Change Height of a Listview dynamicallyAndroid

Question

The format of my XML file is as following:

 LinearLayout 

     ScrollView

         RelativeLayout

             LinearLayout

             

        

Answer 1

You can use below method to set the height of listview programmatically:

<ListView
        android:id="@+id/lvMenu"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#ffffff"
        />

Method used for setting height of listview:

public static boolean setListViewHeightBasedOnItems(ListView listView) {

        ListAdapter listAdapter = listView.getAdapter();
        if (listAdapter != null) {

            int numberOfItems = listAdapter.getCount();

            // Get total height of all items.
            int totalItemsHeight = 0;
            for (int itemPos = 0; itemPos < numberOfItems; itemPos++) {
                View item = listAdapter.getView(itemPos, null, listView);
                float px = 500 * (listView.getResources().getDisplayMetrics().density);
                item.measure(View.MeasureSpec.makeMeasureSpec((int)px, View.MeasureSpec.AT_MOST), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
                totalItemsHeight += item.getMeasuredHeight();
            }

            // Get total height of all item dividers.
            int totalDividersHeight = listView.getDividerHeight() *
                    (numberOfItems - 1);
            // Get padding
            int totalPadding = listView.getPaddingTop() + listView.getPaddingBottom();

            // Set list height.
            ViewGroup.LayoutParams params = listView.getLayoutParams();
            params.height = totalItemsHeight + totalDividersHeight + totalPadding;
            listView.setLayoutParams(params);
            listView.requestLayout();
            return true;

        } else {
            return false;
        }

    }

Then set it like below code:

 MenuAdapter menuAdapter = new MenuAdapter(context, R.layout.menu_item);
            lvMenu.setAdapter(menuAdapter);
            setListViewHeightBasedOnItems(lvMenu);

Answer 2

If you want to change the height of list view dynamically, you could use,

list.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, theSizeIWant));