小编Jus*_*and的帖子

我写了一个代码,在Beacon范围内有弹出通知.

我的通知代码如下:

private void showNotification(String message){
        Log.d("Hay8","DCM8");
        Intent intent = new Intent(context, MainActivity.class);
        Log.d("Hay9","DCM9");
        PendingIntent pendingIntent = PendingIntent.getActivity(context,0,intent,PendingIntent.FLAG_UPDATE_CURRENT);
        Log.d("Hay10","DCM10");

        NotificationCompat.Builder builder = new NotificationCompat.Builder(context,"default")
                .setSmallIcon(android.R.drawable.ic_dialog_info)
                .setContentTitle("Notification1")
                .setContentText(message)
                .setDefaults(NotificationCompat.DEFAULT_ALL)
                .setPriority(NotificationCompat.PRIORITY_HIGH)
                .setContentIntent(pendingIntent);
        Log.d("Hay11","DCM11");



        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        Log.d("Hay12","DCM12");
        notificationManager.notify(NotiID++,builder.build());
    }

我尝试使用日志调试,我认为问题是关于NotificationManager方法.这是日志:

05-23 17:23:30.774 18668-18668/com.example.user.estimotebeacon D/Hay8: DCM8
05-23 17:23:30.774 18668-18668/com.example.user.estimotebeacon D/Hay9: DCM9
05-23 17:23:30.776 18668-18668/com.example.user.estimotebeacon D/Hay10: DCM10
05-23 17:23:30.780 18668-18668/com.example.user.estimotebeacon D/Hay11: DCM11
05-23 17:23:30.781 18668-18668/com.example.user.estimotebeacon D/Hay12: DCM12
05-23 17:23:30.788 18668-18668/com.example.user.estimotebeacon E/NotificationManager: notifyAsUser: tag=null, id=1, user=UserHandle{0}
05-23 17:23:30.798 18668-18668/com.example.user.estimotebeacon D/Hay20: DCM20
05-23 17:23:30.859 …

我的问题是 getTag() 是在 null 方法上调用的。在下面的 logcat 中说。（我的应用程序已经有了 setTag() 然后是 getTag()。

我有一个这样的适配器代码 ListView ：

public BeaconListAdapter(Activity context){
        this.inflater = LayoutInflater.from(context);
        this.beacons = new ArrayList<>();
    }

    public void replaceWith(Collection<com.estimote.coresdk.recognition.packets.Beacon> newBeacons){
        this.beacons.clear();
        this.beacons.addAll(newBeacons);
        notifyDataSetChanged();
    }

    @Override
    public int getCount() {
        return beacons.size();
    }

    @Override
    public com.estimote.coresdk.recognition.packets.Beacon getItem(int position) {
        return beacons.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        convertView = inflateRequires(convertView);
        bind(getItem(position),convertView);
        return convertView;
    }

    private void bind(final com.estimote.coresdk.recognition.packets.Beacon beacon, …