Create Custom Big Notifications

Question

I wanted to create a Notification including some controls. Since text and controls are small with default notification size (64dp), i wanted have it larger than default size

Answer 1

Using Kotlin make custom notification
dialog_custom_notification

                    

                        

                            
                        

                        

                            

                            

                        

                        

                            
                        
                    
                

        shape_bg_main_notification
        
        
            

            

        



        @SuppressLint("WrongConstant")
                    fun showOfflineNotification(context: Context, title: String, description: String) {
                        val NOTIFICATION_CHANNEL_ID = "com.myapp"
                        val intent = Intent(context, HomeActivity::class.java)
                        intent.putExtra("notification", 1)
                        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
                        if (intent != null) {
                            val pendingIntent = PendingIntent.getActivity(
                                context, getTwoDigitRandomNo(), intent,
                                PendingIntent.FLAG_ONE_SHOT
                            )
                            val defaultSoundUri =
                                RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)

                            val remoteCollapsedViews = RemoteViews(packageName, R.layout.dialog_custom_notification)
                            remoteCollapsedViews.setTextViewText(R.id.tvNotificationTitle, title)
                            remoteCollapsedViews.setTextViewText(R.id.tvNotificationDescription, description)
                            remoteCollapsedViews.setTextViewText(R.id.tvDateTime, getTime())

                            val notificationBuilder = NotificationCompat.Builder(context)
                            notificationBuilder.setCustomBigContentView(remoteCollapsedViews)
                            notificationBuilder.setSmallIcon(R.mipmap.ic_launcher_round)
                            notificationBuilder.setLargeIcon(
                                BitmapFactory.de

        codeResource(
                                        context.resources,
                                        R.mipmap.ic_launcher
                                    )
                                )
                                notificationBuilder.setBadgeIconType(R.mipmap.ic_launcher_round)
                                notificationBuilder.setContentTitle(title)
                                if (description != null) {
                                    notificationBuilder.setContentText(description)
                                    notificationBuilder.setStyle(
                                        NotificationCompat.BigTextStyle().bigText(description)
                                    )
                                }
                                notificationBuilder.setPriority(NotificationCompat.PRIORITY_HIGH)
                                notificationBuilder.setAutoCancel(true)
                                notificationBuilder.setSound(defaultSoundUri)
                                notificationBuilder.setVibrate(longArrayOf(1000, 1000))
                                notificationBuilder.setContentIntent(pendingIntent)

                                val notificationManager =
                                    context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
                                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                                    val importance = NotificationManager.IMPORTANCE_MAX
                                    val notificationChannel = NotificationChannel(
                                        NOTIFICATION_CHANNEL_ID,
                                        "NOTIFICATION_CHANNEL_NAME",
                                        importance
                                    )
                                    notificationChannel.enableLights(true)
                                    notificationChannel.lightColor = Color.RED
                                    notificationChannel.enableVibration(true)
                                    notificationChannel.vibrationPattern = longArrayOf(1000, 1000)
                                    assert(notificationManager != null)
                                    notificationBuilder.setChannelId(NOTIFICATION_CHANNEL_ID)
                                    notificationManager.createNotificationChannel(notificationChannel)
                                }
                                notificationManager.notify(
                                    getTwoDigitRandomNo()/*Id of Notification*/,
                                    notificationBuilder.build()
                                )
                            }
                        }

                        private fun getTime(): String {
                            val calendar = Calendar.getInstance()
                            val mdformat = SimpleDateFormat("HH:mm")
                            val strDate = mdformat.format(calendar.time)
                            return strDate
                        }

                        fun getTwoDigitRandomNo(): Int {
                            return Random().nextInt(90) + 10
                        }



      [1]: https://me.stack.imgur.com/rQFP8.png


  [1]: https://me.stack.imgur.com/fKM9C.png