Slide down effect on expanding listview item visibility issues while scrollng

Question

jumbled listview item while scrolling. I'm trying to implement this idea in my listview and facing the following issue

Under Onitemclick() last visisble view is closed and new view is shown, its working but when first item is visible and after scrolling the listview I see other item are also visible without user clicks. Any suggestion how to keep the only one item visible while scrolling.

Actitvity:

public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
View last_dropdownBarview=null;

 ViewHolder holder = (ViewHolder) arg1.getTag();
    final View dropDown = holder.dropdownBarview;

if(last_dropdownBarview!=null)
{
    last_dropdownBarview.setVisibility(View.GONE);
}

ExpandCollapseAnimation.setHeightForWrapContent(MainActivity.this, dropDown);
ExpandCollapseAnimation expandAni = new ExpandCollapseAnimation(dropDown, DROP_DOWN_TIME);
dropDown.startAnimation(expandAni);

last_dropdownBarview= dropDown;

}

Adapter class:

static class ViewHolder {
    .
    .
    protected View dropdownBarview;

}

public View getView(int position, View convertView, ViewGroup parent) {

    ViewHolder viewHolder = null;
    if (convertView == null) {

        LayoutInflater inflator = context.getLayoutInflater();
        convertView = inflator.inflate(R.layout.row, null);
        viewHolder = new ViewHolder();

        viewHolder.dropdownBarview= convertView.findViewById(R.id.toolbar);
        convertView.setTag(viewHolder);
        convertView.setTag(R.id.dropdownbar,viewHolder.dropdownBarview);            
    }
    else {
        viewHolder = (ViewHolder) convertView.getTag();
    }

    viewHolder.dropdownBarview.setTag(position);
}

score 0 · Answer 1 · edited May 23 '17 at 12:13

0

once see here

   DisplayMetrics metrics = new DisplayMetrics();
   getWindowManager().getDefaultDisplay().getMetrics(metrics);
   int width = metrics.widthPixels; 

 mExpandableList = (ExpandableListView)findViewById(R.id.expandable_list);
 mExpandableList.setIndicatorBounds(width - GetPixelFromDips(50), width - GetPixelFromDips(10));  

    public int GetPixelFromDips(float pixels) {
     // Get the screen's density scale 
      final float scale = getResources().getDisplayMetrics().density;
     // Convert the dps to pixels, based on density scale
   return (int) (pixels * scale + 0.5f);
 }

see this one working fine

edited May 23 '17 at 12:13

Community

1
1

answered Sep 30 '13 at 08:28

NagarjunaReddy

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How can I use this logic and where? – user755 Sep 30 '13 at 08:31
see this one http://theopentutorials.com/tutorials/android/listview/android-expandable-list-view-example/ – NagarjunaReddy Sep 30 '13 at 09:04
I dont want expandablelistview. please checkout the link posted in my question. – user755 Sep 30 '13 at 09:10

Slide down effect on expanding listview item visibility issues while scrollng

1 Answers1