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我用 1 个按钮创建了一个新的 android 应用程序。
我将我的设备（Galaxy S android 12）连接到 Galaxy Watch 4，并尝试从我的应用程序获取桥接通知到手表。
onClick()按钮启动此代码（来自 Google 磨损通知示例）：

String channelId = "channel";
CharSequence channelName = "channelName";
String channelDescription = "Channel desc";
int channelImportance = android.app.NotificationManager.IMPORTANCE_MAX;
boolean channelEnableVibrate = true;
int channelLockscreenVisibility = NotificationCompat.VISIBILITY_PUBLIC;

NotificationChannel notificationChannel =
        new NotificationChannel(channelId, channelName, channelImportance);
notificationChannel.setDescription(channelDescription);
notificationChannel.enableVibration(channelEnableVibrate);
notificationChannel.setLockscreenVisibility(channelLockscreenVisibility);

android.app.NotificationManager notificationManager =
        (android.app.NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.createNotificationChannel(notificationChannel);


NotificationCompat.BigTextStyle bigTextStyle = new NotificationCompat.BigTextStyle()
        .bigText("A")
        .setBigContentTitle("B")
        .setSummaryText("C");


Intent notifyIntent = new Intent(this, XXX.class);
notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);

PendingIntent notifyPendingIntent =
        PendingIntent.getActivity(
                this,
                0,
                notifyIntent,
                PendingIntent.FLAG_IMMUTABLE);


NotificationCompat.Builder notificationCompatBuilder =
        new NotificationCompat.Builder(
                this, channelId);

Notification notification = notificationCompatBuilder
        .setStyle(bigTextStyle)
        .setCustomHeadsUpContentView(notificationCompatBuilder.createHeadsUpContentView())
        .setContentTitle("A")
        .setContentText("B")
        .setSmallIcon(R.drawable.ic_my_app)
        .setLargeIcon(BitmapFactory.decodeResource(
                getResources(),
                R.drawable.ic_my_app))
        .setContentIntent(notifyPendingIntent)
        .setDefaults(NotificationCompat.DEFAULT_ALL)
        .setColor(ContextCompat.getColor(this, R.color.colorPrimary))
        .setLocalOnly(false)
        .setOngoing(false)
        .setCategory(Notification.CATEGORY_ALARM)
        .extend(new NotificationCompat.WearableExtender()
                .setContentIcon(R.drawable.ic_my_app).setBackground(
                        BitmapFactory.decodeResource(
                                getResources(),
                                R.drawable.ic_my_app)
                ).setDisplayIntent(notifyPendingIntent))
        .setPriority(NotificationCompat.PRIORITY_MAX)
        .setVisibility(NotificationCompat.VISIBILITY_PUBLIC).build();

notificationManager.notify(1, notification);
// OR 
NotificationManagerCompat.from(this).notify(1, notification);

我完美地收到了通知。
但是当我将我的应用程序设置为默认拨号器时，桥接通知不会到达手表。我尝试使用三星默认拨号器（com.samsung.android.dialer）并且一切正常。

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