How to disable spelling corrections programmatically in Android
Set this in your layout's xml for your EditText:
android:inputType="textNoSuggestions"
Or call setInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS)
in your Activity'
If you need to support API 4 and below, use android:inputType="textFilter"
If setting:
android:inputType="textNoSuggestions"
still doesn't work (and your text field is small), a quick work-around is to use:
android:inputType="textVisiblePassword"