如何在android中掃描可用的藍牙設備？

Question

我需要獲得該地區可用的藍牙設備列表使用谷歌Android 2.1。

事情是，我不只需要這些設備的列表，我需要爲每個設備找到一個唯一的ID，我需要一個指標，如何「好」的信號接收（如「水平」在Android .wifi.ScanResult）...我該怎麼做？

Answer 1

Here有一個發現設備的完整示例。

您可以使用MAC地址作爲唯一ID。

關於信號強度，我認爲你應該使用RSSI（接收信號強度指標）。下面

Answer 2

退房代碼：

開始搜索

mBluetoothAdapter.startDiscovery(); 
mReceiver = new BroadcastReceiver() { 
public void onReceive(Context context, Intent intent) { 
    String action = intent.getAction(); 

    //Finding devices     
    if (BluetoothDevice.ACTION_FOUND.equals(action)) 
    { 
     // Get the BluetoothDevice object from the Intent 
     BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 
     // Add the name and address to an array adapter to show in a ListView 
     mArrayAdapter.add(device.getName() + "\n" + device.getAddress()); 
    } 
    } 
}; 

IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND); 
registerReceiver(mReceiver, filter); 

Answer 3

bluetoothScanning，需要調用方法方面

void bluetoothScanning(){ 

    IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND); 
    context.registerReceiver(mReceiver, filter); 
    final BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); 
    mBluetoothAdapter.startDiscovery(); 

} 


// Create a BroadcastReceiver for ACTION_FOUND. 
private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 
    public void onReceive(Context context, Intent intent) { 
     String action = intent.getAction(); 
     if (BluetoothDevice.ACTION_FOUND.equals(action)) { 
      // Discovery has found a device. Get the BluetoothDevice 
      // object and its info from the Intent. 
      BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 
      String deviceName = device.getName(); 
      String deviceHardwareAddress = device.getAddress(); // MAC address 

      Log.i("Device Name: " , "device " + deviceName); 
      Log.i("deviceHardwareAddress " , "hard" + deviceHardwareAddress); 
     } 
    } 
}; 

結果

名稱：LE-百色旋轉+的SoundLink deviceHardwareAddress ：MAC 04：52：C7：D1：B2：76

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