Background animation image on ProgressBar on Andro

What is the appropriate action to take when you need to change the background image of a ProgressBar? I mean should use a .gif image like : http://2.bp.blogspot.com/-O7nsXfmgwSc/T6PQ0PVr6-I/AAAAAAAAAQI/-eXkEXj24-s/s1600/02.gif and if so will the foreground color of the bar fill the image file during the proccess ? Is there a way of creating an animation for the background of the bar ? What i am aiming for is to show the animation for as long the process does not cover the full bar.

you need to get all this gif frame image as individual and then set into the animation-list in xml file.

Here is your anim_progress.xml file code

<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android" 
    android:oneshot="false">
    <item android:drawable="@drawable/i1" android:duration="500" />
    <item android:drawable="@drawable/i2" android:duration="500" />
    <item android:drawable="@drawable/i3" android:duration="500" />
    <item android:drawable="@drawable/i4" android:duration="500" />
    <item android:drawable="@drawable/i5" android:duration="500" />
    <item android:drawable="@drawable/i6" android:duration="500" />
    <item android:drawable="@drawable/i7" android:duration="500" />
    <item android:drawable="@drawable/i8" android:duration="500" />
</animation-list>

set the duration for change as smooth effect for giving animated image like gif

Here is the code for using this file

ImageView iv = new ImageView(this);
iv.setBackgroundResource(R.drawable.anim_progress);
final AnimationDrawable mailAnimation = (AnimationDrawable) iv.getBackground();
iv.post(new Runnable() {
    public void run() {
        if ( mailAnimation != null ) mailAnimation.start();
      }
});

setContentView(iv);

you can get all frames from gif file from this site.

http://gif-explode.com/

for example

http://2.bp.blogspot.com/-O7nsXfmgwSc/T6PQ0PVr6-I/AAAAAAAAAQI/-eXkEXj24-s/s1600/02.gif

this link just pass it and you will get all the frame images