我只想获取我周围的任何蓝牙设备的列表,但是Corebluetooth显示仅显示蓝牙低能(4.0。
我不想连接到设备,而只显示其名称。
是否有解决方案?
您想做的是扫描您所在地区的所有CBPeripheral
。CBPeripheral
是外围任何CBService
(S)的广播的类。
要扫描这些外围设备,您将需要CBCentralManager
的实例。 CBCentralManager
是进行外围设备的扫描的类。
要执行此操作,您必须实例化CBCentralManager
centralManager = CBCentralManager(delegate: self, queue: .main)
一个好主意是在扫描外围设备之前告诉您的CBCentralManager
您只想发现一次独特的外围设备。
let options: [String: Any] = [CBCentralManagerScanOptionAllowDuplicatesKey:
NSNumber(value: false)]
当您告诉您的CBCentralManager
扫描时,请勿指定广告CBPeripheral
(S)的任何服务。而是通过此参数将nil
传递给您要发现 aster 外围设备。
centralManager?.scanForPeripherals(withServices: nil, options: options)
上面的呼叫将开始对该区域的蓝牙设备进行实际扫描。您将在扫描结果的CBCentralManagerdelegate方法中收到回调。
要获取蓝牙设备的名称,请简单地查看发现的CBPeripheral
的名称。您可以通过CBCentralManagerDelegate
方法didDiscover peripheral: CBPeripheral
。
func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
print("Discovered (peripheral.name ?? "")")
}
if (!_centralManager) {
dispatch_queue_t queue = dispatch_get_main_queue();
_centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:queue options:@{CBCentralManagerOptionShowPowerAlertKey:@YES}];
[_centralManager setDelegate:self];
}
//found BLE
- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI
{
//Array add peripheral
}
我正在使用这样的使用,请在按钮单击事件上连接CBCentralManagerDelegate, CBPeripheralDelegate
委托
func connectDevice(sender:UIButton){
if peripheral != nil {
manager.cancelPeripheralConnection(peripheral)
manager = CBCentralManager(delegate: self, queue: nil)
}
}
func centralManagerDidUpdateState(central: CBCentralManager) {
if central.state == CBCentralManagerState.PoweredOn {
central.scanForPeripheralsWithServices(nil, options: nil)
} else {
self.showAlert(Messages().alert , message: "Bluetooth is not on.")
}
}
func centralManager(central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber) {
let device = (advertisementData as NSDictionary).objectForKey(CBAdvertisementDataLocalNameKey) as? NSString
print(device)
if device?.containsString(BEAN_NAME) == true {
self.manager.stopScan()
self.peripheral = peripheral
self.peripheral.delegate = self
manager.connectPeripheral(peripheral, options: nil)
}
}