Set Animation For Expandable List down/up

Question

How I can set animation(expand/collapse) for expandable list whit use customize adapter that extend BaseExpandableListAdapter?

Update: Like This : https://www.youtube.com/watch?v=J7rcFRKvpyY

Answer 1

You need to include this in the layout file, in the parent of your list

android:animateLayoutChanges="true"

Then something like this in onCreate() in your activity.

    LinearLayout layout = (LinearLayout)findViewById(R.id.list_container);
    LayoutTransition t = layout.getLayoutTransition();
    t.setDuration(200);            // 200ms
    layout.setLayoutTransition(t);

You can learn more about using LayoutTransition here