TextView设置drawable设置相关

xml里设置

android:drawableRight="@mipmap/company_expand_down"

android:drawablePadding="@dimen/dp_4"

代码设置

Drawable drawable =mContext.getResources().getDrawable(R.mipmap.company_expand_down);

下面这一步必须有，不然图标可显示不出来哟！！！

drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());

tvExpand.setCompoundDrawables(null, null, drawable, null);