first build

app/build.gradle

@@ -26,18 +26,22 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
+    buildFeatures{
+        viewBinding =true
+    }
     kotlinOptions {
         jvmTarget = '1.8'
     }
 }
 
 dependencies {
-
-    implementation 'androidx.core:core-ktx:1.7.0'
-    implementation 'androidx.appcompat:appcompat:1.4.2'
+    implementation 'com.google.android.gms:play-services-location:20.0.0'
+    implementation 'androidx.core:core-ktx:1.8.0'
+    implementation 'androidx.appcompat:appcompat:1.5.0'
     implementation 'com.google.android.material:material:1.6.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
 }

app/src/main/AndroidManifest.xml

@@ -3,6 +3,10 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.sudo.androidd20">
 
+    <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" />
+
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"

app/src/main/java/com/sudo/androidd20/MainActivity.kt

@@ -1,11 +1,69 @@
 package com.sudo.androidd20
 
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.content.pm.PackageManager
+import android.os.BatteryManager
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import android.widget.Toast
+import androidx.core.app.ActivityCompat
+import com.google.android.gms.location.FusedLocationProviderClient
+import com.google.android.gms.location.LocationServices
+import com.sudo.androidd20.databinding.ActivityMainBinding
 
 class MainActivity : AppCompatActivity() {
+    private lateinit var binding: ActivityMainBinding
+    private lateinit var fusedLocationProviderClient: FusedLocationProviderClient
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this)
+        binding.btnLocation.setOnClickListener {
+            fetchLocation()
+        }
+        registerReceiver(this.mBatteryReceiver, IntentFilter(Intent.ACTION_BATTERY_CHANGED))
+        setContentView(binding.root)
+    }
+
+
+    private val mBatteryReceiver: BroadcastReceiver = object : BroadcastReceiver() {
+        override fun onReceive(p0: Context?, p1: Intent?) {
+            val level = p1?.getIntExtra(BatteryManager.EXTRA_LEVEL, -1)
+            val batteryShow = "Battery Status: $level %"
+            binding.txtBatteryPercentage.text = batteryShow
+        }
+
+    }
+
+
+    private fun fetchLocation() {
+        val task = fusedLocationProviderClient.lastLocation
+        if (ActivityCompat.checkSelfPermission(
+                this,
+                android.Manifest.permission.ACCESS_FINE_LOCATION
+            ) !=
+            PackageManager.PERMISSION_GRANTED &&
+            ActivityCompat.checkSelfPermission(
+                this,
+                android.Manifest.permission.ACCESS_COARSE_LOCATION
+            ) !=
+            PackageManager.PERMISSION_GRANTED
+        ) {
+            ActivityCompat.requestPermissions(
+                this,
+                arrayOf(android.Manifest.permission.ACCESS_FINE_LOCATION),
+                1
+            )
+            return
+        }
+        task.addOnSuccessListener {
+                val locationStr = "Latitude: ${it.latitude} Longitude:${it.longitude}"
+                if (it != null)
+                    binding.txtLocation.text = locationStr
+        }
+
     }
 }

app/src/main/res/layout/activity_main.xml

@@ -1,18 +1,37 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<RelativeLayout 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">
 
+    <Button
+        android:id="@+id/btnLocation"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerHorizontal="true"
+        android:layout_centerVertical="true"
+        android:text="@string/button" />
+
+    <TextView
+        android:id="@+id/txtLocation"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/textview"
+        android:textSize="30sp"
+        android:layout_below="@+id/btnLocation"
+        android:layout_centerHorizontal="true"
+        />
     <TextView
+        android:id="@+id/txtBatteryPercentage"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        android:text="@string/textview"
+        android:textSize="30sp"
+        android:layout_below="@+id/txtLocation"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="50dp"
+        />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+</RelativeLayout>

app/src/main/res/values/strings.xml

@@ -1,3 +1,5 @@
 <resources>
     <string name="app_name">AndroidD20</string>
+    <string name="button">Button</string>
+    <string name="textview">TextView</string>
 </resources>