代码中改变drawableTop等属性的图片

有以下三句代码即可：

• Drawabledrawable1=getResources().getDrawable(R.drawable.tab_accounte);
• drawable1.setBounds(0, 0, drawable1.getMinimumWidth(),
  drawable1.getMinimumHeight());
• rb_rememberaccount.setCompoundDrawables(null, drawable1, null, null);