在Android中啟用展開布局時，默認情況下如何使用折疊的布局顯示自定義通知

Question

當用戶折疊或展開通知時，我想通過同時支持大小布局來顯示我的自定義通知，如上面的屏幕截圖所示。 但是結果默認情況下顯示擴展的通知。 我想默認將其顯示為折疊通知，並且僅在用戶展開時顯示展開通知。

請檢查下面的代碼：

 private fun initCustomNotification() {
    // Get the layouts to use in the custom notification
    val notificationLayout = RemoteViews(packageName, R.layout.custom_notification_small_layout)
    val notificationLayoutExpanded = RemoteViews(packageName, R.layout.custom_notification_large_layout)

    // Apply the layouts to the notification
    customNotificationBuilder = NotificationCompat.Builder(this, CHANNEL_ID)
            .setSmallIcon(R.drawable.dog)
            .setStyle(NotificationCompat.DecoratedCustomViewStyle())
            .setCustomContentView(notificationLayout)
            .setCustomBigContentView(notificationLayoutExpanded)
            .setOngoing(true)
            .setShowWhen(false)
}

謝謝。

Answer 1

可能會晚一些，但可能對其他人有所幫助。 您可以默認使用NotificationManager.IMPORTANCE_MIN設置折疊的通知，也可以默認使用NotificationManager.IMPORTANCE_MIN設置展開的通知NotificationManager.IMPORTANCE_HIGH.

您可以有完整的示例：

public void generateCollepedNotification(Context context, String notificationTitle, String notificationSubText, String notificationMessage) {
        String channelId = "my_channel_id";
        int notification_id = 1001;

        NotificationCompat.Builder builder = new NotificationCompat.Builder(context, channelId)
                .setSmallIcon(R.mipmap.ic_logo_notification)
                .setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_logo)) // optional
                .setContentTitle(notificationTitle)
                .setContentText(notificationMessage)
                .setSubText(notificationSubText) // optional
                .setColor(ContextCompat.getColor(context, R.color.colorPrimary)) // optional
                .setAutoCancel(true);

        getNotificationManagerIMPORTANCE_MIN(context, channelId).notify(notification_id, builder.build());
    }



private NotificationManager getNotificationManagerIMPORTANCE_MIN(Context context, String channelId) {
        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            String channelName = "My Channel Name";
            String channelDescription = "This is Description of my channel";
            NotificationChannel mChannel = new NotificationChannel(
                    channelId,
                    channelName,
                    NotificationManager.IMPORTANCE_MIN
            );
            mChannel.setDescription(channelDescription);
            mChannel.enableLights(true);
            mChannel.setLightColor(Color.RED);
            mChannel.setShowBadge(false);
            notificationManager.createNotificationChannel(mChannel);
        }
        return notificationManager;
    }