如何生成的Andr​​oid随机事件？ [英] How to generate random events in android?

问题描述

我有一个对象的数组，并希望能够随机选择一个从当按钮为pressed名单。你会如何​​做，在Android的？

I have a an array of objects and would like to be able to randomly choose one from the list when a button is pressed. How would you do that in Android?

推荐答案

做这样的事情你onClickListener在

Do something like this inside your onClickListener

Random rand = new Random();
int selector = rand.nextInt(yourList.length);
yourList.get(selector);

类似的东西。

编辑：其实，如果它是一个ArrayList，那么这将是更喜欢这种

Actually if it is an ArrayList then it will be more like this

Random rand = new Random();
int selector = rand.nextInt(yourList.size());
yourList.get(selector);

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