How to set a Timeout for an AsyncTask in Kotlin Android?

This example demonstrates how to set a Timeout for an AsyncTask 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.

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:padding="16dp"    tools:context=".MainActivity">    <TextView       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_centerHorizontal="true"       android:layout_marginTop="50dp"       android:text="Tutorials Point"       android:textAlignment="center"       android:textColor="@android:color/holo_green_dark"       android:textSize="32sp"       android:textStyle="bold" />    <EditText       android:id="@+id/enterTime"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_centerInParent="true"       android:layout_marginTop="50dp"       android:background="@android:drawable/editbox_background"       android:inputType="number" />    <Button       android:id="@+id/btnRun"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_below="@+id/enterTime"       android:layout_centerHorizontal="true"       android:layout_marginTop="10dp"       android:text="Run Async task" /> </RelativeLayout>

Step 3 − Add the following code to src/MainActivity.kt

import android.app.ProgressDialog import android.os.AsyncTask import android.os.Bundle import android.view.View import android.widget.Button import android.widget.EditText import android.widget.Toast import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() {    var button: Button? = null    var editTextTime: EditText? = null    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       title = "KotlinApp"       button = findViewById(R.id.btnRun)       editTextTime = findViewById(R.id.enterTime)       button?.setOnClickListener(View.OnClickListener {          val runner = AsyncTaskRunner()          val sleepTime = editTextTime?.text.toString()          runner.execute(sleepTime)       })    }    @Suppress("DEPRECATION")    private inner class AsyncTaskRunner :    AsyncTask<String?, String?, String?>() {       var progressDialog: ProgressDialog? = null       override fun doInBackground(vararg params: String?): String? {          publishProgress("AsyncTask started...")          val time = params[0]!!.toInt() * 1000          Thread.sleep(time.toLong())          return "Slept for " + params[0] + " seconds"       }       override fun onPostExecute(result: String?) {          progressDialog!!.dismiss()          Toast.makeText(this@MainActivity, "AsyncTask Terminated", Toast.LENGTH_SHORT).show()       }       override fun onPreExecute() {          progressDialog = ProgressDialog.show(             this@MainActivity,             "ProgressDialog",             "Wait for " + editTextTime!!.text.toString() + " seconds"          )       }       override fun onProgressUpdate(vararg values: String?) {          Toast.makeText(this@MainActivity, "" + values[0], Toast.LENGTH_SHORT).show()       }    } }

Step 4 − Add the following code to androidManifest.xml

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="app.com.kotlipapp">    <application       android:allowBackup="true"       android:icon="@mipmap/ic_launcher"       android:label="@string/app_name"       android:roundIcon="@mipmap/ic_launcher_round"       android:supportsRtl="true"       android:theme="@style/AppTheme">       <activity android:name=".MainActivity">          <intent-filter>             <action android:name="android.intent.action.MAIN" />             <category android:name="android.intent.category.LAUNCHER" />          </intent-filter>       </activity>    </application> </manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click the Run  icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −

Click here to download the project code.