listview in scrollview

simple code

protected void setListViewHeightBasedOnChildren(ListView listView) {
    Adapter listAdapter = listView.getAdapter();
    if(listAdapter == null)
        return ;

    int totalHeight = 0;
    for (int i = 0; i < listAdapter.getCount(); i++) {
        View listItem = listAdapter.getView(i, null, listView);
        listItem.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
        totalHeight += listItem.getMeasuredHeight();
    }

    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
    listView.requestLayout();
}

동적으로 바꿔주는 코드

protected void setListViewInScrollObserver(final ListView listView) {
    final Adapter listAdapter = listView.getAdapter();
    if (listAdapter == null)
        return;

    listAdapter.registerDataSetObserver(new ListViewInScrollObserver(listView, listAdapter));
}

class ListViewInScrollObserver extends DataSetObserver {

    Adapter listAdapter;
    ListView listView;

    public ListViewInScrollObserver(ListView listView, Adapter listAdapter) {
        this.listView = listView;
        this.listAdapter = listAdapter;

        setListViewHeightBasedOnChildren(listView);
    }

    public void onChanged() {
        setListViewHeightBasedOnChildren(listView);
    }

    public void onInvalidated() {
        setListViewHeightBasedOnChildren(listView);
    }

    public void setListViewHeightBasedOnChildren(ListView listView) {
        int totalHeight = 0;
        for (int i = 0; i < listAdapter.getCount(); i++) {
            View listItem = listAdapter.getView(i, null, listView);
            listItem.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
            totalHeight += listItem.getMeasuredHeight();
        }

        ViewGroup.LayoutParams params = listView.getLayoutParams();
        params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
        listView.setLayoutParams(params);
        listView.requestLayout();
    }
}