如何查看藍牙連接？

Question

有人能教教我怎麼可以找出藍牙連接到其他設備（手機，耳機等）

Answer 1

我不知道有什麼辦法讓當前連接的設備的清單，但你可以聽使用ACL_CONNECTED意圖的新連接： http://developer.android.com/reference/android/bluetooth/BluetoothDevice.html#ACTION_ACL_CONNECTED

這INTE nt在連接所在的遠程設備中包含一個額外的域。

在Android上，所有藍牙連接都是ACL連接，因此註冊此意向會爲您提供所有新連接。

所以，你的接收器將是這個樣子：

public class ReceiverBlue extends BroadcastReceiver { 
    public final static String CTAG = "ReceiverBlue"; 
    public Set<BluetoothDevice> connectedDevices = new HashSet<BluetoothDevice>(); 

    public void onReceive(Context ctx, Intent intent) { 

    final BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 

    if (BluetoothDevice.ACTION_ACL_CONNECTED.equalsIgnoreCase(action)) { 
     Log.v(CTAG, "We are now connected to " + device.getName()); 
     if (!connectedDevices.contains(device)) 
     connectedDevices.add(device); 
    } 

    if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equalsIgnoreCase(action)) { 
     Log.v(CTAG, "We have just disconnected from " + device.getName()); 
     connectedDevices.remove(device); 
    } 
    } 
} 

Answer 2

我認爲getBondedDevices（）將幫助你:)

Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices(); 
// If there are paired devices 
if (pairedDevices.size() > 0) { 
// Loop through paired devices 
for (BluetoothDevice device : pairedDevices) { 
    // Add the name and address to an array adapter to show in a ListView 
    mArrayAdapter.add(device.getName() + "\n" + device.getAddress()); 
} 
} 

謝謝:)