Found 417 Articles for Kotlin

This example demonstrates how to make an ImageView with rounded corners on 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.Example     Step 3 − Add the following code to src/MainActivity.ktExampleimport android.graphics.* import android.graphics.drawable.BitmapDrawable import android.os.Bundle import android.widget.ImageView import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() {    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       title = "KotlinApp"       val imageView ... Read More

This example demonstrates how to enable or disable the GPS programmatically on 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 &minsu; Add the following code to res/layout/activity_main.xml.Example             Step 3 − Add the following code to src/MainActivity.ktimport android.content.Context import android.content.Intent import android.location.LocationManager import android.os.Bundle import android.provider.Settings import android.view.View import android.widget.TextView import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() {    private lateinit var context: Context    var intent1: Intent? = null    lateinit var textView: TextView   ... Read More

This example demonstrates how to create a WebView 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.Example             Step 3 − Add the following dependency to build.gradle(Module:app)implementation 'com.squareup.picasso:picasso:2.5.2'Step 4 − Add the following code to src/MainActivity.ktExampleimport android.os.Bundle import android.widget.ImageView import androidx.appcompat.app.AppCompatActivity import com.squareup.picasso.Picasso class MainActivity : AppCompatActivity() {    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       ... Read More

This example demonstrates how to create a WebView 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.Example         Step 3 − Add the following code to src/MainActivity.ktExampleimport android.os.Bundle import android.webkit.WebView import android.webkit.WebViewClient import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() {    private val webView: WebView? = null    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       title = "KotlinApp"       val webView = findViewById(R.id.webView)       ... Read More

This example demonstrates how to Create a listView with a checkBox 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.Example Step 3 − Add the following code to src/MainActivity.ktExampleimport android.view.View import android.widget.AdapterView.OnItemClickListener import android.widget.ListView import androidx.appcompat.app.AppCompatActivity import java.util.* class MainActivity : AppCompatActivity() {    private var dataModel: ArrayList? = null    private lateinit var listView: ListView    private lateinit var adapter: CustomAdapter    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState) ... Read More

This example demonstrates how to Add and Remove Views in Android Dynamically 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.Example                           Step 3 − Add the following code to src/MainActivity.ktExampleimport android.content.Context import android.os.Bundle import android.view.LayoutInflater import android.view.View import android.widget.LinearLayout import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() {    private var parentLinearLayout: LinearLayout? = null   ... Read More

This example demonstrates how to set the Android wallpaper image programmatically 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.Example Step 3 − Add the following code to src/MainActivity.ktExampleimport android.graphics.Bitmap import android.graphics.BitmapFactory import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.view.View import android.widget.Toast class MainActivity : AppCompatActivity() {    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       title = "KotlinApp"    }    fun setWallpaper(view: View) {       val bitmap: Bitmap ... Read More

This example demonstrates how to use ArrayAdapter in android to create a simple listview 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 MainActivity.ktimport android.os.Bundle import android.widget.ArrayAdapter import android.widget.ListView import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() {    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       title = "KotlinApp"       val arrayAdapter: ArrayAdapter     ... Read More

This example demonstrates how to get Spinner value 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 − Open res/strings.xml and add the following code −    Q39           crane       Cuckoo       Pigeon       Eagle       Owl       Vulture       WoodPecker     Step 4 − Add the ... Read More

This example demonstrates how to use SearchView in the Toolbar 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 − Open res/strings.xml and add the following code−    Q38           January       February       March       April       May       June       July       August     ... Read More