Question

我已经看到其他关于在设备配对时自动发送PIN（例如1234）的帖子，因此没有用户提示。我无法弄清楚如何添加代码片段以使其工作。

如何修改以下代码才能实现此目的？

/**
 * Device list.
 * 
 * @author Lorensius W. L. T <lorenz@londatiga.net>
 *
 */
public class DeviceListActivity extends Activity {
    private ListView mListView;
    private DeviceListAdapter mAdapter;
    private ArrayList<BluetoothDevice> mDeviceList;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_paired_devices);

        mDeviceList     = getIntent().getExtras().getParcelableArrayList("device.list");

        mListView       = (ListView) findViewById(R.id.lv_paired);

        mAdapter        = new DeviceListAdapter(this);

        mAdapter.setData(mDeviceList);
        mAdapter.setListener(new DeviceListAdapter.OnPairButtonClickListener() {            
            @Override
            public void onPairButtonClick(int position) {
                BluetoothDevice device = mDeviceList.get(position);

                if (device.getBondState() == BluetoothDevice.BOND_BONDED) {
                    unpairDevice(device);
                } else {
                    showToast("Pairing...");

                    pairDevice(device);
                }
            }
        });

        mListView.setAdapter(mAdapter);

        registerReceiver(mPairReceiver, new IntentFilter(BluetoothDevice.ACTION_BOND_STATE_CHANGED)); 
    }

    @Override
    public void onDestroy() {
        unregisterReceiver(mPairReceiver);

        super.onDestroy();
    }


    private void showToast(String message) {
        Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT).show();
    }

    private void pairDevice(BluetoothDevice device) {
        try {
            Method method = device.getClass().getMethod("createBond", (Class[]) null);
            method.invoke(device, (Object[]) null);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void unpairDevice(BluetoothDevice device) {
        try {
            Method method = device.getClass().getMethod("removeBond", (Class[]) null);
            method.invoke(device, (Object[]) null);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private final BroadcastReceiver mPairReceiver = new BroadcastReceiver() {
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();

            if (BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(action)) {             
                 final int state        = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, BluetoothDevice.ERROR);
                 final int prevState    = intent.getIntExtra(BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE, BluetoothDevice.ERROR);

                 if (state == BluetoothDevice.BOND_BONDED && prevState == BluetoothDevice.BOND_BONDING) {
                     showToast("Paired");
                 } else if (state == BluetoothDevice.BOND_NONE && prevState == BluetoothDevice.BOND_BONDED){
                     showToast("Unpaired");
                 }

                 mAdapter.notifyDataSetChanged();
            }
        }
    };
}

Answer 1

How can I avoid or dismiss Android's Bluetooth pairing notification when I am doing programmatic pairing?

这可能是您在mPairReceiver中触发时发送PIN码所需的内容。

Android Studio - 自动发送蓝牙PIN码

1 个答案: