Android：获取本机已配对蓝牙列表

1. AndroidManifest.xml 配置文件中加入蓝牙许可权限：  <uses-permission android:name="android.permission.BLUETOOTH"/>

    　　　　　　　BluetoothAdapter bluetoothAdapter =BluetoothAdapter.getDefaultAdapter();
                if(bluetoothAdapter == null)
                {
                    System.out.println("本机未发现蓝牙设备。");
                }else {
                    if(!bluetoothAdapter.isEnabled())//判断蓝牙设备是否已开起
                    {
                        //开起蓝牙设备
                        Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
                        startActivity(intent);
                    }
                    Set<BluetoothDevice> devices = bluetoothAdapter.getBondedDevices();
                    for(Iterator<BluetoothDevice> iterator = devices.iterator();iterator.hasNext();)
                    {
                      BluetoothDevice device = iterator.next();
                      System.out.println(device.getAddress());
                      
                    }
                }