLBeaconRegion *clBeconRegion;

    CLLocationManager *locManager;
}
@property (strong,nonatomic) CBCentralManager *cbcManager;
- (IBAction)scanBtn:(id)sender;
@end

@implementation ViewController

- (void)viewDidLoad{
    [super viewDidLoad];

    self.cbcManager=[[CBCentralManager alloc] initWithDelegate:self queue:nil];
    locManager=[[CLLocationManager alloc] init];
    locManager.delegate=self;
    [self initRegion];
    clBeconRegion.notifyEntryStateOnDisplay=YES;
    [locManager requestAlwaysAuthorization];
    [self locationManager:locManager didStartMonitoringForRegion:clBeconRegion];
}
-(void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI
{
    NSLog(@"List of peripheral %@",peripheral);
    NSLog(@"List of advertisementData %@ %@",advertisementData,RSSI);

}

-(void)initRegion{
    NSUUID *uuid=[[NSUUID alloc]initWithUUIDString:@"XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"];
    clBeconRegion=[[CLBeaconRegion alloc]initWithProximityUUID:uuid identifier:@"BluetoothExample"];
    clBeconRegion.notifyEntryStateOnDisplay=YES;
    clBeconRegion.notifyOnEntry=YES;
    clBeconRegion.notifyOnExit=YES;
    [locManager startMonitoringForRegion:clBeconRegion];
}
-(void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral
{
    NSLog(@"didConnectPeripheral");
    [peripheral discoverServices:nil];
}

-(void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region{

    [locManager startRangingBeaconsInRegion:clBeconRegion];
}
-(void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region{
    NSLog(@"Entered Region");
     [locManager startRangingBeaconsInRegion:clBeconRegion];
}
-(void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region{
    NSLog(@"Exit Region");
    [locManager stopRangingBeaconsInRegion:clBeconRegion];
}
-(void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region{
    NSLog(@"beacons %@ last %@",beacons,[region proximityUUID]);
    CLBeacon *beacon=[[CLBeacon alloc]init];
    beacon=[beacons lastObject];
     NSLog(@"min %@ maj %@",beacon.minor,beacon.major);
}
- (IBAction)scanBtn:(id)sender
{
    NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:NO], CBCentralManagerScanOptionAllowDuplicatesKey, nil];
    [self.cbcManager scanForPeripheralsWithServices:nil options:options];
    NSLog(@"scan clicked");
}

我修复了NSLocationAlwaysUsageDescription info.plist。

我有一个真正的灯塔＆amp; ipad mini设备。

这个代码在所有信标查找示例中给出。帮助我在这里犯了什么错误。

Answer 1

几点：

如果您没有获得测距回调，ProximityUUID可能不正确。使用像Locate这样的现成信标检测器，并验证您是否可以检测到信标，并且ProximityUUID是CLBeaconRegion设置为检测的内容。
转到设置 - ＆gt;验证您是否已正确获取位置权限（您的应用名称），并且验证位置设置为＆＃34;始终＆＃34;
检测iBeacons时无需使用CoreBluetooth。您应该删除具有CB前缀的类的所有行。虽然此代码将为您提供附近的iBeacon蓝牙设备列表，但它不会让您读取信标标识符。您必须使用CoreLocation来执行此操作。
此方法调用由CoreLocation框架进行，不应手动调用。应将其删除：[self locationManager:locManagerdidStartMonitoringForRegion:clBeconRegion];

在目标C

1 个答案: