Question

因此,我有一个活动将显示一个选项列表, 当您单击一个选项时, 它应该移动到一个列表, 显示该选项的选项, 但我希望两个列表都在同一活动中。

我在辩论使用单一列表视图和修改内容这两个选项(如果适用,可以互换适配器,但不确定),每当用户在两个列表之间浏览时,或者使用像查看器一样的两种列表独立存在,但每次只能看到一个。

我肯定地认为,更清洁的选择是透视器的选项,但如果我需要将其扩大至两个以上的列表,它将如何运作呢? 创建一份没有实现的列表视图是否有很多管理费用?

Answer 1

保持一个列表视图并切换其后端将是一个痛苦, 特别是考虑到每次点击一个选项时, 所有的重新初始化。

- 使用两个列表碎片, 一个控制另一个控制。使用碎片而不是两个单独的列表活动将意味着当您建立一个平板界面时, 在同一屏幕上同时使用一个活动是最小的。

- 使用 < a href=>" "http:// developmenter.android.com/ reference/android/widget/ ExpandableListView.html" rel = "nofollow" > 扩大的ListView

Answer 2

I did have a choice like that. I was using a list view to navigate to a remote webdav server. At the beginning I was using one view for each folder. It was cool: using back was allowing me not to worry about navigation history. But after a while, there was some cases where I needed to manage all the views at once, or kill them all or implement a communication between views (for parameters). And it was a nightmare to achieve. Also my list were beginning to be heavy and a lot of list in memory is never a good thing. I finally gave up and managed all the navigation in a unique list view. I should have do it at first.

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