This example demonstrates how do I find the latitude and longitude from address in android.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<RelativeLayout xmlns:android="https://schemas.android.com/apk/res/android" xmlns:tools="https://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="16sp" tools:context=".MainActivity"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Enter Address" android:id="@+id/textViewAddress" android:textAppearance="?android:attr/textAppearanceMedium" android:layout_alignParentStart="true" /> <EditText android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/editTextAddress" android:layout_alignParentTop="true" android:layout_toEndOf="@+id/textViewAddress" android:singleLine="true" android:text="" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Show Lat/Long" android:id="@+id/addressButton" android:layout_below="@+id/textViewAddress" android:layout_toEndOf="@+id/textViewAddress" android:layout_marginTop="50dp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textAppearance="?android:attr/textAppearanceLarge" android:text="" android:id="@+id/latLongTV" android:layout_centerVertical="true" android:layout_toEndOf="@+id/textViewAddress" /> </RelativeLayout>
Step 3 − Add the following code to src/MainActivity.java
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
Button addressButton;
TextView textViewAddress;
TextView textViewLatLong;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textViewAddress = findViewById(R.id.textViewAddress);
textViewLatLong = findViewById(R.id.latLongTV);
addressButton = findViewById(R.id.addressButton);
addressButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
EditText editText = findViewById(R.id.editTextAddress);
String address = editText.getText().toString();
GeoCodingLocation locationAddress = new GeoCodingLocation();
locationAddress.getAddressFromLocation(address, getApplicationContext(), new
GeoCoderHandler());
}
});
}
private class GeoCoderHandler extends Handler {
@Override
public void handleMessage(Message message) {
String locationAddress;
switch (message.what) {
case 1:
Bundle bundle = message.getData();
locationAddress = bundle.getString("address");
break;
default:
locationAddress = null;
}
textViewLatLong.setText(locationAddress);
}
}
}Step 4 − Create a java class (GeoCodeLocation.java) and add the following code −
import android.content.Context;
import android.location.Address;
import android.location.Geocoder;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import java.io.IOException;
import java.util.List;
import java.util.Locale;
class GeoCodeLocation {
private static final String TAG = "GeoCodeLocation";
public static void getAddressFromLocation(final String
locationAddress,
final Context
context, final Handler handler) {
Thread thread = new Thread() {
@Override
public void run() {
Geocoder geocoder = new Geocoder(context,
Locale.getDefault());
String result = null;
try {
List addressList = geocoder.getFromLocationName(locationAddress, 1);
if (addressList != null && addressList.size() > 0) {
Address address = (Address)
addressList.get(0);
StringBuilder sb = new StringBuilder();
sb.append(address.getLatitude()).append("\n");
sb.append(address.getLongitude()).append("\n");
result = sb.toString();
}
} catch (IOException e) {
Log.e(TAG, "Unable to connect to Geocoder", e);
} finally {
Message message = Message.obtain();
message.setTarget(handler);
if (result != null) {
message.what = 1;
Bundle bundle = new Bundle();
result = "Address: " + locationAddress +
"\n\nLatitude and Longitude
:\n" + result;
bundle.putString("address", result);
message.setData(bundle);
} else {
message.what = 1;
Bundle bundle = new Bundle();
result = "Address: " + locationAddress +
"\n Unable to get Latitude and
Longitude for this address location.";
bundle.putString("address", result);
message.setData(bundle);
}
message.sendToTarget();
}
}
};
thread.start();
}
}Step 5 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="https://schemas.android.com/apk/res/android" package="app.com.sample"> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.INTERNET" /> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −
