android - 通知在模拟器上有效，但在真实设备上无效

Question

我正在尝试在 Samsung Galaxy S7(Android 8.0)上测试我的应用程序，但没有出现通知，我已经检查了应用程序权限和电池设置，它可能是什么？

public void sendNotification(View view)
{

    @SuppressWarnings("deprecation")
    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this);

    //creating the intent that’ll fire when the user taps the notification
    Intent intent = new Intent(getApplicationContext(), ViewActivity.class);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
    mBuilder.setContentIntent(pendingIntent);
    //making notification disappear after being clicked
    mBuilder.setAutoCancel(true);

    mBuilder.setSmallIcon(R.drawable.notification_icon);
    mBuilder.setContentTitle("TI connect");
    mBuilder.setContentText("New report has been added!  Total reports: " + repNo);
    mBuilder.setPriority(Notification.PRIORITY_MAX);

    NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    mNotificationManager.notify(001, mBuilder.build());
}

Answer 1

在 Android 8.0 中需要 Channal

你需要添加这个

 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                CharSequence name = getString(R.string.app_name);
                int importance = NotificationManager.IMPORTANCE_HIGH;
                NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
                assert notificationManager != null;
                notificationManager.createNotificationChannel(mChannel);
            }

和

String CHANNEL_ID = "my_channel_01";
notificationBuilder.setChannelId(CHANNEL_ID);