I noticed notifications layouts have rounded edges
And mine has sharp corners
I tried rounding the corners with a drawable
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#4d4d4d"/>
    <corners android:radius="1dip"/>
</shape>
I got close, but it's really not the same.
How do I get rounded edges the standard way?
edit
Here is my code. Got the panel set in my main activity. Credit goes here.
NotificationPanel nPanel = new NotificationPanel(this);
And here are my NotificationPanel class 
public class NotificationPanel {
    private Context parent;
    private NotificationManager nManager;
    private NotificationCompat.Builder nBuilder;
    private RemoteViews remoteView;
    public NotificationPanel(Context parent) {
        // TODO Auto-generated constructor stub
        this.parent = parent;
        nBuilder = new NotificationCompat.Builder(parent)
                .setContentTitle("Parking Meter")
                .setSmallIcon(R.drawable.button_play)
                .setOngoing(true);
        remoteView = new RemoteViews(parent.getPackageName(), R.layout.notificationview);
        //set the button listeners
        setListeners(remoteView);
        nBuilder.setContent(remoteView);
        nManager = (NotificationManager) parent.getSystemService(Context.NOTIFICATION_SERVICE);
        nManager.notify(2, nBuilder.build());
    }
    public void setListeners(RemoteViews view){
        //listener 1
        Intent volume = new Intent(parent,NotificationReturnSlot.class);
        volume.putExtra("DO", "volume");
        PendingIntent btn1 = PendingIntent.getActivity(parent, 0, volume, 0);
        view.setOnClickPendingIntent(R.id.btn1, btn1);
        //listener 2
        Intent stop = new Intent(parent, NotificationReturnSlot.class);
        stop.putExtra("DO", "stop");
        PendingIntent btn2 = PendingIntent.getActivity(parent, 1, stop, 0);
        view.setOnClickPendingIntent(R.id.btn2, btn2);
    }
    public void notificationCancel() {
        nManager.cancel(2);
    }
}
Here is the notifications view layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff">
        <Button
            android:id="@+id/btn1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:text="volume" />
        <Button
            android:id="@+id/btn2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:text="Stop" />
        <TextView
            android:id="@+id/message"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@+id/msglbl" />
</LinearLayout>


 
     
    