Returns the localized name of the active input method, or null if none is active.
Input methods are distinct from keyboard layouts. They provide complex character
composition such as CJK input. Returns null when using a plain keyboard layout
with no input method overlay.
Returns string|null
The display name of the active input method (e.g. "Hiragana"), or null.
Returns the localized name of the active input method, or
nullif none is active. Input methods are distinct from keyboard layouts. They provide complex character composition such as CJK input. Returnsnullwhen using a plain keyboard layout with no input method overlay.