How to show image from remote Url in Android Kotlin

In this android kotlin source code example, we are going to show image from remote Url in Android Kotlin.

You can copy and adopt this source code example to your Kotlin android project without reinventing the wheel.

Below is a step by step source code to show image from remote Url in Android Kotlin.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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=".imageView.ImageViewActivity1">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.kt

import android.content.Intent
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import com.bluapp.kotlinview.R
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import android.os.AsyncTask
import android.util.Log
import android.widget.ImageView


class ImageViewActivity1 : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_image_view1)
        ImageLoader(findViewById<ImageView>(R.id.imageView) as ImageView).execute("https://inducesmile.com/wp-content/uploads/2019/01/inducesmilelog.png")
    }


    private inner class ImageLoader(internal var bmImage: ImageView) : AsyncTask<String, Void, Bitmap>() {
        override fun doInBackground(vararg urls: String): Bitmap? {
            val urldisplay = urls[0]
            var mIcon11: Bitmap? = null
            try {
                val `in` = java.net.URL(urldisplay).openStream()
                mIcon11 = BitmapFactory.decodeStream(`in`)
            } catch (e: Exception) {
                Log.e("Error", e.message)
                e.printStackTrace()
            }

            return mIcon11
        }

        override fun onPostExecute(result: Bitmap) {
            bmImage.setImageBitmap(result)
        }
    }

}

AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET" />

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