how do I ceate a keyboard in android

I am creating an app that requires the user to type into an EditText. so开发者_JAVA百科metimes they need to type in a different language. the problem is, this language is not available on android, and I don't know how to customize my own keyboard. does anybody know how to do this?

http://developer.android.com/resources/samples/SoftKeyboard/index.html

http://developer.android.com/resources/articles/creating-input-method.html

These guides are made for this.