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This example demonstrates how do I use AlarmManager 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. Step 3 − Add the following code to src/MainActivity.javaimport android.app.AlarmManager import android.app.PendingIntent import android.content.BroadcastReceiver import android.content.Context import android.content.Intent import android.os.Build import android.os.Bundle import android.util.Log import android.widget.Button import android.widget.TimePicker import android.widget.Toast import androidx.appcompat.app.AppCompatActivity import java.util.* class MainActivity : AppCompatActivity() { lateinit var btnSetAlarm: Button lateinit ... Read More
This example demonstrates how to send an object from one Android Activity to another using Intents in Kotlin.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. Step 3 − Add the following code to src/MainActivity.ktimport android.content.Intent import android.os.Bundle import android.widget.Button import android.widget.EditText import androidx.appcompat.app.AppCompatActivity import java.io.Serializable class MainActivity : AppCompatActivity() { lateinit var editText: EditText lateinit var button: Button override fun onCreate(savedInstanceState: Bundle?) { ... Read More
This example demonstrates how to check internet connection availability and the network type on Android using Kotlin.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. Step 3 − Add the following code to src/MainActivity.ktimport android.content.Context import android.net.ConnectivityManager import android.os.Bundle import android.widget.TextView import android.widget.Toast import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var textView: TextView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) ... Read More
This example demonstrates how to load an ImageView by URL on Android using kotlin.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. Step 3 − Add the following code to src/MainActivity.ktimport android.annotation.SuppressLint import android.graphics.Bitmap import android.graphics.BitmapFactory import android.os.AsyncTask import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.util.Log import android.widget.ImageView import android.widget.Toast class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) ... Read More
This example demonstrates how to pass an object from one activity to another on Android using Kotlin.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. Step 3 − Add the following code to src/MainActivity.ktimport android.content.Intent import android.os.Bundle import android.widget.Button import androidx.appcompat.app.AppCompatActivity import java.io.Serializable; class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) title = "KotlinApp" ... Read More
This example demonstrates how to get fling gesture detection working in an Android App using Kotlin.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. Step 3 − Add the following code to src/MainActivity.ktimport android.os.Bundle import android.view.GestureDetector import android.view.MotionEvent import android.widget.Toast import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity(), GestureDetector.OnGestureListener{ lateinit var gestureDetector: GestureDetector override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) title ... Read More
This example demonstrates how to get the current GPS location programmatically on Android using Kotlin.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. Step 3 − Add the following code to src/MainActivity.ktimport android.Manifest import android.content.Context import android.content.pm.PackageManager import android.location.Location import android.location.LocationListener import android.location.LocationManager import android.os.Bundle import android.widget.Button import android.widget.TextView import android.widget.Toast import androidx.appcompat.app.AppCompatActivity import androidx.core.app.ActivityCompat import androidx.core.content.ContextCompat class MainActivity : AppCompatActivity(), LocationListener { private lateinit var locationManager: LocationManager ... Read More
This example demonstrates how to get the user's current location on Android using Kotlin.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Add the following dependency in Gradleimplementation 'com.google.android.gms:play-services-location:17.0.0'Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.ktimport android.Manifest import android.content.Intent import android.content.pm.PackageManager import android.location.Geocoder import android.location.Location import android.os.Bundle import android.os.Handler import android.os.ResultReceiver import android.util.Log import android.widget.TextView import android.widget.Toast import androidx.appcompat.app.AppCompatActivity import androidx.core.app.ActivityCompat import androidx.core.content.ContextCompat import com.google.android.gms.location.* class MainActivity ... Read More
This example demonstrates how to declare global variables on Android using Kotlin.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. Step 3 − Add the following code to src/MainActivity.ktimport android.os.Bundle import android.widget.TextView import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var textView: TextView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) title = "KotlinApp" textView = findViewById(R.id.text) ... Read More
This example demonstrates how to get screen dimensions in pixels on the Android App using Kotlin.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. Step 3 − Add the following code to src/MainActivity.ktimport android.os.Bundle import android.util.DisplayMetrics import android.view.WindowManager import android.widget.TextView import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var tvHeight: TextView lateinit var tvWidth: TextView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) ... Read More