It is necessary when the button1 is held, the relay was turned on, as soon as I let it go, the switching-off stopped.

package elephent.lexusaircontroll; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.app.Activity; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothSocket; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; import java.io.IOException; import java.io.OutputStream; import java.util.UUID; public class MainActivity extends Activity { private static final String TAG = "bluetooth1"; Button button1, button2;//Указываем id наших кнопок private static final int REQUEST_ENABLE_BT = 1; private BluetoothAdapter btAdapter = null; private BluetoothSocket btSocket = null; private OutputStream outStream = null; // SPP UUID сервиса private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); // MAC-адрес Bluetooth модуля private static String address = "98:D3:35:70:E7:67"; //Вместо “00:00” Нужно нудет ввести MAC нашего bluetooth /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button1 = (Button) findViewById(R.id.m1); //Добавляем сюда имена наших кнопок button2 = (Button) findViewById(R.id.m2); btAdapter = BluetoothAdapter.getDefaultAdapter(); checkBTState(); button1.setOnClickListener(new OnClickListener() //Если будет нажата кнопка 1 то { public void onClick(View v) { sendData("1"); // Посылаем цифру 1 по bluetooth Toast.makeText(getBaseContext(), "Включаем LED", Toast.LENGTH_SHORT).show(); //выводим на устройстве сообщение } }); button2.setOnClickListener(new OnClickListener() { public void onClick(View v) { sendData("0"); // Посылаем цифру 1 по bluetooth Toast.makeText(getBaseContext(), "Выключаем LED", Toast.LENGTH_SHORT).show(); } }); } @Override public void onResume() { super.onResume(); Log.d(TAG, "...onResume - попытка соединения..."); // Set up a pointer to the remote node using it's address. BluetoothDevice device = btAdapter.getRemoteDevice(address); // Two things are needed to make a connection: // A MAC address, which we got above. // A Service ID or UUID. In this case we are using the // UUID for SPP. try { btSocket = device.createRfcommSocketToServiceRecord(MY_UUID); } catch (IOException e) { errorExit("Fatal Error", "In onResume() and socket create failed: " + e.getMessage() + "."); } // Discovery is resource intensive. Make sure it isn't going on // when you attempt to connect and pass your message. btAdapter.cancelDiscovery(); // Establish the connection. This will block until it connects. Log.d(TAG, "...Соединяемся..."); try { btSocket.connect(); Log.d(TAG, "...Соединение установлено и готово к передачи данных..."); } catch (IOException e) { try { btSocket.close(); } catch (IOException e2) { errorExit("Fatal Error", "In onResume() and unable to close socket during connection failure" + e2.getMessage() + "."); } } // Create a data stream so we can talk to server. Log.d(TAG, "...Создание Socket..."); try { outStream = btSocket.getOutputStream(); } catch (IOException e) { errorExit("Fatal Error", "In onResume() and output stream creation failed:" + e.getMessage() + "."); } } @Override public void onPause() { super.onPause(); Log.d(TAG, "...In onPause()..."); if (outStream != null) { try { outStream.flush(); } catch (IOException e) { errorExit("Fatal Error", "In onPause() and failed to flush output stream: " + e.getMessage() + "."); } } try { btSocket.close(); } catch (IOException e2) { errorExit("Fatal Error", "In onPause() and failed to close socket." + e2.getMessage() + "."); } } private void checkBTState() { // Check for Bluetooth support and then check to make sure it is turned on // Emulator doesn't support Bluetooth and will return null if(btAdapter==null) { errorExit("Fatal Error", "Bluetooth не поддерживается"); } else { if (btAdapter.isEnabled()) { Log.d(TAG, "...Bluetooth включен..."); } else { //Prompt user to turn on Bluetooth Intent enableBtIntent = new Intent(btAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT); } } } private void errorExit(String title, String message){ Toast.makeText(getBaseContext(), title + " - " + message, Toast.LENGTH_LONG).show(); finish(); } private void sendData(String message) { byte[] msgBuffer = message.getBytes(); Log.d(TAG, "...Посылаем данные: " + message + "..."); try { outStream.write(msgBuffer); } catch (IOException e) { String msg = "In onResume() and an exception occurred during write: " + e.getMessage(); if (address.equals("98:D3:35:70:E7:67")) msg = msg + ".\n\nВ переменной address у вас прописан 00:00:00:00:00:00, вам необходимо прописать реальный MAC-адрес Bluetooth модуля"; msg = msg + ".\n\nПроверьте поддержку SPP UUID: " + MY_UUID.toString() + " на Bluetooth модуле, к которому вы подключаетесь.\n\n"; errorExit("Fatal Error", msg); } } }

    1 answer 1

    You can use onTouchListener - there you can detect longclick itself and the conditions when you remove your finger from the button (onClickListener will not be needed anymore) here is an example

      OnTouchListener mTouchListener = new OnTouchListener(){ private totalTimeDown = -1; private downTime = -1; public boolean onTouch(View v, MotionEvent me){ if(me.getAction() == MotionEvent.ACTION_DOWN){ downTime = System.getCurrentTimeInMillis(); return true; } if(me.getAction() == MotionEvent.ACTION_UP){ totalTimeDown = System.getCurrentTimeInMillis() - downTime; if(totalTimeDown > 500){ //палец удержан достаточно времени для условия longClick return true; } } return false; } });