For mozilla-mobile/fenix#4525: Download notification click

package mozilla.components.feature.downloads

import android.app.DownloadManager.ACTION_VIEW_DOWNLOADS

import android.app.Notification

import android.app.NotificationChannel

import android.app.NotificationManager

import android.app.PendingIntent

import android.content.Context

import android.content.Intent

import android.content.Intent.FLAG_ACTIVITY_NEW_TASK

import android.os.Build

import android.os.Build.VERSION.SDK_INT

import androidx.core.app.NotificationCompat

     */

    fun createDownloadCompletedNotification(context: Context, fileName: String?): Notification {

        val channelId = ensureChannelExists(context)

        val intent = Intent(ACTION_VIEW_DOWNLOADS).apply {

            flags = FLAG_ACTIVITY_NEW_TASK

        }

        return NotificationCompat.Builder(context, channelId)

            .setSmallIcon(R.drawable.mozac_feature_download_ic_download)

            .setContentTitle(fileName)

            .setContentText(context.getString(R.string.mozac_feature_downloads_completed_notification_text))

            .setColor(ContextCompat.getColor(context, R.color.mozac_feature_downloads_notification))

            .setContentIntent(PendingIntent.getActivity(context, 0, intent, 0))

            .build()

    }