Question

我试图在我的Android应用中实现推送通知。理想情况下，如果打开了首选项，则当新消息到达时，屏幕顶部应显示我的自定义标题和图标的通知。但是当我收到新消息时没有任何反应。我正在运行模拟器（因为我没有带SIM卡的设备）来发送和接收消息，版本是Android 5.0.1，API 21。

这是我的通知代码：

public class SmsReceiver extends BroadcastReceiver {
private static String TAG = "**SmsReceiver**";
private static final String SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED";

private static final int NOTIFY_CODE = 1;
private static final int NOTIFY_ID = 3;
private static int SMS_SENT_CODE = 2;

final SmsManager sms = SmsManager.getDefault();

@Override
public void onReceive(Context context, Intent intent) {
    Log.v(TAG, "Received SMS: " + intent);

    if (intent.getAction().equals(SMS_RECEIVED)) {
        Bundle bundle = intent.getExtras();
        if (bundle != null) {
            SmsMessage[] messages = Telephony.Sms.Intents.getMessagesFromIntent(intent);

            // notifications and auto-reply
            for (SmsMessage message : messages) {
                notification(context, message);
            }

        }
    }
}
private void notification(Context context, SmsMessage message) {

    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);

    // determine whether to push notification or not
    boolean pushNotification = prefs.getBoolean("pref_push_notification",true);
    if (pushNotification) {
        NotificationCompat.Builder builder =
                new NotificationCompat.Builder(context)
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setContentTitle("New Message from: "+message.getDisplayOriginatingAddress())
                    .setContentText(message.getDisplayMessageBody())
                    .setVibrate(new long[] {0,500,500,500})
                    .setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
                    .setPriority(NotificationCompat.PRIORITY_HIGH);

        Intent resultIntent = new Intent(context, MainActivity.class);

    // add a history stack from the parent stack

        TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
        stackBuilder.addParentStack(MainActivity.class);
        stackBuilder.addNextIntent(resultIntent);
        PendingIntent pendingIntent = stackBuilder.getPendingIntent(NOTIFY_CODE,PendingIntent.FLAG_UPDATE_CURRENT);

        // handle click notification
        builder.setContentIntent(pendingIntent);

        // ask the system whether to show notification
        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(NOTIFY_ID,builder.build());
    }
    else {
        Toast.makeText(context,"You got a message", Toast.LENGTH_SHORT).show();
    }
}

有什么错误的想法？提前谢谢！

Android应用程序通知推送不起作用

0 个答案: