i am trying to implement notifications in my android application. when the user clicks on the notification i run the activity if it isn't already running .. but if the activity is already running i don't want to recreate it, i just want to refresh the data by intercepting the intent from the onNewIntent function. the problem is that every time I click on the notification, the activity is recreated, and the onNewIntent function is not called.
the problem occurs when I create the notification from a service. but when I create the notification from the same activity that I am going to run, everything works fine.
I searched the internet and tried all the solutions I found, but it still doesn't work
I tried several combinations of intent flags, but nothing works
this is my code
val intent : Intent = Intent(this, HomeActivity::class.java)
finalIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP)
val pendingIntentFlags : Int = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
{
PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_MUTABLE
}
else
{
PendingIntent.FLAG_UPDATE_CURRENT
}
val pendingIntent : PendingIntent? = TaskStackBuilder.create(context).run {
addNextIntentWithParentStack(finalIntent)
getPendingIntent(0, pendingIntentFlags)
}
val notification = NotificationCompat.Builder(context, type.channelId)
.setBadgeIconType(NotificationCompat.BADGE_ICON_SMALL)
.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
.setPriority(NotificationCompat.PRIORITY_MAX)
.setCategory(Notification.CATEGORY_SERVICE)
.setDefaults(Notification.DEFAULT_ALL)
.setAllowSystemGeneratedContextualActions(true)
.setOnlyAlertOnce(true)
.setAutoCancel(true)
.setLocalOnly(true)
.setOngoing(false)
.setSilent(false)
.setSmallIcon(R.drawable.icon_notification)
.setContentIntent(pendingIntent)
.build()
notificationManager?.notify(NOTIFICATION_ID, notification)
CodePudding user response:
Let your notification send a broadcast. In your activity you should register a dynamic broadcast receiver. This will allow you to refresh the content in the activity without reloading it.
For the case that the activity is not running, you should define a broadcast receiver in the manifest which starts the activity. when your activity starts, disable the broadcast receiver and re-enable it when your activity stops.
CodePudding user response:
You can just set launch mode attribute to singleInstance
in the manifest on your activity and start it with FLAG_ACTIVITY_NEW_TASK
only.