package hendrikschutter.com.externgnss; import android.Manifest; import android.annotation.SuppressLint; import android.content.Context; import android.location.LocationListener; import android.location.LocationManager; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import pub.devrel.easypermissions.AfterPermissionGranted; import pub.devrel.easypermissions.EasyPermissions; import static java.lang.Thread.sleep; import java.util.concurrent.BlockingQueue; import java.util.concurrent.LinkedBlockingQueue; public class MainActivity extends AppCompatActivity { private TextView output; private LocationManager locationManager= null; private SerialUSB serialUSB = null; private NMEAParser nmeaParser = null; private boolean doRun = true; private final Context cntxToastInternGNSSUpdate = this; final String[] perms = {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.INTERNET,}; private static final String INTENT_ACTION_GRANT_USB = BuildConfig.APPLICATION_ID + ".GRANT_USB"; private boolean bChange = true; private BlockingQueue rawSerialByteDataQueue = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // start intern GNSS and display stats on UI startInternGNSS(); // start extern GNSS and display stats on UI startExternGNSS(); } // From https://github.com/googlesamples/easypermissions @Override public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); // Forward results to EasyPermissions EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this); } private void startExternGNSS(){ rawSerialByteDataQueue = new LinkedBlockingQueue<>(); serialUSB = new SerialUSB(this, rawSerialByteDataQueue); if(serialUSB.findSerialDevice()){ serialUSB.connect(9600, 0); if (serialUSB.isConnected()){ nmeaParser = new NMEAParser(); nmeaParser.setReceiveByteStream(rawSerialByteDataQueue); } } } @AfterPermissionGranted(123) private void startInternGNSS() { if (EasyPermissions.hasPermissions(this, perms)) { // Already have permission, do the thing Toast.makeText(cntxToastInternGNSSUpdate, "Permission granted!", Toast.LENGTH_SHORT).show(); locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); } else { // Do not have permissions, request them now EasyPermissions.requestPermissions(this, "We require location access!", 123, perms); } } private void setEditTextLabel(final EditText v, final String str) { Runnable myRun = new Runnable() { public void run() { v.setText(str); } }; runOnUiThread(myRun); } @SuppressLint("MissingPermission") @Override protected void onResume() { super.onResume(); if (!EasyPermissions.hasPermissions(this, perms)) { // Dummy thread ... new Thread(new Runnable() { @Override public void run() { while (doRun) { Log.i("HAG", "Just do nothing ..."); try { sleep(2000); } catch (InterruptedException e) { e.printStackTrace(); } } } }).start(); } else { locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener); // Worker-Thread new Thread( new Runnable() { @Override public void run() { while (doRun) { if (locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER) != null) { setEditTextLabel((EditText) findViewById(R.id.interngnssLatNumber), String.format( "%.6f", locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER).getLatitude())); setEditTextLabel((EditText) findViewById(R.id.interngnssLongNumber), String.format( "%.6f", locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER).getLongitude())); setEditTextLabel((EditText) findViewById(R.id.interngnssAltitudeNumber), String.format( "%.2f", locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER).getAltitude()) + " m"); setEditTextLabel((EditText) findViewById(R.id.interngnssAccuracyNumber), String.format( "%.2f", locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER).getAccuracy()) + " m"); setEditTextLabel((EditText) findViewById(R.id.interngnssSatCountNumber), Integer.toString(locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER).getExtras().getInt("satellites"))); }else{ setEditTextLabel((EditText) findViewById(R.id.interngnssLatNumber), "no signal"); setEditTextLabel((EditText) findViewById(R.id.interngnssLongNumber), "no signal"); setEditTextLabel((EditText) findViewById(R.id.interngnssAltitudeNumber), "no signal"); setEditTextLabel((EditText) findViewById(R.id.interngnssAccuracyNumber), "no signal"); setEditTextLabel((EditText) findViewById(R.id.interngnssSatCountNumber),"no signal"); } if(serialUSB != null){ if(serialUSB.isConnected()){ nmeaParser.handleReceiveByteStream(); if (nmeaParser.checkFix() == true) { //System.out.println(parser.getLatitude() + " " + parser.getLongitude()); //System.out.println(parser.calcDistance(fixedPosLat, fixedPosLng)); //nmeaParser.getLatitude(); //nmeaParser.getLongitude(); Log.i("ExternGNSS", "Fix! Lat: " + String.valueOf(nmeaParser.getLatitude()) + " Lon: " + String.valueOf(nmeaParser.getLongitude())); // distance.add(nmeaParser.calcDistance(fixedPosLat, fixedPosLng)); // satCount.add(nmeaParser.getSatCount()); } } } runOnUiThread(new Runnable() { @Override public void run() { //Update } }); try { sleep(10000); } catch (InterruptedException e) { e.printStackTrace(); } } } }).start(); } } /** * Stop the updates when Activity is paused */ @Override protected void onPause() { super.onPause(); doRun = false; } LocationListener locationListener = new LocationListener() { @Override public void onLocationChanged(android.location.Location location) { Toast.makeText(cntxToastInternGNSSUpdate, "Internal GNSS updated", Toast.LENGTH_LONG).show(); } @Override // This callback will never be invoked on Android Q and above. public void onStatusChanged(String provider, int status, Bundle extras) { // Toast.makeText(mContext, "Status Changed", Toast.LENGTH_LONG).show(); } @Override public void onProviderEnabled(String provider) { } @Override public void onProviderDisabled(String provider) { } }; }