How can I use notification on Fragment? - kotlin

Question

I want to use notification on Fragment. And if I touch button, notification will appear.
I use many ways, and I find one way to use it. but it is not worked. only run like this
2022-06-08 15:30:10.765 28876-28876/com.ebookfrenzy.sample D/MyFragment: startMyService: Intent: Intent { cmp=com.ebookfrenzy.sample/.ui.MyService }
And below one is mainFragment.kt
package com.ebookfrenzy.sample.ui.main
import android.content.Intent
import android.os.Bundle
import android.util.Log
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import com.ebookfrenzy.sample.databinding.FragmentMainBinding
import com.ebookfrenzy.sample.ui.MyService
class MainFragment : Fragment() {
private var _binding: FragmentMainBinding? = null
private val binding get() = _binding!!
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
}
companion object {
fun newInstance() = MainFragment()
private const val TAG = "MyFragment"
}
private lateinit var viewModel: MainViewModel
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
_binding = FragmentMainBinding.inflate(inflater, container, false)
binding.button.setOnClickListener { startMyService()
}
return binding.root
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
}
override fun onDestroyView() {
super.onDestroyView()
_binding = null
}
private fun startMyService() {
Intent(context, MyService::class.java).also {
Log.d(TAG, "startMyService: Intent: $it")
// Check Android Policy
context?.startForegroundService(it)
// Less than Android Oreo
context?.startService(it)
}
}
}
MyService
package com.ebookfrenzy.sample.ui
import android.app.NotificationChannel
import android.app.NotificationManager
import android.app.Service
import android.content.Context
import android.content.Intent
import android.os.Build
import android.os.IBinder
import androidx.annotation.Nullable
import androidx.core.app.NotificationCompat
import com.ebookfrenzy.sample.BuildConfig
import com.ebookfrenzy.sample.R
class MyService : Service() {
companion object {
private const val TAG = "MyService"
}
private val FOREGROUND_ID: Int = 290348
private val foregroundNotificationBuilder: NotificationCompat.Builder
get() = NotificationCompat.Builder(this, applicationContext.packageName).
setSmallIcon(R.mipmap.ic_launcher_round).
setContentTitle("title").
setContentText("content text").
setPriority(NotificationCompat.PRIORITY_HIGH)
override fun onCreate() {
super.onCreate()
}
override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
startForegroundService()
return START_STICKY
}
#Nullable
override fun onBind(p0: Intent?): IBinder? {
return null
}
override fun onDestroy() {
super.onDestroy()
stopForeground(true)
}
private fun createNotificationChannel() {
val channelId = applicationContext.packageName
val channelName = BuildConfig.APPLICATION_ID
val channel = NotificationChannel(
channelId, channelName, NotificationManager.IMPORTANCE_DEFAULT
)
val manager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
manager.createNotificationChannel(channel)
}
private fun startForegroundService() {
val notification = foregroundNotificationBuilder.build()
// when Over android oreo, need to notification channel.
createNotificationChannel()
startForeground(FOREGROUND_ID, notification)
}
}
And other codes are not corrected after created
I want to resolve this problem. Please help me...