问题描述
我要使图像的网格，我试图找出是否使用数组适配器或baseadaptor。虽然 GridView的例子，存储在阵列中的数据，它采用了BaseAdapter，而不是一个ArrayAdaptor。我很好奇这是为什么。有一件事我注意到了有关的ArrayAdapter，是它的构造函数需要一个 textViewResourceId 由于一些未知的原因 - 虽然文件说，getView可以用来使其与其他种类的工作，意见也是如此。所以，如果我想要一个图像定格的菜单，哪个类，你会推荐选择？
I am going to make a grid of images and I am trying to figure out whether to use an array adaptor or a baseadaptor. While the GridView example, stores the data in an array, it uses a BaseAdapter rather than a ArrayAdaptor. I am curious why this is. One thing I noticed about an ArrayAdapter, is that its constructor takes a textViewResourceId for some unknown reason - although the documentation say the getView can be used to make it work with other kinds of views as well. So, if I want a fixed grid of images for a menu, which class would you recommend choosing?
推荐答案
您通常选择基于模型的数据是你的适配器类。如果你有一个的ArrayList 的对象，使用 ArrayAdapter 。如果从数据库查询有一个光标，使用的CursorAdapter 。 BaseAdapter 可用于任何东西，但它需要更多的代码，因为它有一个如何遍历数据没有良知。
You typically choose your adapter class based on what the model data is. If you have an ArrayList of objects, use ArrayAdapter. If you have a Cursor from a database query, use a CursorAdapter. BaseAdapter can be used for anything, but it requires more coding, since it has no innate knowledge of how to iterate over the data.
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