如何确定一个额外的由意向举行了包的类型？ [英] How to determine the type of an extra in a bundle held by intent?

问题描述

我想任意数据传递给的BroadcastReceiver 通过意图。

I am trying to pass arbitrary data to a BroadcastReceiver through its Intent.

所以，我可能会做一些类似以下

So I might do something like the following

intent.putExtra("Some boolean", false);
intent.putExtra("Some char", 'a');
intent.putExtra("Some String", "But don't know what it will be");
intent.putExtra("Some long", 15134234124125);

然后把它传递给的BroadcastReceiver

我想通过来迭代Intent.getExtras（）的东西，如键设置（），但我也希望能够拿到钥匙的价值，而不必硬code调用像方法.getStringExtra（）或。 getBooleanExtra（）。

I want to iterate through Intent.getExtras() with something like keySet(), but I would also like to be able to get the value of the key without having to hard-code calls to methods like .getStringExtra(), or .getBooleanExtra().

人如何做到这一点？

推荐答案

您可以使用下面的code得到来自任何时候一个对象意图：

You can use the following code to get an object of any time from the Intent:

Bundle bundle = intent.getExtras();
Object value = bundle.get("key");

然后你就可以判断值的使用对象实型的方法。

Then you can determine value's real type using Object's methods.

这篇关于如何确定一个额外的由意向举行了包的类型？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！