當開啟藍芽後, 可進行搜索藍芽裝置.
如何設定與開啟藍芽裝置請參考: 開啟藍芽
Step 1: 偵測是否已開始搜尋藍芽
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| mCBCentralManager.isScanning
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Step 2: 搜尋藍芽裝置
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| mCBCentralManager.scanForPeripheralsWithServices(nil, options: nil);
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Step 3: 監聽搜尋裝置
找到/發現裝置時會經由callback function返回
(CBCentralManagerDelegate potocol’s function)
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| func centralManager(central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber)
}
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Step 4: 停止搜尋裝置
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| mCBCentralManager.stopScan();
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Source Code
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| import Foundation
import CoreBluetooth
class BtManager : NSObject {
var mCBCentralManager: CBCentralManager!
override init() {
super.init();
initCBCentralManager();
}
internal func initCBCentralManager() {
mCBCentralManager = CBCentralManager(delegate: self, queue: nil, options: [CBCentralManagerOptionShowPowerAlertKey: true]);
}
func isScanning() -> Bool {
return mCBCentralManager.isScanning;
}
func startToScan() {
if (mCBCentralManager.state == CBCentralManagerState.PoweredOff) {
print("state is off");
initCBCentralManager();
} else {
if (isScanning()) {
print("state is scanning");
} else {
mCBCentralManager.scanForPeripheralsWithServices(nil, options: nil);
print("start to scan: \(isScanning())");
}
}
}
func stopScanning() {
mCBCentralManager.stopScan();
}
}
extension BtManager : CBCentralManagerDelegate {
func centralManagerDidUpdateState(central: CBCentralManager) {
switch (central.state) {
case CBCentralManagerState.PoweredOn:
print("state On");
case CBCentralManagerState.PoweredOff:
print("state Off");
case CBCentralManagerState.Unknown:
fallthrough;
default:
print("state Unknow");
}
}
func centralManager(central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber) {
print("Device: \(peripheral.name) : \(peripheral.identifier.UUIDString)");
}
}
|