Android imageview animation

[bettybarnes]

I have 4 ImageViews which need to be moving from right to left. This is the sample video of my animation: https://docs.google.com/file/d/0B-Jk0rK9-8gUQTlUb3BrVGZEUHc/edit?usp=sharing

Here is the code I'm working on:

   private void getCorrectObject() {

    List<Integer> objects = new ArrayList<Integer>();
    for(int arr : images){
        objects.add(arr);
    }

    // Shuffle the collection
    Collections.shuffle(objects);

    iv.add((ImageView) findViewById(R.id.txtStage4_object1));
    iv.add((ImageView) findViewById(R.id.txtStage4_object2));
    iv.add((ImageView) findViewById(R.id.txtStage4_object3));
    iv.add((ImageView) findViewById(R.id.txtStage4_object4));

    Collections.shuffle(iv);

    iv.get(0).setImageResource(images[0]); // Correct Image
    iv.get(1).setImageResource(images[1]); 
    iv.get(2).setImageResource(images[2]); 
    iv.get(3).setImageResource(images[3]); 

    Animation accelerate = AnimationUtils.loadAnimation(this, R.anim.accelerate_2);
    //accelerate.setRepeatCount(-1);
    //accelerate.setRepeatMode(Animation.REVERSE);

    iv.get(0).startAnimation(accelerate);
    iv.get(1).startAnimation(accelerate);
    iv.get(2).startAnimation(accelerate);
    iv.get(3).startAnimation(accelerate);

    for (int i = 0; i < tagList.length; i++) { 
        iv.get(i).setTag(tagList[i]); 
        iv.get(i).setOnTouchListener(new MyTouchListener()); 

    } 



}

XML:

<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false" >

<translate
    android:duration="200"
    android:fromXDelta="-100%"
    android:fromYDelta="0%"
    android:toXDelta="0%"
    android:toYDelta="0%" />

</set>

But it's not doing as what I expected. Any ideas? I'd truly appreciate it. Thanks.