为什么果冻豆不在通知中显示第二行？

Question

我目前正在研究Android支持包v4 Rev 10的NotificationCompat特性。文档中说，'set contenttext()'显示通知中的第二行。对于API8到API15都是如此。但是，如果我尝试在API16中使用此方法，我的通知将错过第二行。我只看到标题，没有看到第二行。添加多行是没有问题的（使用'addline()')。

以下是我使用的NotificationCompat.Builder的代码：

private NotificationCompat.Builder buildNormal(CharSequence pTitle) {
    NotificationCompat.Builder builder = new NotificationCompat.Builder(
            getSherlockActivity());

    builder.setAutoCancel(true).setDefaults(Notification.DEFAULT_ALL);
    // set the shown date
    builder.setWhen(System.currentTimeMillis());
    // the title of the notification
    builder.setContentTitle(pTitle);
    // set the text for pre API 16 devices
    builder.setContentText(pTitle);
    // set the action for clicking the notification
    builder.setContentIntent(buildPendingIntent(Settings.ACTION_SECURITY_SETTINGS));
    // set the notifications icon
    builder.setSmallIcon(android.R.drawable.stat_sys_download_done);
    // set the small ticker text which runs in the tray for a few seconds
    builder.setTicker("This is your ticker text.");
    // set the priority for API 16 devices
    builder.setPriority(Notification.PRIORITY_DEFAULT);
    return builder;
}

如果我想添加多行并显示通知，我使用以下代码：

NotificationCompat.Builder normal = buildNormal("This is an Expanded Layout Notification.");
    NotificationCompat.InboxStyle big = new NotificationCompat.InboxStyle(
            normal);

    // summary is below the action
    big.setSummaryText("this is the summary text");
    // Lines are above the action and below the title
    big.addLine("This is the first line").addLine("The second line")
            .addLine("The third line").addLine("The fourth line");

    NotificationManager manager = getNotificationManager(normal);
    manager.notify(Constants.NOTIFY_ID, big.build());

提前感谢您的帮助！

Answer 1

这是Jelly Bean想要的特性吗？setContentText被忽略了，还是我遗漏了什么？

setContextText()的值在折叠状态下应该是可见的（例如，如果展开，两个手指向上滑动，或者不是最上面的通知)。它将被处于展开状态的notificationcompat.inboxstyle替换，给定上面的代码。