Fix bug and refactoring.

Author: optim-sari-yamaguchi

app/src/main/java/jp/co/optim/techblog_android_notification_sample/activity/CallActivity.kt

@@ -23,6 +23,7 @@ class CallActivity : AppCompatActivity(), CallingFragment.Callback, TalkingFragm
  private val fragmentManager = supportFragmentManager
 
  override fun onCreate(savedInstanceState: Bundle?) {
+ logD("onCreate()")
  super.onCreate(savedInstanceState)
  setContentView(R.layout.activity_call)
 

app/src/main/java/jp/co/optim/techblog_android_notification_sample/constants/NotificationId.kt

@@ -1,6 +1,6 @@
 package jp.co.optim.techblog_android_notification_sample.constants
 
-import kotlin.random.Random
+import java.util.*
 
 enum class NotificationId(val id: Int) {
 
@@ -12,6 +12,6 @@ enum class NotificationId(val id: Int) {
  ;
 
  companion object {
- fun generateRandomId(): Int = Random.nextInt()
+ fun generateRandomId(): Int = Random().nextInt()
  }
 }

app/src/main/java/jp/co/optim/techblog_android_notification_sample/receiver/CallRefusedReceiver.kt

@@ -9,8 +9,7 @@ import jp.co.optim.techblog_android_notification_sample.notification.Notificatio
 
 class CallRefusedReceiver: BroadcastReceiver() {
 
- val notificationPostman =
- NotificationPostman();
+ private val notificationPostman = NotificationPostman();
 
  override fun onReceive(context: Context?, intent: Intent?) {
  logD("onReceive()")