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//import 생략

public class MainActivity extends AppCompatActivity {
private final String tag = "BluetoothManager";
private final int REQUEST = 1;

//Bluetooth Adapter
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
public final static int TOAST_MESSAGE = 0;
public final static int Image_driving = 1;
public final static int Image_theend = 2;
Button Connecting_button;
Button Tmap_Button;
Button Helmat_button, Screen_Button;
ImageView imageView;

Bluetooth_Manager bluetooth_manager = null;

LocationManager locationManager;

Start_Drive start_drive;

BroadcastReceiver mbroBroadcastReceiver;

private String GPS_Speed = "0";

TextToSpeech mTTS;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

if(!(ContextCompat.checkSelfPermission(this,Manifest.permission.RECEIVE_SMS)==PackageManager.PE
RMISSION_GRANTED)){
String[] permissions = {Manifest.permission.RECEIVE_SMS};
ActivityCompat.requestPermissions(this,permissions,1);
}

mbroBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if("android.provider.Telephony.SMS_RECEIVED".equals(intent.getAction())){
Log.d("BluetoothManager1"," 메시지를 받음");
if(bluetooth_manager != null){
if(bluetooth_manager.mmSocket.isConnected()){
Bluetooth_Data data = new Bluetooth_Data();
data.setMessage(" 메시지가 도착했습니다.");
bluetooth_manager.Write_data(data);
}

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