Android Image Is Seen/not Seen When Orientation Is Changed

I'm having some problems with ScrollView and an ImageView. What I want is: I have an ImageView set always at the top of the screen. Then, I have an ScrollView where go all elements

Solution 1:

The solution I've found, looking at that question, is:

Create that function:

public static void setListViewHeightBasedOnChildren(ListView listView) {
        ListAdapter listAdapter = listView.getAdapter(); 
        if (listAdapter == null) {
            // pre-condition
            return;
        }

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

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

and call it with my ListView. Only one Scroll (the one of ScrollView) is seen and used.