Android's InputMethodService keyEventCode won't work

I'm trying to create my keyboard, and now am at the place when the pressed button should send the letter to the application.

In the examples I found

InputMethodService.sendDownUpKeyEvents(keyEventCode);

But couldn't really figure out, what should go into keyEven开发者_运维百科tCode?

For example, how do I send a letter "A" ?

edit: Just one more thing, here ( http://developer.android.com/reference/android/view/KeyEvent.html ) I can find only codes for english character. How do I get other unicode characters?

Thanks!

That function takes the constants from the KeyEvent class. To send a, use

sendDownUpKeyEvents(KeyEvent.KEYCODE_A);