Android: How to measure total height of ListView [duplicate]

Answer 1

Finally I've done it! This is the working code which measures ListView height and sets ListView in full size:

public static void getTotalHeightofListView(ListView listView) {

    ListAdapter mAdapter = listView.getAdapter();

    int totalHeight = 0;

    for (int i = 0; i < mAdapter.getCount(); i++) {
        View mView = mAdapter.getView(i, null, listView);

        mView.measure(
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),

                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));

        totalHeight += mView.getMeasuredHeight();
        Log.w("HEIGHT" + i, String.valueOf(totalHeight));

    }

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

}

Answer 2

Try something like this :

listItem.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

  public void onGlobalLayout() {
    int listItemHeight = listItem.getHeight();
  }
});

If you want the height of the listView then try this :

listView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

  public void onGlobalLayout() {
    int listViewHeight = listView.getHeight();
  }
});

You could also check this : Calculate the size of a list view or how to tell it to fully expand

Answer 3

ListView caches the view items and reuses them. If you have a list view with 1000 items and only 6 visible, why, it's not worth rendering the 994 not showing.

Measuring the whole ListView would mean render every ListItem, seems a bit overkill.

I don't know what you are trying to achieve but there's probably a better way :)