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Found 417 Articles for Kotlin
2K+ Views
This example demonstrates how to perform Web Scraping in Android Application 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.AsyncTask import android.os.Bundle import android.widget.Button import android.widget.TextView import androidx.appcompat.app.AppCompatActivity import org.jsoup.Jsoup import java.io.IOException @Suppress("DEPRECATION") class MainActivity : AppCompatActivity() { private lateinit var textView: TextView lateinit var button: Button override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) ... Read More
2K+ Views
This example demonstrates how to use shared preferences in 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.SharedPreferences import android.os.Bundle import android.preference.PreferenceManager import android.widget.Button import android.widget.CheckBox import android.widget.EditText import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { private lateinit var sharedPreferences: SharedPreferences private lateinit var editor: SharedPreferences.Editor private lateinit var ... Read More
891 Views
This example demonstrates how to use Calendar Widget using the CalendarView class in 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.widget.CalendarView import android.widget.CalendarView.OnDateChangeListener import android.widget.TextView import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var calendarView: CalendarView lateinit var dateView: TextView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) ... Read More
1K+ Views
This example demonstrates how to create custom Alert Dialogs 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.app.Dialog import android.content.Context import android.os.Bundle import android.view.View import android.widget.Button import android.widget.Toast import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { private val context: Context = this override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) ... Read More
3K+ Views
This example demonstrates how to use SearchView in Android 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.ArrayAdapter import android.widget.ListView import android.widget.SearchView import android.widget.Toast import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var searchView: SearchView lateinit var listView: ListView lateinit var list: ArrayList lateinit var adapter: ArrayAdapter override fun onCreate(savedInstanceState: Bundle?) { ... Read More
876 Views
This example demonstrates how to use XMLPullParser to parse XML in 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 − Create a Layout resource file (row.xml) and add the following code − Step 5 − Create a new asset folder, and inside the asset folder create a Android resource file (model.xml) and add the following code − ... Read More
2K+ Views
This example demonstrates how to use JSONObject to parse JSON in 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 import org.json.JSONException import org.json.JSONObject class MainActivity : AppCompatActivity() { private val jsonString = "{\"Employee\":{\"Name\":\"Niyaz\", \"Salary\":56000}}" lateinit var textView: TextView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) ... Read More
347 Views
This example demonstrates how to use Location API in Android to track your current location 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_maps.xml. Step 3 − Add the following code to src/MapsActivity.ktimport android.os.Bundle import androidx.appcompat.app.AppCompatActivity import com.google.android.gms.maps.CameraUpdateFactory import com.google.android.gms.maps.GoogleMap import com.google.android.gms.maps.OnMapReadyCallback import com.google.android.gms.maps.SupportMapFragment import com.google.android.gms.maps.model.LatLng import com.google.android.gms.maps.model.MarkerOptions class MapsActivity : AppCompatActivity(), OnMapReadyCallback { private lateinit var mMap: GoogleMap override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_maps) ... Read More
2K+ Views
This example demonstrates how to get the device's IMEI/ESN programmatically in 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.os.Bundle import android.telephony.TelephonyManager import android.widget.Button import android.widget.TextView import android.widget.Toast import androidx.appcompat.app.AppCompatActivity import androidx.core.app.ActivityCompat class MainActivity : AppCompatActivity() { lateinit var button: Button lateinit var textView: TextView private lateinit ... Read More
644 Views
This example demonstrates how to listen for a WebView finishing loading a URL in 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.webkit.WebChromeClient import android.webkit.WebView import android.webkit.WebViewClient import android.widget.Button import android.widget.TextView import android.widget.Toast import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var webView: WebView lateinit var textView: TextView private lateinit var ... Read More