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安卓:2个不同的视图意味着2个不同活动?
原标题:Android: 2 different Views means 2 different Activities?

My current application has one Activity, the main one which extends ListActivity (listview of course). The main Activity also holds most of the app functions.

I want to add an option for the user to select between 2 views: the current listView and a gridView. I also want to reuse my code - most functions can be used for both Views.

在我问实际问题之前,请注意,我的问题不是如何添加gridView——它已经添加好了,而且效果很好(当注释掉所有Listview行时)。

我的问题是——我该怎么做?

  • 两种不同的观点意味着我必须有两种不同活动?一个扩展“ListActivity”,一个扩展了“Activity”?

  • 我是否应该创建4个类(在这种情况下是3个活动和函数类),其中主活动将根据用户选择的内容调用其他活动之一?

  • 有没有办法对两个视图使用相同的主“活动”?(现在我将“ListActivity”扩展为“getListView()”,这将导致在“活动”查找ID为“list”的ListView时强制关闭gridView)。

  • 还有别的办法吗?

非常感谢。

最佳回答

您可以在不使用ListActivity的情况下使用ListView。如果“活动”的其余代码对于“列表”和“网格”表单都是相似的,我会推荐这种方法。动态选择要显示的适配器定义,并根据开关或if语句(在需要时)定制适配器定义,而不是使用不同的Activities。

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