Android Wear Bundled Notifications and Background Images

问题

I'd like to setup an android wear app that extends push notifications by stacking multiple notifications and then displaying different background images and action on each stacked notification.

http://developer.android.com/training/wearables/notifications/stacks.html

This is how the stacked notifications would look and then cards in the 2nd and 3rd columns would have unique background images.

I can get the background image to show up on a single notification, but when I moved to stacked notifications, they do not show up.

Does anyone know if this is possible at this time?

Example Code..

// Main Notification Object
        NotificationCompat.Builder wearNotificaiton = new NotificationCompat.Builder(this)
                .setDefaults(Notification.DEFAULT_ALL)
                .setSmallIcon(R.drawable.icon)
                .setWhen(System.currentTimeMillis())
                .setTicker(title)
                .setContentTitle(title)
                .setContentText(text);

        wearNotificaiton.setGroup(GROUP_ALARM_KEY);

        // Create second page
        Notification TrendPage =
                new NotificationCompat.Builder(this)
                        .setLargeIcon(trendImage)
                        .setStyle(new NotificationCompat.BigPictureStyle().bigPicture(trendImage))
                        .build();

        // Create third page
        Notification ChartPage =
                new NotificationCompat.Builder(this)
                        .setLargeIcon(trendImage)
                        .setStyle(new NotificationCompat.BigPictureStyle().bigPicture(trendImage))
                        .setContentTitle("test title 1")
                        .build();

        // wearable extender to add 2nd page and extend the main notification
        NotificationCompat.Builder extendedNotification =
                new NotificationCompat.WearableExtender()
                        .addPage(TrendPage)
                        .addPage(ChartPage)
                        .extend(wearNotificaiton)
                        .addAction(alertPageAction);

回答1:

I've just played with this a little bit and I'm afraid that having different backgrounds in one group is simply not possible. It doesn't matter if you have just a group of notifications or group of notifications with pages - there will be only one background for entire stack.
If you will disable the setGroup line everything will work fine with backgrounds - you will have different backgrounds on first page.

BTW. To set a background for particular notification just make use of WearableExtender:

    .extend(new NotificationCompat.WearableExtender().setBackground(trendImage))

instead of applying largeIcon or BigPictureStyle. But this doesn't solve your problem with groups of course.

来源：https://stackoverflow.com/questions/24784106/android-wear-bundled-notifications-and-background-images

标签

java

android

wear-os