This class provides the function for launching the input method editor (IME) list and selector settings. A user can manage the installed IMEs in the system. The input method editor (IME) is an input panel that lets users provide an input and the platform to receive the text data entered. The manager is a module for managing the installed IMEs. IME developers can use this module to open the installed IME list or the selector menu after their IME installation, and then guide to select the installed IME.