为什么我的委托从未被叫？

我试图让我的iPhone 7升级到iBeacon显示用于测试目的为什么我的委托从未被叫？

我使用下面的代码，但我代表永远不会被调用，因此不会启动广告

- (IBAction)adminViewBeaconSwitchToggled:(id)sender { 

    NSUserDefaults *tillUserDefaults = [NSUserDefaults standardUserDefaults]; 

    if(_adminViewBeaconSwitch.isOn) { 
     [tillUserDefaults setInteger:1 forKey:@"beaconIsOn"]; 
     if ([NWTillHelper isDebug] == 1) { 
      NSLog(@"iBeacon Mode: ON"); 

      NSUUID *proximityUUID = [[NSUUID alloc] initWithUUIDString:@"39876A4B-43B2-4BE8-9A9C-41BAE913D56A"]; 

      CLBeaconRegion *beaconRegion = [[ CLBeaconRegion alloc] initWithProximityUUID:proximityUUID identifier:@"me.netwizards.office"]; 

      _beaconPeripheralData = [beaconRegion peripheralDataWithMeasuredPower:nil]; 

      _peripheralManager = [[CBPeripheralManager alloc] initWithDelegate:nil queue:nil]; 

      //[peripheralManager startAdvertising:beaconPeripheralData]; 
     } 
    } else { 
     [tillUserDefaults setInteger:0 forKey:@"beaconIsOn"]; 
     if ([NWTillHelper isDebug] == 1) { 
      NSLog(@"iBeacon Mode: OFF"); 
     } 
    } 
} 

- (void)peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral { 
    NSLog(@"iBeacon update state was triggered"); 

    switch (peripheral.state) { 
     case CBManagerStatePoweredOn: 
      NSLog(@"Powered on"); 
      [peripheral startAdvertising:_beaconPeripheralData]; 
      break; 
     case CBManagerStatePoweredOff: 
      NSLog(@"Powered Off"); 
      [peripheral stopAdvertising]; 
      break; 
     case CBManagerStateUnsupported: 
      NSLog(@"Device not supported"); 
      break; 
     default: 
      break; 
    } 
}

我怎样才能让它开始实际做广告并确保委托被调用？

来源

2017-05-04 Matt Douhan

'[[CBPeripheralManager alloc] initWithDelegate：nil queue：nil]'在这里代替nil，您应该通过'initWithDelegate：self' – Rajat

，导致以下警告/ Users/mdouhan/Documents/dev/NWMobileTill/NWMobileTill/AdminView.m：110：80：将'AdminView * const __strong'发送到不兼容类型'id _Nullable'的参数 –

您是否像这样在类中定义了委托类'ClassName – Rajat

这里在初始化CBPeripheralManager

_peripheralManager = [[CBPeripheralManager alloc] initWithDelegate:nil queue:nil];

你逝去的委托为nil，你应该通过为self的对象。

所以更新的代码应该是

_peripheralManager = [[CBPeripheralManager alloc] initWithDelegate:self queue:nil];

此外，在类中定义的委托CBPeripheralManagerDelegate。

来源

2017-05-04 03:22:28 Rajat

为什么我的委托从未被叫？

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