如果仅设置了大图标，则不会显示通知 [英] Notification doesn't show up if only large icon is set

问题描述

我想在通知中添加一个大图标，但是当我运行该应用程序时，该通知不会显示.

I want to add a large icon to my notification, but when I run the app, the notification doesn't show up.

当我更改为小图标时，它可以工作，但是图标太小.

When I change to small icon, it works but icon is too small.

下面是我的代码，有什么帮助吗?

Below is my code, any help where it is wrong?

Bitmap rawBitmap = BitmapFactory.decodeResource(getResources(),
                                                     R.drawable.ic_launcher);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
    .setLargeIcon(rawBitmap)
    .setContentTitle("Alert")
    .setContentText("CITRUS PUNCH Minute Maid expired");
NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
nm.notify(1, mBuilder.build());

推荐答案

每个必填字段通知指南列表，您必须通过通知图标指南:诸如通知图标生成器之类的工具可能会帮助构建适当的小图标.

Per the notification guide list of required fields, you must set a small icon via the setSmallIcon() method. Generally, this icon looks like your application icon, although entirely as white over a transparent background per the notification iconography guide: tools such as the Notification Icon Generator may help in building an appropriate small icon.

在Android 5.0+设备上，您可以使用 setColor()为您的小图标后面设置品牌背景颜色.

On Android 5.0+ devices, you can use setColor() to set a branded background color for behind your small icon.

大图标不是 用于品牌宣传的目的-相反，它们应用于使其个性化，并且是与通知的发送者关联的图像(例如个人资料图片)或用于传达通知含义的其他信息.

Large icons are not meant for branding purposes - instead, they should be used to make it personal and be an image associated with the sender of the notification (i.e., a profile picture) or additional information to convey the meaning of the notification.

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