通知将被相互覆盖

Question

我发送不同的通知.但是当你点击其中任何一个时,我都会得到已经发送到最后一个通知的数据.怎么解决？我需要注意每个商店的数据,并且新的通知不会取代PendingIntent.FLAG_UPDATE_CURRENT它们.我使用了一个标志, 但我也使用了左边所有的标志.

private void generateNotification(Context context, String title, String message,int groupid,Intent data) {

        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
        Intent intent = new Intent(context,MyActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
                | Intent.FLAG_ACTIVITY_SINGLE_TOP);

        if (groupid==1){
            intent.putExtra("guest",data.getStringExtra("guest"));
            intent.putExtra("hotel",data.getStringExtra("hotel"));
            intent.putExtra("room",data.getStringExtra("room"));
        }
        if (groupid==5){
            intent.putExtra("hotel",data.getStringExtra("hotel"));
        }
        if (groupid==4){
            intent.putExtra("hotel",data.getStringExtra("hotel"));
            intent.putExtra("guest",data.getStringExtra("guest"));
        }

        intent.putExtra("group_id",groupid);
        Log.d("mylogout","group_id: "+groupid);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        Notification notification   = new NotificationCompat.Builder(context)
                .setContentIntent(pendingIntent)
                .setSmallIcon(R.drawable.ic_stat_gcm)
                .setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_stat_gcm))
                .setTicker("????? ?????????")
                .setWhen(System.currentTimeMillis())
                .setAutoCancel(true)
                .setContentTitle(title)
                .setContentText(message)
                .build();
        notificationManager.notify(ID_NITIF++, notification);
    }

Answer 1

诀窍是requestCode为每个不同的通知在PendingIntent上添加不同的内容.

文档是:

public static PendingIntent getActivity(Context context,int requestCode,Intent intent,int flags)

系统使用它来比较PendingIntents,如果将相同的代码传递给不同的请求,它会认为它是相同的,并且不会更新它.要解决此问题,请为每个不同的通知添加不同的requestCode.

我通常做的是确保所有通知都得到很好的更新:

//Use the hashcode of current timestamp mixed with some string to make it unique 
int requestCode = ("someString" + System.currentTimeMillis()).hashCode();

//Also add it to the intent, to make sure system sees it as different/modified
intent.putExtra("randomRequestCode", requestCode);

//Add the requestCode to the PendingIntent
PendingIntent pendingIntent = PendingIntent.getActivity(context, requestCode , intent, PendingIntent.FLAG_UPDATE_CURRENT);