从选项卡的活动中一款Android TabHost更新标签 [英] Update tabs from a tab's activity in a Android TabHost

问题描述

我有一个TabActivity和我将有3个或4个标签。

I have a TabActivity and am going to have 3 or 4 tabs.

在塔巴，我想有一个ExpandableListView，这将列出产品。我想TABC充当一种购物车中，可能与自身的ListView控件。

In TabA, I would like to have an ExpandableListView, which will list products. I would like TabC to act as a sort of "shopping cart", probably with a ListView of itself.

有没有办法来从活动的TabHost互动？我希望能够点击塔巴内的按钮，并把它更新和切换到TABC。这可能吗？我能跳的活动，呼吁其父母的方法呢？

Is there a way to interact with the TabHost from the Activity? I would like to be able to click a button inside of TabA and have it update and switch to TabC. Is this possible? Can I get the Tab's activities call its parents methods?

推荐答案

如果你实现你的标签是视图，而不是单独的活动，这将是简单得多，运行速度更快，占用内存更少，并成为一个更好的解决方案恕我直言

If you implement your tabs as views, rather than individual activities, this would be far simpler, run faster, take up less memory, and be a better solution IMHO.

话虽这么说，在Tab A 活动，呼叫的getParent（）获得的 TabActivity 。然后，您可以用指出disretrospect的方法。

That being said, in the Tab A Activity, call getParent() to get at the TabActivity. Then, you can use the methods pointed out by disretrospect.

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