How to calculate distance every 15 sec with using GPS heavy accuracy
I get the GPS location 3 way like Map.getMyLocation().getLatitude(), locationManager and mGoogleApiClient.
but these are not helped for me for calculating distance every 15 sec.
problem is location latitude and longitude are not accurately i.e I am walking like 1-2 meter with using these way distance calculation. calculating distance is 400 m-600 meter sometimes show 1 km also. GPS location variate like 20 meters to 600 meters. Please give some better idea about how to get my location heavy accuracy with calculating distance every 15 sec in android.
this is my code
//get current location
try {
locationManager = (LocationManager) getApplicationContext()
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled) {
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
old_latitude = location.getLatitude();
old_longitude = location.getLongitude();
}
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if (locationManager != null) {
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
old_latitude = location.getLatitude();
old_longitude = location.getLongitude();
Log.d("GPS Enabled", "GPS Enabled");
}
}
}
}
}
// Toast.makeText(this, "Current location"+current_latitude+","+current_longitude , Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
}
/* GPSTracker gpsTracker = new GPSTracker(Activity_Map_Advance_Tracking.this);
if (gpsTracker.getIsGPSTrackingEnabled()) {
old_latitude=gpsTracker.latitude;
old_longitude=gpsTracker.longitude;
}*/
old_latitude = mMap.getMyLocation().getLatitude();
old_longitude = mMap.getMyLocation().getLongitude();
if (trip_status.equals("trip"))
ha.postDelayed(new Runnable() {
@Override
public void run() {
//get current location
try {
locationManager = (LocationManager) getApplicationContext()
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled) {
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
new_latitude = location.getLatitude();
new_longitude = location.getLongitude();
}
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if (locationManager != null) {
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
new_latitude = location.getLatitude();
new_longitude = location.getLongitude();
Log.d("GPS Enabled", "GPS Enabled");
}
}
}
}
}
// Toast.makeText(this, "Current location"+current_latitude+","+current_longitude , Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
}
// check if GPS enabled
/* GPSTracker gpsTracker = new GPSTracker(Activity_Map_Advance_Tracking.this);
if (gpsTracker.getIsGPSTrackingEnabled()) {
new_latitude = gpsTracker.latitude;
new_longitude =gpsTracker.longitude;
}*/
new_latitude = mMap.getMyLocation().getLatitude();
new_longitude = mMap.getMyLocation().getLongitude();
double GPS_jump = 0.000100;
if (Math.abs(old_latitude - new_latitude) < GPS_jump && Math.abs(old_longitude - new_longitude) < GPS_jump) {
waiting_sec = waiting_sec + 15;
if (waiting_sec >= (waiting_time * 60)) {
if (wait == 0) {
waitng_charge = (waiting_amnt_per_sec * waiting_sec) + waitng_charge;
wait = 15;
//waiting_sec=0;
} else {
waitng_charge = (waiting_amnt_per_sec * wait) + waitng_charge;
}
}
// total_distance=meterDistanceBetweenPoints(13.020876, 80.222541,13.021301, 80.222881)+total_distance;
// client_info.setText("TOTAL DISTANCE:"+total_distance/1000);
System.out.println("vehicle not move" + Math.abs((float) old_latitude - (float) new_latitude) + "," + Math.abs((float) old_longitude - (float) new_longitude));
Toast.makeText(Activity_Map_Advance_Tracking.this, "vehicle not move" + Math.abs((float) old_latitude - (float) new_latitude) + "," + Math.abs((float) old_longitude - (float) new_longitude), Toast.LENGTH_LONG).show();
// assuming doubles are equals
} else {
System.out.println("vehicle moved" + Math.abs((float) old_latitude - (float) new_latitude) + "," + Math.abs((float) old_longitude - (float) new_longitude));
if ((waiting_sec) >= (waiting_time * 60)) {
waitng_charge = waiting_amnt_per_sec + waitng_charge;
}
total_distance = meterDistanceBetweenPoints(old_latitude, old_longitude, new_latitude, new_longitude) + total_distance;
waiting_sec = 0;
wait = 0;
Toast.makeText(Activity_Map_Advance_Tracking.this, "vehicle moved" + Math.abs((float) old_latitude - (float) new_latitude) + "," + Math.abs((float) old_longitude - (float) new_longitude), Toast.LENGTH_LONG).show();
Toast.makeText(Activity_Map_Advance_Tracking.this, "****TOTAL DISTANCE*****->" + total_distance, Toast.LENGTH_LONG).show();
client_info.setText("TOTAL DISTANCE:" + total_distance);
}
delay_sec = delay_sec + 15;
System.out.println("After " + delay_sec + " sec \n waiting sec" + waiting_sec + " sec\n waitng charge" + waitng_charge + "rs \n currunt lat and lng" + new_latitude + " , " + new_longitude + "" +
"\n___old lat lng" + old_latitude + " , " + old_longitude);
Toast.makeText(Activity_Map_Advance_Tracking.this, "After " + delay_sec + " sec \n waiting sec" + waiting_sec + " sec\n waitng charge" + waitng_charge + "rs \n currunt lat and lng" + new_latitude + " , " + new_longitude + "" +
"\n___old lat lng" + old_latitude + " , " + old_longitude + ", \ntotal distance: " + total_distance, Toast.LENGTH_LONG).show();
old_latitude = new_latitude;
old_longitude = new_longitude;
//call function
ha.postDelayed(this, 15000);
}
}, 15000);
this is my distance calculation method but this method is not issue
private float meterDistanceBetweenPoints(double lat_a, double lng_a, double lat_b, double lng_b) {
/*Location locationA = new Location("point A");
locationA.setLatitude(lat_a);
locationA.setLongitude(lng_a);
Location locationB = new Location("point B");
locationB.setLatitude(lat_b);
locationB.setLongitude(lng_b);
float distance = locationA.distanceTo(locationB);*/
double earthRadius = 6371000; //meters
double dLat = Math.toRadians(lat_b - lat_a);
double dLng = Math.toRadians(lng_b - lng_a);
double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
Math.cos(Math.toRadians(lat_a)) * Math.cos(Math.toRadians(lat_b)) *
Math.sin(dLng / 2) * Math.sin(dLng / 2);
double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
float dist = (float) (earthRadius * c);
System.out.println("**********this is distance calculation**********" + dist);
return dist;
}
Solution
please check this using like
criteria.setPowerRequirement(Criteria.POWER_HIGH);
MainActivity.java
public class MainActivity extends AppCompatActivity {
LocationManager locationManager;
Criteria criteria;
String provider;
Location location;
double old_latitude; // latitude
double old_longitude; // longitude
TextView distance;
double new_latitude; // latitude
double new_longitude; // longitude
float total_distance = 0.0f;
String details;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
distance = (TextView) findViewById(R.id.distance);
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setPowerRequirement(Criteria.POWER_HIGH);
provider = locationManager.getBestProvider(criteria, true);
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
location = locationManager.getLastKnownLocation(provider);
try {
old_latitude = location.getLatitude();
old_longitude = location.getLongitude();
} catch (Exception e) {
}
locationManager.requestLocationUpdates(provider, 15000, 1, new LocationListener() {
@Override
public void onLocationChanged(Location location) {
if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
location = locationManager.getLastKnownLocation(provider);
new_latitude = location.getLatitude();
new_longitude = location.getLongitude();
total_distance = meterDistanceBetweenPoints(old_latitude, old_longitude, new_latitude, new_longitude) + total_distance;
if (details == null) {
details = "current location:" + new_latitude + ", " + new_longitude;
details = details + "\n" + "old location:" + old_latitude + ", " + old_longitude;
details = details + "\n" + "\n" + "total distance:" + total_distance + " m";
details = details + "\n" + "----------------------------------------------" + "\n";
} else {
details = details + "\n" + "current location:" + new_latitude + ", " + new_longitude;
details = details + "\n" + "old location:" + old_latitude + ", " + old_longitude;
details = details + "\n" + "\n" + "total distance:" + total_distance + " m";
details = details + "\n" + "----------------------------------------------" + "\n";
}
distance.setText(details);
old_latitude = new_latitude;
old_longitude = new_longitude;
System.out.println("**********this is LocationChanged**********" + 15000);
Toast.makeText(MainActivity.this, "current location" + new_latitude + new_longitude, Toast.LENGTH_LONG).show();
Toast.makeText(MainActivity.this, "old location" + old_latitude + old_longitude, Toast.LENGTH_LONG).show();
Toast.makeText(MainActivity.this, "LocationChanged" + Math.abs((float) old_latitude - (float) new_latitude) + "," + Math.abs((float) old_longitude - (float) new_longitude), Toast.LENGTH_LONG).show();
}
@Override
public void onStatusChanged(String s, int i, Bundle bundle) {
System.out.println("**********this is StatusChanged**********" + 15000);
Toast.makeText(MainActivity.this, "StatusChanged" + Math.abs((float) old_latitude - (float) new_latitude) + "," + Math.abs((float) old_longitude - (float) new_longitude), Toast.LENGTH_LONG).show();
}
@Override
public void onProviderEnabled(String s) {
System.out.println("**********this is ProviderEnabled**********" + 15000);
Toast.makeText(MainActivity.this, "ProviderDisabled" + Math.abs((float) old_latitude - (float) new_latitude) + "," + Math.abs((float) old_longitude - (float) new_longitude), Toast.LENGTH_LONG).show();
}
@Override
public void onProviderDisabled(String s) {
System.out.println("**********this is ProviderDisabled**********" + 15000);
Toast.makeText(MainActivity.this, "ProviderDisabled" + Math.abs((float) old_latitude - (float) new_latitude) + "," + Math.abs((float) old_longitude - (float) new_longitude), Toast.LENGTH_LONG).show();
}
});
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
@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);
}
private float meterDistanceBetweenPoints(double lat_a, double lng_a, double lat_b, double lng_b) {
double earthRadius = 6371000; //meters
double dLat = Math.toRadians(lat_b - lat_a);
double dLng = Math.toRadians(lng_b - lng_a);
double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
Math.cos(Math.toRadians(lat_a)) * Math.cos(Math.toRadians(lat_b)) *
Math.sin(dLng / 2) * Math.sin(dLng / 2);
double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
float dist = (float) (earthRadius * c);
Toast.makeText(MainActivity.this, "calculated distance" + dist + "," + Math.abs((float) old_longitude - (float) new_longitude), Toast.LENGTH_LONG).show();
System.out.println("**********this is distance calculation**********" + dist);
return dist;
}}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?><android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.rmadeandroid.lcation_change_listioner.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_main" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="@dimen/fab_margin"
app:srcCompat="@android:drawable/ic_dialog_email" /</android.support.design.widget.CoordinatorLayout>
content_main.xml
<?xml version="1.0" encoding="utf-8"?><ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.rmadeandroid.lcation_change_listioner.MainActivity"
tools:showIn="@layout/activity_main"><RelativeLayout
android:id="@+id/content_main"
android:layout_width="match_parent"
android:layout_height="match_parent"><TextView
android:id="@+id/distance"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="device not move" /></RelativeLayout></ScrollView>
permission in manifest
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
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