How do you turn off Notification programmatically from a settings options inside an app? The approach of creating the Notification channel inside an if statement in a Preference change listener seems to be doing the job. I'm concerned that the I'm creating multiple Notification channels now. Preference.xml
MainActivity.classboolean mNotificationState; Notification mNotification; SharedPreferences.OnSharedPreferenceChangeListener listener; @Override protected void onCreate(Bundle saveInstanceState) < . // Create notification object. mNotification = Notification(this); // Prefernce Listener listner = (sharedPrefences, s) -> < mNotificationState = SharedPreferences.getBoolean("notification_state", true); if(mNotificationState) < // concerned that a memory leak migh occur. notification.createNotificationChannel(); >else < notification.getNotificationManager().cancelAll(); >> /** * registerOnSharedPreferenceChangeListener */ @Override public void onResume() < super.onResume(); PreferenceManager.getDefaultSharedPreferences(this.getApplicationContext()).registerOnSharedPreferenceChangeListener(listener); >/* * unregisterOnSharedPreferenceChangeListener. */ @Override public void onDestroy()
Notification.class, contains a NotificationChannel method, notfication method, and getNotificationManager (gettter).
private Context mContext; // Constructor public Notification(Context context) < this.context = context; >// Notification channel. public void createNotificationChannel() < if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) < CharSequence name = "notification_ID"; String description = "My Notificatin"; int importance = NotificationManager.IMPORTANCE_DEFAULT; >// Set NotificationChannel ch = new NotificationChannel(NOTIFICATION_ID, name, importance); ch.setDescription(description); // Register the channel. notificationManager = context.getSystemService(NotificationManager.class); notificationManager.createNotificationChannel(ch); > public NotificationManager getNotificationManager()