Set additional input method subtypes. Only a process which shares the same uid with the IME can add additional input method subtypes to the IME. Please note that a subtype's status is stored in the system. For example, enabled subtypes are remembered by the framework even after they are removed by using this method. If you re-add the same subtypes again, they will just get enabled. If you want to avoid such conflicts, for instance, you may want to create a "different" new subtype even with the same locale and mode, by changing its extra value. The different subtype won't get affected by the stored past status. (You may want to take a look at InputMethodSubtype.hashCode() to refer to the current implementation.)

[Android Documentation]