DropdownTextView:适用于Android的简单下拉(可扩展)TextView 源码

DropdownTextView 适用于Android的简单下拉TextView 介绍 用法 通过XML向您的布局添加下拉菜单 < LinearLayout xmlns : android = " http://schemas.android.com/apk/res/android " xmlns : app = " http://schemas.android.com/apk/res-auto " android : layout_width = " match_parent " android : layout_height = " match_pa