0
所以，我想我的應用程序連接到我的電腦，然後使用android作爲觸摸板。我一直在網上做了大量的研究，但我沒有找到任何地方如何將我的手機精確連接到PC。我做了配對設備功能和其他一切，我只需要連接方法，或者至少可以做到這一點。下面是代碼：將藍牙從Android連接到計算機（配對設備）
public class MainActivity extends Activity {
private BluetoothAdapter adapter;
private Intent turnOn;
private Set<BluetoothDevice> pairedDevices;
private ListView lv;
private Button on,off,pairedDevice,discoverable,nearDevices;
private List<BluetoothDevice> discoveredDevices = new ArrayList<BluetoothDevice>();
private Handler mHandler;
private static final UUID MY_UUID = UUID.fromString("04c6093b-0000-1000-8000-00805f9b34fb");
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initialize();
buttonFunc();
find();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void lista(int i){
if(i==0) {
final DeviceAdapter deviceAdapter = new DeviceAdapter(MainActivity.this, discoveredDevices);
lv.setAdapter(deviceAdapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
pairDevice(deviceAdapter.getItem(position));
Message.message(MainActivity.this, deviceAdapter.getItem(position).getName().toString());
}
});
}
else if(i == 1){
List<BluetoothDevice> vecUpareni = new ArrayList<BluetoothDevice>();
for (BluetoothDevice bt:adapter.getBondedDevices()){
vecUpareni.add(bt);
}
final DeviceAdapter deviceAdapter = new DeviceAdapter(MainActivity.this, vecUpareni);
lv.setAdapter(deviceAdapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String adresa = deviceAdapter.getItem(position).getAddress();
Method connect = getConnectMethod();
BluetoothDevice device = deviceAdapter.getItem(position);
}
});
}
}
private Method getConnectMethod() {
try {
return BluetoothA2dp.class.getDeclaredMethod("connect", BluetoothDevice.class);
} catch (NoSuchMethodException ex) {
Message.message(MainActivity.this , "Unable to connect");
return null;
}
}
private void pairDevice(BluetoothDevice device) {
try {
Log.d("pairDevice()", "Start Pairing...");
Method m = device.getClass().getMethod("createBond", (Class[]) null);
m.invoke(device, (Object[]) null);
Log.d("pairDevice()", "Pairing finished.");
} catch (Exception e) {
Log.e("pairDevice()", e.getMessage());
}
}
public void buttonFunc(){
on.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
turnOn = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(turnOn,0);
Message.message(MainActivity.this , "Bluetooth enabled");
}
});
off.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
adapter.disable();
}
});
pairedDevice.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
lista(1);
}
});
discoverable.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent discoverableIntent = new
Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 1);
startActivity(discoverableIntent);
}
});
nearDevices.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
lista(0);
}
});
}
public void find(){
IntentFilter filter = new IntentFilter();
filter.addAction(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
registerReceiver(mReceiver, filter);
adapter.startDiscovery();
}
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action)) {
//discovery starts, we can show progress dialog or perform other tasks
} else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
//discovery finishes, dismis progress dialog
} else if (BluetoothDevice.ACTION_FOUND.equals(action)) {
//bluetooth device found
BluetoothDevice device = (BluetoothDevice) intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
discoveredDevices.add(device);
Message.message(MainActivity.this, "Found device " + device.getName());
lista(0);
}
}
};
public void initialize(){
on = (Button) findViewById(R.id.ON);
off = (Button) findViewById(R.id.OFF);
pairedDevice = (Button) findViewById(R.id.pairedDevices);
nearDevices = (Button) findViewById(R.id.nearDevices);
discoverable = (Button) findViewById(R.id.makeDiscoverable);
lv = (ListView) findViewById(R.id.listaUredjaja);
adapter = BluetoothAdapter.getDefaultAdapter();
if(adapter == null){
System.out.close();
}
if(adapter.isEnabled()){
Message.message(MainActivity.this , "Enabled");
}
else{
Message.message(MainActivity.this , "Not enabled");
}
}
}
這裏是我的電腦上正在等待連接的服務器：
public class Mejn {
//start server
private void startServer() throws IOException{
//Create a UUID for SPP
UUID uuid = new UUID("1101", true);
//Create the servicve url
String connectionString = "btspp://localhost:" + uuid +";name=Sample SPP Server";
//open server url
StreamConnectionNotifier streamConnNotifier = (StreamConnectionNotifier)Connector.open(connectionString);
//Wait for client connection
System.out.println("\nServer Started. Waiting for clients to connect...");
StreamConnection connection=streamConnNotifier.acceptAndOpen();
RemoteDevice dev = RemoteDevice.getRemoteDevice(connection);
System.out.println("Remote device address: "+dev.getBluetoothAddress());
System.out.println("Remote device name: "+dev.getFriendlyName(true));
//read string from spp client
InputStream inStream=connection.openInputStream();
BufferedReader bReader=new BufferedReader(new InputStreamReader(inStream));
String lineRead=bReader.readLine();
System.out.println(lineRead);
//send response to spp client
OutputStream outStream=connection.openOutputStream();
PrintWriter pWriter=new PrintWriter(new OutputStreamWriter(outStream));
pWriter.write("Response String from SPP Server\r\n");
pWriter.flush();
pWriter.close();
streamConnNotifier.close();
}
public static void main(String[] args) throws IOException {
//display local device address and name
LocalDevice localDevice = LocalDevice.getLocalDevice();
System.out.println("Address: "+localDevice.getBluetoothAddress());
System.out.println("Name: "+localDevice.getFriendlyName());
Mejn sampleSPPServer=new Mejn();
sampleSPPServer.startServer();
}
}