How to post a message on my Facebook wall?

All Facebook SDKs for Android require an "application key", which I assume is the API key for 开发者_开发技巧a facebook application that must be created on Facebook. Since all I want is to post to my wall without dealing with Facebook applications, is there an SDK for Android that doesn't require these api keys?

You'll need API key anyway. It's free and you can get it right now. It's not actually a problem. Android/Java -- Post simple text to Facebook wall?

You can use the Share Widget to post to Facebook wall without creating an application.