How can I get my current location in Android using GPS?

android android-location android-gps
SudeepaNoble picture SudeepaNoble · Sep 10, 2019 · Viewed 11.9k times · Source

I want to get my current location in the form of an address by GPS. I am using the android studio. It is saying that my application stops working. What is the error in it? Can someone help me to get out of this, please?

My Code in activity_main.xml file is

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 
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"
tools:context=".MainActivity">

<TextView
    android:id="@+id/text_view"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Hello World!"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

My code in MainActivity.java is

package com.example.showlatlong;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.TextView;

import java.util.List;
import java.util.Locale;

public class MainActivity extends AppCompatActivity {

Location gps_loc, network_loc, final_loc;
double longitude;
double latitude;
String userCountry, userAddress;


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

    TextView tv = findViewById(R.id.text_view);

    LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);


    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
            && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED
            && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_NETWORK_STATE) != PackageManager.PERMISSION_GRANTED) {

        return;
    }

    try {
        gps_loc = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        network_loc = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
    } catch (Exception e) {
        e.printStackTrace();
    }

    if (gps_loc != null) {
        final_loc = gps_loc;
        latitude = final_loc.getLatitude();
        longitude = final_loc.getLongitude();
    }
    else if (network_loc != null) {
        final_loc = network_loc;
        latitude = final_loc.getLatitude();
        longitude = final_loc.getLongitude();
    }
    else {
        latitude = 0.0;
        longitude = 0.0;
    }

     ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_NETWORK_STATE}, 1);



    try {

        Geocoder geocoder = new Geocoder(this, Locale.getDefault());
        List<Address> addresses = geocoder.getFromLocation(latitude, longitude, 1);
        if (addresses != null && addresses.size() > 0) {
            userCountry = addresses.get(0).getCountryName();
            userAddress = addresses.get(0).getAddressLine(0);
            tv.setText(userCountry + ", " + userAddress);
        }
        else {
            userCountry = "Unknown";
            tv.setText(userCountry);
        }

    } catch (Exception e) {
        e.printStackTrace();
    }

}

}

My code in manifest.xml is

<?xml version="1.0" encoding="utf-8"?>


<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

<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>

The entire code is this. It is opening the app and in less than a second, it is closing by throwing an error message that "app keeps stopping" on my android application. This is what I got in the logcat is

2019-09-11 12:58:45.344 15400-15400/com.example.showlatlong E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.showlatlong, PID: 15400
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.showlatlong/com.example.showlatlong.MainActivity}: android.view.InflateException: Binary XML file line #2: Binary XML file line #2: Error inflating class android.support.constraint.ConstraintLayout
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2723)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2784)
    at android.app.ActivityThread.-wrap12(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1523)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:163)
    at android.app.ActivityThread.main(ActivityThread.java:6238)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:933)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)
 Caused by: android.view.InflateException: Binary XML file line #2: Binary XML file line #2: Error inflating class android.support.constraint.ConstraintLayout
 Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.constraint.ConstraintLayout
 Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.constraint.ConstraintLayout" on path: DexPathList[[zip file "/data/app/com.example.showlatlong-1/base.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.showlatlong-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.example.showlatlong-1/lib/arm64, /system/lib64, /vendor/lib64]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
    at android.view.LayoutInflater.createView(LayoutInflater.java:613)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:812)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:752)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:499)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:430)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:377)
    at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:555)
    at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:161)
    at com.example.showlatlong.MainActivity.onCreate(MainActivity.java:29)
    at android.app.Activity.performCreate(Activity.java:6857)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2676)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2784)
    at android.app.ActivityThread.-wrap12(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1523)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:163)
    at android.app.ActivityThread.main(ActivityThread.java:6238)
    at java.lang.reflect.Method.invoke(Native Method)
    at 


 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit. 
 java:933)
 2019-09-11 12:58:45.344 15400-15400/com.example.showlatlong  
 E/AndroidRuntime:     
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)

Answer

Suri picture Suri · Sep 10, 2019

In your AndroidManifest.xml, you have to put this above or below the application tag. 

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

Because you did not show your code what you have been doing, so I have no clue how to resolve your problems. But the below code is the code I use for my application to get the current country of users.

activity_main.xml

    <?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

MainActivity.java

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import java.util.List;
import java.util.Locale;

public class MainActivity extends AppCompatActivity {

        Location gps_loc;
        Location network_loc;
        Location final_loc;
        double longitude;
        double latitude;
        String userCountry, userAddress;

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


        TextView tv = findViewById(R.id.text_view);

        LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);


        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED
                && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_NETWORK_STATE) != PackageManager.PERMISSION_GRANTED) {

            return;
        }

        try {

            gps_loc = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
            network_loc = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

        } catch (Exception e) {
            e.printStackTrace();
        }

        if (gps_loc != null) {
            final_loc = gps_loc;
            latitude = final_loc.getLatitude();
            longitude = final_loc.getLongitude();
        }
        else if (network_loc != null) {
            final_loc = network_loc;
            latitude = final_loc.getLatitude();
            longitude = final_loc.getLongitude();
        }
        else {
            latitude = 0.0;
            longitude = 0.0;
        }


        ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_NETWORK_STATE}, 1);

        try {

            Geocoder geocoder = new Geocoder(this, Locale.getDefault());
            List<Address> addresses = geocoder.getFromLocation(latitude, longitude, 1);
            if (addresses != null && addresses.size() > 0) {
                userCountry = addresses.get(0).getCountryName();
                userAddress = addresses.get(0).getAddressLine(0);
                tv.setText(userCountry + ", " + userAddress);
            }
            else {
                userCountry = "Unknown";
                tv.setText(userCountry);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

You will have to understand this code. One more thing, if you run your application on an emulator, it will keep showing "United States" or more specifically, Googleplex's location. Just run it on a real device to make it return your current location.

To return your current location other than just country itself, you can replace the

addresses.get(0).getCountryName()

with something like

addresses.get(0).getPostalCode()

or

addresses.get(0).getAdminArea()

and so on.

You can too concatenate the values as a string to show your current location in detail.

Please have a look at this

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