java - 可疑的NotificationManagerCompat转换

Question

我正在尝试使用这段代码从服务创建通知:

NotificationCompat.Builder notif=new NotificationCompat.Builder(this,"ID1").setContentTitle("HI").setContentText("THERE");
NotificationManagerCompat man=(NotificationManagerCompat) getSystemService(NOTIFICATION_SERVICE);
man.notify("tag",notif);

但是我收到此错误:

Suspicious cast to NotificationManagerCompat for a NOTIFICATION_SERVICE: expected NotificationManager

我还尝试将 NotificationManagerCompat 更改为 NotificationManager 这给了我这个错误:

'notify(int, android.app.Notification)' in 'android.app.NotificationManager' cannot be applied to '(java.lang.String, android.support.v4.app.NotificationCompat.Builder)'

还将 NotificationCompat.Builder 更改为 Notification.Builder 需要将 API 版本更改为 26，但我不打算这样做。
非常感谢任何帮助。

Answer 1

使用此示例通过 notificationmanager 发送通知

private void sendNotification() {
    // Send notifications to watch
    NotificationCompat.Builder notificationBuilder =
            new NotificationCompat.Builder(getApplicationContext())
                    .setContentTitle(getResources().getString(R.string.app_name))
                    .setContentText(Integer.toString(mStepsCount) + " " +
                            getResources().getString(R.string.steps))
                    .setSmallIcon(R.mipmap.ic_notification_fitwatch);

    // Get an instance of the NotificationManager service
    NotificationManagerCompat notificationManager =
            NotificationManagerCompat.from(getApplicationContext());

    // Build the notification and issues it with notification manager.
    notificationManager.notify(NOTIFICATION_ID, notificationBuilder.build());
}