title: Android - Expandable ListView how to animate group indicator without affect others
body: <p>I have a problem to animate a group indicator. It animates all other group indicators in different positions. I tried to discriminate it by tag with no effect. What I want is animate only the group I clicked.</p>
  
  <pre><code>public View getGroupView(int groupPosition, boolean isExpanded,
      View convertView, ViewGroup parent) {
     ... 
       if(isExpanded){
          ObjectAnimator animator =   ObjectAnimator.ofFloat(containerIndicator,"rotation",0,180f);
          animator.setDuration(400);
          animator.start();
          //arrowImage.setImageResource(R.drawable.ic_accordion_open);
          headerTitle.setTextColor(mContext.getResources().getColor(R.color.euronics_blue));
  
  
  
      }else{
          if(arrowImage.getTag().toString().equalsIgnoreCase(getGroup(groupPosition).name)) {
              ObjectAnimator animator = ObjectAnimator.ofFloat(containerIndicator, "rotation", 180f,0);
              animator.setDuration(400);
              animator.start();
          }
       ... 
  </code></pre>
  
  <p>} </p>