Custom Listview Fast Scrollbar in android

Question

I want to custom a listview with a touchable fast scrollbar like Google play music app with vertical line with thumb image. It provides an easy and fast way to scroll with t

Answer 1

so for android api level < 11 there is special hack

// special hack for violet fast scroll
        if (android.os.Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
            try {
                java.lang.reflect.Field f = AbsListView.class.getDeclaredField("mFastScroller");
                f.setAccessible(true);
                Object o = f.get(root.findViewById(R.id.beam_contact_listview));
                f = f.getType().getDeclaredField("mThumbDrawable");
                f.setAccessible(true);
                Drawable drawable = (Drawable) f.get(o);
                drawable = getResources().getDrawable(R.drawable.sv_fastscroll);
                f.set(o, drawable);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

this code plus solution for android api level >= 11 = solution for all android api levels )