修改listview默认的滑动条

首先把布局文件中李斯特view添加android:fastScrollEnabled="true"；

然后代码中添加代码：

private void setScrollBar()

{

try

{

Field f = AbsListView.class.getDeclaredField("mFastScroller");

f.setAccessible(true);

Object o = f.get(listview);

f = f.getType().getDeclaredField("mThumbDrawable");

f.setAccessible(true);

Drawable drawable = (Drawable) f.get(o);

drawable = getResources().getDrawable(R.drawable.ic_launcher);

f.set(o, drawable);

} catch (Exception e)

{

throw new RuntimeException(e);

}

}