Transition after Thread.sleep()?

I'm programming an application with an initial logo activity. It have to be displayed for 1 second and then launch the main activity using a custom transition.

The problem is that the logo activity is displayed for 1 second, but the animation is quite always the standard and only rarely the custom animation I made.

This is the code in logoActivity.class :

        Thread thread;
        i = new Intent(this, mainActivity.class);
        thread=  new Thread(){
            @Override
            public void run(){
                try {
                    synchronized(this){
                        Thread.sleep(1000);
                    }
                }
                catch(InterruptedException ex){
                    Log.d("Event Loop", "Exception: " + ex.toString());
                }
                startActivity(i);
                overridePendingTransition(R.anim.anim_out, R.anim.anim_in);
                finish();
            }
        };

this is the code in anim_out.xml :

<?xml version="1.0" encoding="utf-8"?>

<translate
xmlns:android="http://ift.tt/nIICcg"
android:duration="@android:integer/config_shortAnimTime"
android:fromXDelta="0%p"
android:toXDelta="100%p"></translate>

and this is the code in anim_in.xml:

<?xml version="1.0" encoding="utf-8"?>

<translate
xmlns:android="http://ift.tt/nIICcg"
android:duration="@android:integer/config_shortAnimTime"
android:fromXDelta="-100%p"
android:toXDelta="0%p"></translate>

I use those animations to set the custom transition from mainActivity and secondActivity too, and it works perfectly.

Please, help me solving this problem!