Ios 检查蓝牙状态-Swift 4
我在Xcode中的蓝牙有问题。我找不到一个很好的解决方案来检查蓝牙是否开启。我只想这样。我在网上搜索了一些解决方案,但没有一个适合我。你知道怎么检查蓝牙吗?我导入了CoreBluetooth类,并编写了以下代码:Ios 检查蓝牙状态-Swift 4,ios,swift,core-bluetooth,Ios,Swift,Core Bluetooth,我在Xcode中的蓝牙有问题。我找不到一个很好的解决方案来检查蓝牙是否开启。我只想这样。我在网上搜索了一些解决方案,但没有一个适合我。你知道怎么检查蓝牙吗?我导入了CoreBluetooth类,并编写了以下代码: if CBPeripheralManager.authorizationStatus() == .denied { code } if CBPeripheralManager.authorizationStatus() == .authorized { code } 为此执行CBC
if CBPeripheralManager.authorizationStatus() == .denied { code }
if CBPeripheralManager.authorizationStatus() == .authorized { code }
为此执行
CBCentralManagerDelegate
委派
var manager:CBCentralManager!
viewDidLoad() { // Or init()
manager = CBCentralManager()
manager.delegate = self
}
委托方法:
func centralManagerDidUpdateState(_ central: CBCentralManager) {
switch central.state {
case .poweredOn:
break
case .poweredOff:
print("Bluetooth is Off.")
break
case .resetting:
break
case .unauthorized:
break
case .unsupported:
break
case .unknown:
break
default:
break
}
}
您需要使用CBCentralManager,它提供委托方法“CentralManagerDipDateState”
func centralManagerDidUpdateState(_ central: CBCentralManager)
{
if central.state == .poweredOn
{
print("Searching for BLE Devices")
// Scan for peripherals if BLE is turned on
}
else
{
// Can have different conditions for all states if needed - print generic message for now, i.e. Bluetooth isn't On
print("Bluetooth switched off or not initialized")
}
}