如何显示弹出消息，而无需上下文上下文、弹出、消息
我们正在开发将在两个 JVM 和的Android 使用的库。现在，我们需要实现试用期的通知。在其他平台（.NET和Mac），显示一个弹出消息框就足够了。但到目前为止，我无法找到一个方法来为Android做到这一点。
We are developing a library that will be used both in JVM and Android. And now we need to implement trial period notification. In other platforms (.Net and Mac) showing a popup message box was enough. But so far I cannot find a way to do this for Android.
问题是显示一些信息（烤面包或AlertDialog），我需要有一个实际的上下文。但由于我们的库不包含UI元素并没有涉及到任何方式UI，我们并不要求用户创建了组件时，通过上下文。
The problem is that to show some message (toast or AlertDialog), I need to have an actual context. But since our library doesn't contain UI elements and not related to UI in any way we are not asking a user to pass context when creating out components.
要短：
我该怎么让敬酒（AlertDialog，通知），而无需从用户code通过上下文REFFERENCE。如果我不能，也许有人有在Android和Java实现审判模式更好的解决方案。推荐答案
看样子，你真的不能表现出既不敬酒也不AlertDialog无需上下文。最紧密变体是提供您的图书馆的一些接口，用户应该执行。
It appears that you really can't show neither Toast nor AlertDialog without having a context. The most close variant is to provide some interface in your library that user should implement.
