如何在 Android Wear 通知上显示清晰的背景图片? [英] How to display clear background image on Android Wear notification?

问题描述

据我所知，有两种方法可以为 Android Wear 中的通知设置背景图像.为了记录，两者都以:

As far as I can work out, there are two ways to set the background image for a notification in Android Wear. For the record, both start with:

   Bitmap bitmap;
   Notification.Builder bob = new Notification.Builder(this)
            .setContentTitle(title)

...等等来设置通知.还假设 bitmap 已初始化为适当大小的图像(尽管这是另一个问题).

...and so on to set up the notification. Also assume that bitmap has been initialized to an appropriately-sized image (though that's another issue).

方法一:

   bob.setLargeIcon(bitmap);

这有效，但 AFAICT bitmap 在通知的背景中总是模糊不清，无论其大小如何.

This works, but AFAICT bitmap is always blurred-out in the background of the notification, regardless of its size.

方法二:

   bob.setStyle(new Notification.BigPictureStyle().bigPicture(bitmap));

这会清除位图，但不幸的是会在可穿戴设备上插入一个额外的页面"，即除了位图之外的空白页面.我想这里的想法是您试图向用户显示图像 - 但我不是，我只是想要一个非模糊的背景.

This clears up the bitmap, but has the unfortunate side effect of inserting an extra "page" on the wearable, a page that is blank except for the bitmap. I suppose the thinking here is that you're trying to show the image to the user - but I'm not, I just want a non-blurry background.

有没有办法做到这一点?

Is there a way to accomplish this?

推荐答案

请使用 WearableExtender 中的 setBackground(Bitmap) 方法而不是 setLargeIcon(Bitmap).它将设置不会模糊的背景位图.

Please use setBackground(Bitmap) method from WearableExtender instead of setLargeIcon(Bitmap). It will set the background bitmap that won't be blurred.

Notification.Builder wearableBuilder = new Notification.Builder(context)
    ...
    .extend(new WearableExtender().setBackground(bitmap));

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