Strange problem with ViewFlipper

I have a ViewFlipper that shows 2 imageview (red one when disconnected and the green other when connected), however, i have a strange result: sometimes the red image is showen when i'开发者_如何学编程m connected, it switches like this : red-green-and returns red(even when i'm connected). Here is the JAVA code:

public void onRegistrationDone(String localProfileUri, long expiryTime) {

                        updateStatus("Enregistré au serveur.");
                        Log.d("SUCCEED","Registration DONE");

                        final ViewFlipper flipper = (ViewFlipper)findViewById(R.id.flipper);
                        flipper.postDelayed(new Runnable() {
                        public void run() {
                        flipper.showNext();
                            }
                        },2000);}

The view is initiated with the red image, then, when connected(and after 2 seconds) the next image is normally showen.

What could be the problem? Thank you very much.

EDIT: XML file (Handler)

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent">

<TextView
  android:id="@+id/sipLabel"
  android:textSize="20sp"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  />
  <ImageView android:id="@+id/status"  android:layout_below="@id/sipLabel" 
  android:layout_width="fill_parent" android:scaleType="center"
        android:layout_height="fill_parent" android:layout_weight="0.35" android:gravity="center"

         />
        </LinearLayout>

I would do that differently. If that is just a matter of displaying different image (red/green) I would use ImageView UI control to display that image. And for the delayed display update you may use Handler. Something like this:

public void onRegistrationDone(String localProfileUri, long expiryTime) 
{
    updateStatus("Enregistré au serveur.");
    Log.d("SUCCEED","Registration DONE");

    mRegistered = true;
    mRegistrationUpdateHandler.removeCallbacks(handleUpdateStatus);
    mRegistrationUpdateHandler.postDelayed(handleUpdateStatus, 2000);
}

public void onRegistrationLost()
{
    mRegistered = false;
    mRegistrationUpdateHandler.removeCallbacks(handleUpdateStatus);
    mRegistrationUpdateHandler.postDelayed(handleUpdateStatus, 2000);
}

private Runnable handleUpdateStatus = new Runnable() 
{     
    public void run()
    {
        ImageView statusImageDisplay = (ImageView)findViewById(R.id.statusImage);
        if (mRegistered)
        {
            statusImageDisplay.setImageDrawable(getResources().getDrawable(R.drawable.imageGreen));
        else
        {
            statusImageDisplay.setImageDrawable(getResources().getDrawable(R.drawable.imageRed));
        }
    }
};