Android studio project, Button is not working

Issue

I'm currently doing my Locator project

but, in the process "press to get your location" is not working properly as I push it. it won't doing anything.

Here's the MainActivity code

package com.example.pc.locatorproject;

import android.Manifest;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.text.Html;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

public class MainActivity extends AppCompatActivity {
    TextView textView1, textView2, textView3, textView4, textView5;
    FusedLocationProviderClient fusedLocationProviderClient;
    Button btLocation;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btLocation = findViewById(R.id.bt_location);
        textView1 = findViewById(R.id.text_view1);
        textView2 = findViewById(R.id.text_view2);
        textView3 = findViewById(R.id.text_view3);
        textView4 = findViewById(R.id.text_view4);
        textView5 = findViewById(R.id.text_view5);

        fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);

        btLocation.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (ActivityCompat.checkSelfPermission(MainActivity.this
                        , Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED){
                    getLocation();
                }
                else {
                    ActivityCompat.requestPermissions(MainActivity.this
                            , new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 44);
                }
        }
    });
    }
    private void getLocation() {
        fusedLocationProviderClient.getLastLocation().addOnCompleteListener(new OnCompleteListener<Location>() {
            @Override
            public void onComplete(@NonNull Task<Location> task) {
                Location location = task.getResult();
                    if (location != null){
                        try {
                            Geocoder geocoder = new Geocoder(MainActivity.this, Locale.getDefault());
                            List<Address> addresses = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1 );
                            textView1.setText(Html.fromHtml("<font color='#6200EE'><B>Latitude :</b><br></font>" + addresses.get(0).getLatitude()));
                            textView2.setText(Html.fromHtml("<font color='#6200EE'><B>Longitude :</b><br></font>" + addresses.get(0).getLongitude()));
                            textView3.setText(Html.fromHtml("<font color='#6200EE'><B>Country Name :</b><br></font>" + addresses.get(0).getCountryName()));
                            textView4.setText(Html.fromHtml("<font color='#6200EE'><B>Locality :</b><br></font>" + addresses.get(0).getLocality()));
                            textView5.setText(Html.fromHtml("<font color='#6200EE'><B>Address :</b><br></font>" + addresses.get(0).getAddressLine(0)));
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    }
            });
        }
    }

Here's the XML code

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

    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:orientation="vertical"
    android:padding="16dp"
    android:layout_gravity="center_horizontal"

    tools:context=".MainActivity">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:id="@+id/bt_location"
        android:text="Press to get your location"
        />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="32dp">

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/text_view1"/>

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/text_view2"/>

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="16dp">

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/text_view3"/>

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/text_view4"/>

    </LinearLayout>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:id="@+id/text_view5"/>

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

    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:orientation="vertical"
    android:padding="16dp"
    android:layout_gravity="center_horizontal"

    tools:context=".MainActivity">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:id="@+id/bt_location"
        android:text="Press to get your location"
        />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="32dp">

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/text_view1"/>

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/text_view2"/>

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="16dp">

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/text_view3"/>

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/text_view4"/>

    </LinearLayout>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:id="@+id/text_view5"/>

</LinearLayout>

and here's the build.gradle code

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.3"

    defaultConfig {
        applicationId "com.example.pc.locatorproject"
        minSdkVersion 14
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        multiDexEnabled true

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.google.android.gms:play-services:12.0.1'
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation 'com.android.support:multidex:1.0.3'
}

When running properly I expected after pressing the "press to get your location" button. It would show 5 detailed information such as longitude, latitude, Addresses, CountryName, and locality. But it does not show up.

please, help me to make the "press to get your location" button worked.

Solution

Make sure to add the permission in manifest:

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

Devices that support run time permissions are devices that are api level 23 and higher, if you are testing on a device of lower version then the request is not triggered.

Answered By - Hasan Bou Taam