修改SearchView搜索框的下划线.(或着其他属性)

SearchView calSearchView = (SearchView)v.findViewById(R.id.calendar_search_view);

if (calSearchView != null) {     

try {        //--拿到字节码      

Class<?> argClass = calSearchView.getClass();      

//--指定某个私有属性,mSearchPlate是搜索框父布局的名字        

Field ownField = argClass.getDeclaredField("mSearchPlate");    

//--暴力反射,只有暴力反射才能拿到私有属性       

ownField.setAccessible(true);       

View mView = (View) ownField.get(calSearchView);

//--设置背景

}

catch (Exception e) {       

e.printStackTrace();   

}}