通知内容标题和内容文本未显示

Posted 2023-03-15

【中文标题】通知内容标题和内容文本未显示

【英文标题】：Notification Content Title and Content Text are not shwoing

【发布时间】：2018-06-07 05:15:37

【问题描述】：

我正在生成包含多行的本地通知。所有行都正常显示，但 contentTitle 和 contentText 没有显示。

这是我生成通知的代码：

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

notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
        Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);

TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addParentStack(MainActivity.class);
stackBuilder.addNextIntent(notificationIntent);


int num = (int) System.currentTimeMillis();

PendingIntent pendingIntent = stackBuilder.getPendingIntent(num, PendingIntent.FLAG_UPDATE_CURRENT);

String id = "notification_channel_id";
CharSequence name = "Message_Notification";
Bitmap bm = BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_launcher);

NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(context, id)
        .setSmallIcon(R.mipmap.ic_launcher)
        .setContentTitle("title")
        .setContentText("time")
        .setAutoCancel(true)
        .setGroupSummary(true)
        .setGroup(GROUP_KEY)
        .setContentIntent(pendingIntent)
        .setChannelId(id);

if (subTitle != null) 
    NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();

    inboxStyle.setBigContentTitle("Dose Reminder");

 if (subTitle.contains("---")) 

        String[] splitStrings = subTitle.split("---");

        for (int i = 0; i < splitStrings.length; i++) 
            inboxStyle.addLine(splitStrings[i]);
        
     else 
        inboxStyle.addLine(subTitle);

        // Moves the expanded layout object into the notification object.
        notificationBuilder.setStyle(inboxStyle);

    

    // Moves the expanded layout object into the notification object.
    notificationBuilder.setStyle(inboxStyle);


if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) 
    notificationBuilder.setColor(ContextCompat.getColor(context, R.color.colorAccent));
 else 
    notificationBuilder.setLargeIcon(bm);


if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) 
    NotificationManager notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);

    // The user.-visible description of the channel.
    String description = "Notifications contains messages which was sent by dev team.";
    int importance = NotificationManager.IMPORTANCE_MAX;
    NotificationChannel mChannel = new NotificationChannel(id, name, NotificationManager.IMPORTANCE_DEFAULT);
    // Configure the notification channel.
    mChannel.setDescription(description);
    mChannel.enableLights(true);
    // Sets the notification light color for notifications posted to this
    // channel, if the device supports this feature.
    mChannel.setLightColor(Color.RED);
    if (notificationManager != null) 
        notificationManager.createNotificationChannel(mChannel);
    


// Sets an ID for the notification

// Gets an instance of the NotificationManager service
final NotificationManager mNotifyMgr =
        (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
// Builds the notification and issues it.
if (mNotifyMgr != null) 
    mNotifyMgr.notify(num, notificationBuilder.build());

当通知到来时，“标题”和“时间”不显示。它在多行中显示“剂量提醒”和子标题。

我错过了什么吗？

【问题讨论】：

您可以使用inboxStyle.setSummaryText("Summary"); 将摘要文本添加到您的收件箱样式吗？

@Sagar 有什么不同

存在一些问题，如果您不设置摘要，则通知设置为展开模式。添加摘要使用来修复它

@Sagar 让我试试这个

@Sagar 它不工作

【参考方案1】：

setBigContentTitle(CharSequence title)

覆盖模板大表单中的 ContentTitle。

https://developer.android.com/reference/android/app/Notification.InboxStyle

检查使用MessagingStyle部分

https://developer.android.com/training/notify-user/build-notification

JFYI 默认时间戳在推送通知中消失了，Android 7 (Nougat) 开始

【讨论】：

我尝试不设置 setBigContentTitle 然后当通知出现“标题”并且显示多行但未显示“时间”时。