TaskStackBuilder -向后兼容还是不兼容？

Question

我正在按照示例这里设置一个通知。我的应用程序兼容API 15和别有用心的版本。这是我的密码：

@Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        // send notification

        // API < 16 so have to use compat
        NotificationCompat.Builder mBuilder =
                new NotificationCompat.Builder(context)
                //.setSmallIcon(context.getResources().getDrawable(icon_id_here))
                .setContentTitle("My notification")
                .setContentText("Hello World!");
        // Creates an explicit intent for an Activity in your app
        Intent resultIntent = new Intent(context, UpcomingTest.class);

        // The stack builder object will contain an artificial back stack for the
        // started Activity.
        // This ensures that navigating backward from the Activity leads out of
        // your application to the Home screen.
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
        // Adds the back stack for the Intent (but not the Intent itself)
        stackBuilder.addParentStack(UpcomingTest.class);
        // Adds the Intent that starts the Activity to the top of the stack
        stackBuilder.addNextIntent(resultIntent);
        PendingIntent resultPendingIntent =
                stackBuilder.getPendingIntent(
                    0,
                    PendingIntent.FLAG_UPDATE_CURRENT
                );
        mBuilder.setContentIntent(resultPendingIntent);
        NotificationManager mNotificationManager =
            (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        // mId allows you to update the notification later on.
        mNotificationManager.notify(123, mBuilder.build());

    }

当阅读有关TaskStackBuilder的信息时，它说："TaskStackBuilder提供了一种向后兼容的方式，可以在设备版本的平台上遵守有关跨任务导航的正确约定。“但是，我得到了一个错误，该错误说，为了使用TaskStackBuilder，我需要瞄准最小的API 16。我还需要做些什么才能真正做到向后兼容呢？

Answer 1

您可能正在导入android.app.TaskStackBuilder而不是android.support.v4.app.TaskStackBuilder --检查您的导入。