How to use an image URL as the image for notifications instead of images from the drawable?

Question

I am using the following code with the notification where the images are from the drawable. But, I want to use the image URL to use the images that I have in my Firebase Storage. How can I do that. I tried adding the URL and that gives me an error.

val bitmap = BitmapFactory.decodeResource(applicationContext.resources,R.drawable.product_image)
    val bitmapLargeIcon = BitmapFactory.decodeResource(applicationContext.resources,R.drawable.comp_logo)

This is the complete code.

    private fun sendNotification(title: String, message: String) {

    val intent: Intent = Intent(this, SplashActivity::class.java).apply {
        flags=Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
    }
    val pendingIntent: PendingIntent = PendingIntent.getActivity(this, 0,intent, 0)

    val bitmap = BitmapFactory.decodeResource(applicationContext.resources,R.drawable.product_image)
    val bitmapLargeIcon = BitmapFactory.decodeResource(applicationContext.resources,R.drawable.comp_logo)

    val builder = NotificationCompat.Builder(this, CHANNEL_ID)
        .setSmallIcon(R.drawable.product_image)
        .setContentTitle(title)
        .setContentText(message)
        .setLargeIcon(bitmapLargeIcon)
        .setStyle(NotificationCompat.BigPictureStyle().bigPicture(bitmap))
        .setContentIntent(pendingIntent)
        .setPriority(NotificationCompat.PRIORITY_DEFAULT)


    with(NotificationManagerCompat.from(this)) {
        notify(notificationId, builder.build())
    }
}

Answer 1

You can try this:

package com.tutorialsbuzz.notificationimgload

import android.app.NotificationChannel
import android.app.NotificationManager
import android.graphics.Bitmap
import android.graphics.Color
import android.graphics.drawable.Drawable
import android.os.Build
import android.os.Bundle
import android.view.View
import android.widget.Button
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.NotificationCompat
import androidx.core.app.NotificationManagerCompat
import com.bumptech.glide.Glide
import com.bumptech.glide.request.target.CustomTarget
import com.bumptech.glide.request.transition.Transition
import java.util.concurrent.atomic.AtomicInteger

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val notifyBtn = findViewById<Button>(R.id.notifyBtn)
        notifyBtn.setOnClickListener { v: View? ->
            createNotification(
                "Hey Hello!!",
                "How are you?",
                resources.getString(R.string.notification_channel)
            )
        }
    }

    private fun createNotification(
        title: String, content: String,
        channedId: String
    ) {
        val notificationBuilder = NotificationCompat.Builder(applicationContext, channedId)
            .setSmallIcon(R.drawable.ic_notifications_active)
            .setAutoCancel(true)
            .setLights(Color.BLUE, 500, 500)
            .setVibrate(longArrayOf(500, 500, 500))
            .setPriority(NotificationCompat.PRIORITY_HIGH)
            .setContentTitle(title)
            .setContentText(content)
            .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)


        // Since android Oreo notification channel is needed.
        val notificationManager = NotificationManagerCompat.from(this@MainActivity)

        // Since android Oreo notification channel is needed.
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            val channel = NotificationChannel(
                channedId,
                channedId,
                NotificationManager.IMPORTANCE_HIGH
            )
            channel.lockscreenVisibility = NotificationCompat.VISIBILITY_PUBLIC
            notificationManager.createNotificationChannel(channel)
        }
        val imageUrl =
            "https://i.pinimg.com/originals/1b/7e/4e/1b7e4eac8558ad54d6fe94ed4e14cb84.jpg"
        Glide.with(applicationContext)
            .asBitmap()
            .load(imageUrl)
            .into(object : CustomTarget<Bitmap>() {
                override fun onResourceReady(resource: Bitmap, transition: Transition<in Bitmap>?) {
                    notificationBuilder.setLargeIcon(resource) //largeIcon
                    notificationBuilder.setStyle(
                        NotificationCompat.BigPictureStyle().bigPicture(resource)
                    ) //Big Picture
                    val notification = notificationBuilder.build()
                    notificationManager.notify(NotificationID.iD, notification)
                }

                override fun onLoadCleared(placeholder: Drawable?) {}
                override fun onLoadFailed(errorDrawable: Drawable?) {
                    super.onLoadFailed(errorDrawable)
                }
            })
    }

    internal object NotificationID {
        private val c = AtomicInteger(100)
        val iD: Int
            get() = c.incrementAndGet()
    }
}