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***ali***

ابتدا در Manifest این کدها رو اضافه می کنیم که مربوط به سطح دسترسی هستش:

کد: 

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

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

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

این بخش هم مربوط به activity_main.xml هست:

کد: 

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

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/activity_main"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context="exceptionbound.com.gpslocation.MainActivity">

    <ScrollView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_alignParentEnd="true"

        android:layout_alignParentRight="true"

        android:layout_below="@+id/button">

        <TextView

            android:id="@+id/textView"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:layout_alignParentLeft="true"

            android:layout_alignParentStart="true"

            android:layout_below="@+id/button"

            android:gravity="center"

            android:text="Coordinates: "

            android:textSize="30sp" />

    </ScrollView>

    <Button

        android:id="@+id/button"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_centerHorizontal="true"

        android:layout_centerVertical="true"

        android:text="Request Location" />

</RelativeLayout>

و این بخش هم در نهایت مربوط به MainActivity.java می باشد:

کد: 

package exceptionbound.com.gpslocation;

import android.Manifest;

import android.content.Intent;

import android.content.pm.PackageManager;

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.annotation.NonNull;

import android.support.annotation.Nullable;

import android.support.v4.app.ActivityCompat;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private Button button;

    private TextView textView;

    private LocationManager locationManager;

    private LocationListener listener;

    @Override

    protected void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        textView = (TextView) findViewById(R.id.textView);

        button = (Button) findViewById(R.id.button);

        locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

        listener = new LocationListener() {

            @Override

            public void onLocationChanged(Location location) {

                textView.append("n " + location.getLongitude() + " " + location.getLatitude());

            }

            @Override

            public void onStatusChanged(String s, int i, Bundle bundle) {

            }

            @Override

            public void onProviderEnabled(String s) {

            }

            @Override

            public void onProviderDisabled(String s) {

                Intent i = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);

                startActivity(i);

            }

        };

        configure_button();

    }

    @Override

    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, 

                                           @NonNull int[] grantResults) {

        switch (requestCode) {

            case 10:

                configure_button();

                break;

            default:

                break;

        }

    }

    void configure_button() {

        // first check for permissions

        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != 

                PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, 

                Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

                requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE_LOCATION, 

                        Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.INTERNET}

                        , 10);

            }

            return;

        }

        // this code won'textView execute IF permissions are not allowed, because in the line above there is return statement.

        button.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View view) {

                //noinspection MissingPermission

                locationManager.requestLocationUpdates("gps", 5000, 0, listener);

            }

        });

    }

}

بعد هم رانش کنین و حالشو ببرین.