下面才是真正的回答这个问题。

Here is the real answer to this question.

这是我很难找到：

首先，你需要：

单词添加到Android的UserDictionary

由于***在字典中的话，他们将出现在建议。

By having the words in the dictionary, they will show up in suggestions.

如果您而是要完全展现你的话，那么像自动完成下拉想法是一个更适合（即其他答案链接）

If you want to exclusively show your words however, then something like the auto-complete dropdown idea is a better fit (that the other answers linked)