我是一名初学者。
我在android api的页面上看见如下一段话。
You can use some resources directly from these R classes in your own applications, but you should generally use only resources that you've provided directly in your application, in order to provide a cohesive application package that has no external dependencies. In particular, you should not use drawable resources from the android package, because they may change between platform versions, causing unforeseen conflicts with your design. Typically, styles are the only resources you should use directly from these resources.
这段话的意思，是不是说android开发不应该像.net一样使用系统提供的可拖拽的控件？
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可以拖拽吧，但是有的拖不懂
须代码定位
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layout ,xml里面就可以拖布局啊。。。问题是这样其实还没代码来的效率。。。
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个人认为拖拽没有自己用代码实现的直接、思路清楚。