android - TaskStackBuilder - 是否向后兼容？

Question

我正在按照示例 here 设置通知.我的应用程序与 API 15 和其他版本兼容。这是我的代码:

@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());

    }

阅读资料时here关于 TaskStackBuilder，它说“TaskStackBuilder 提供了一种向后兼容的方式来遵守设备平台版本上关于跨任务导航的正确约定。”。但是，我收到一条错误消息，指出我需要以最低 API 16 为目标才能使用 TaskStackBuilder。我还需要做些什么才能使其真正向后兼容吗？

Answer 1

您可能正在导入 android.app.TaskStackBuilder而不是 android.support.v4.app.TaskStackBuilder - 检查你的进口。