Get Current Location coordinates/GPS coordinates and get City name
I have already tested this app on my android phone and one more thing when you move line 10-20 meter you will get the new coordinates.
What is app does?
- check gps is enable or disable
- Get gps coordinates
- Get the current city name.
-------------------------------------------
App Name: GetMyCurrentLocation
Package Name: com.example.hemant.may_i_help_u
Android SDK: Android SDK 2.3.3 / API 10
Default Activity Name: MainActivity
-------------------------------------------
package com.example.hemant.may_i_help_u;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.Toast;
import java.io.IOException;
import java.util.List;
import java.util.Locale;
public class MainActivity extends Activity implements OnClickListener {
private LocationManager locationMangaer=null;
private LocationListener locationListener=null;
private Button btnGetLocation = null;
private EditText editLocation = null;
private ProgressBar pb =null;
private static final String TAG = "Debug";
private Boolean flag = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//if you want to lock screen for always Portrait mode
setRequestedOrientation(ActivityInfo
.SCREEN_ORIENTATION_PORTRAIT);
pb = (ProgressBar) findViewById(R.id.progressBar1);
pb.setVisibility(View.INVISIBLE);
editLocation = (EditText) findViewById(R.id.editTextLocation);
btnGetLocation = (Button) findViewById(R.id.btnLocation);
btnGetLocation.setOnClickListener(this);
locationMangaer = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
}
@Override
public void onClick(View v) {
flag = displayGpsStatus();
if (flag) {
Log.v(TAG, "onClick");
editLocation.setText("Please!! move your device to"+
" see the changes in coordinates."+"\nWait..");
pb.setVisibility(View.VISIBLE);
locationListener = new MyLocationListener();
if ( Build.VERSION.SDK_INT >= 23 &&
ContextCompat.checkSelfPermission( MainActivity.this, android.Manifest.permission.ACCESS_FINE_LOCATION ) != PackageManager.PERMISSION_GRANTED &&
ContextCompat.checkSelfPermission( MainActivity.this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return ;
}
locationMangaer.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000, 10, locationListener);
} else {
alertbox("Gps Status!!", "Your GPS is: OFF");
}
}
/*----Method to Check GPS is enable or disable ----- */
private Boolean displayGpsStatus() {
LocationManager lm = (LocationManager)MainActivity.this.getSystemService(Context.LOCATION_SERVICE);
boolean gps_enabled = false;
try {
gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
} catch(Exception ex) {}
return gps_enabled;
}
/*----------Method to create an AlertBox ------------- */
protected void alertbox(String title, String mymessage) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Your Device's GPS is Disable")
.setCancelable(false)
.setTitle("** Gps Status **")
.setPositiveButton("Gps On",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// finish the current activity
// AlertBoxAdvance.this.finish();
Intent myIntent = new Intent(
Settings.ACTION_SECURITY_SETTINGS);
startActivity(myIntent);
dialog.cancel();
}
})
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// cancel the dialog box
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
/*----------Listener class to get coordinates ------------- */
private class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
editLocation.setText("");
pb.setVisibility(View.INVISIBLE);
Toast.makeText(getBaseContext(),"Location changed : Lat: " +
loc.getLatitude()+ " Lng: " + loc.getLongitude(),
Toast.LENGTH_SHORT).show();
String longitude = "Longitude: " +loc.getLongitude();
Log.v(TAG, longitude);
String latitude = "Latitude: " +loc.getLatitude();
Log.v(TAG, latitude);
/*----------to get City-Name from coordinates ------------- */
String cityName=null;
Geocoder gcd = new Geocoder(getBaseContext(),
Locale.getDefault());
List<Address> addresses;
try {
addresses = gcd.getFromLocation(loc.getLatitude(), loc
.getLongitude(), 1);
if (addresses.size() > 0)
System.out.println(addresses.get(0).getLocality());
cityName=addresses.get(0).getLocality();
} catch (IOException e) {
e.printStackTrace();
}
String s = longitude+"\n"+latitude +
"\n\nMy Currrent City is: "+cityName;
editLocation.setText(s);
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider,
int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:weightSum="1">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Get Current Location and City Name"
android:layout_weight="0.20"
android:gravity="center"
android:textSize="20sp" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:id="@+id/editTextLocation"
android:editable="false">
<requestFocus></requestFocus>
</EditText>
<LinearLayout
android:id="@+id/layButtonH"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:gravity="center"
android:layout_weight="0.15">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Get Location"
android:id="@+id/btnLocation"></Button>
</LinearLayout>
<LinearLayout
android:id="@+id/layloadingH"
android:layout_height="wrap_content"
android:layout_weight="0.20"
android:layout_width="fill_parent"
android:gravity="center">
<ProgressBar
android:layout_width="wrap_content"
android:id="@+id/progressBar1"
android:layout_height="wrap_content"></ProgressBar>
</LinearLayout>
</LinearLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="com.rdc"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION">
</uses-permission>
<application
android:icon="@drawable/icon"
android:label="@string/app_name">
<activity
android:name=".GetCurrentLocation"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
The output Screen will be like this..
private Button btnGetLocation = null;
private EditText editLocation = null;
private ProgressBar pb =null;
private static final String TAG = "Debug";
private Boolean flag = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//if you want to lock screen for always Portrait mode
setRequestedOrientation(ActivityInfo
.SCREEN_ORIENTATION_PORTRAIT);
pb = (ProgressBar) findViewById(R.id.progressBar1);
pb.setVisibility(View.INVISIBLE);
editLocation = (EditText) findViewById(R.id.editTextLocation);
btnGetLocation = (Button) findViewById(R.id.btnLocation);
btnGetLocation.setOnClickListener(this);
locationMangaer = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
}
@Override
public void onClick(View v) {
flag = displayGpsStatus();
if (flag) {
Log.v(TAG, "onClick");
editLocation.setText("Please!! move your device to"+
" see the changes in coordinates."+"\nWait..");
pb.setVisibility(View.VISIBLE);
locationListener = new MyLocationListener();
if ( Build.VERSION.SDK_INT >= 23 &&
ContextCompat.checkSelfPermission( MainActivity.this, android.Manifest.permission.ACCESS_FINE_LOCATION ) != PackageManager.PERMISSION_GRANTED &&
ContextCompat.checkSelfPermission( MainActivity.this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return ;
}
locationMangaer.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000, 10, locationListener);
} else {
alertbox("Gps Status!!", "Your GPS is: OFF");
}
}
/*----Method to Check GPS is enable or disable ----- */
private Boolean displayGpsStatus() {
LocationManager lm = (LocationManager)MainActivity.this.getSystemService(Context.LOCATION_SERVICE);
boolean gps_enabled = false;
try {
gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
} catch(Exception ex) {}
return gps_enabled;
}
/*----------Method to create an AlertBox ------------- */
protected void alertbox(String title, String mymessage) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Your Device's GPS is Disable")
.setCancelable(false)
.setTitle("** Gps Status **")
.setPositiveButton("Gps On",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// finish the current activity
// AlertBoxAdvance.this.finish();
Intent myIntent = new Intent(
Settings.ACTION_SECURITY_SETTINGS);
startActivity(myIntent);
dialog.cancel();
}
})
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// cancel the dialog box
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
/*----------Listener class to get coordinates ------------- */
private class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
editLocation.setText("");
pb.setVisibility(View.INVISIBLE);
Toast.makeText(getBaseContext(),"Location changed : Lat: " +
loc.getLatitude()+ " Lng: " + loc.getLongitude(),
Toast.LENGTH_SHORT).show();
String longitude = "Longitude: " +loc.getLongitude();
Log.v(TAG, longitude);
String latitude = "Latitude: " +loc.getLatitude();
Log.v(TAG, latitude);
/*----------to get City-Name from coordinates ------------- */
String cityName=null;
Geocoder gcd = new Geocoder(getBaseContext(),
Locale.getDefault());
List<Address> addresses;
try {
addresses = gcd.getFromLocation(loc.getLatitude(), loc
.getLongitude(), 1);
if (addresses.size() > 0)
System.out.println(addresses.get(0).getLocality());
cityName=addresses.get(0).getLocality();
} catch (IOException e) {
e.printStackTrace();
}
String s = longitude+"\n"+latitude +
"\n\nMy Currrent City is: "+cityName;
editLocation.setText(s);
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider,
int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:weightSum="1">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Get Current Location and City Name"
android:layout_weight="0.20"
android:gravity="center"
android:textSize="20sp" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:id="@+id/editTextLocation"
android:editable="false">
<requestFocus></requestFocus>
</EditText>
<LinearLayout
android:id="@+id/layButtonH"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:gravity="center"
android:layout_weight="0.15">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Get Location"
android:id="@+id/btnLocation"></Button>
</LinearLayout>
<LinearLayout
android:id="@+id/layloadingH"
android:layout_height="wrap_content"
android:layout_weight="0.20"
android:layout_width="fill_parent"
android:gravity="center">
<ProgressBar
android:layout_width="wrap_content"
android:id="@+id/progressBar1"
android:layout_height="wrap_content"></ProgressBar>
</LinearLayout>
</LinearLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="com.rdc"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION">
</uses-permission>
<application
android:icon="@drawable/icon"
android:label="@string/app_name">
<activity
android:name=".GetCurrentLocation"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
The output Screen will be like this..
