Controlling clear button

this is an amazing searchview with multi-functionalities, but there is missing an option for controlling CLEAR button. i've changed `.setClearIcon() ` to search icon but i am unable to control this function.
what i want is, when user type more than 3 keywords CLEAR icon should be changed into SEARCH icon and it should be controllable through `onButtonClicked()` method of `setOnSearchActionListener()` , so that's why i changed only icon through `onTextChanged()` .

Start by locating the SearchView clear-button handling and the setOnSearchActionListener/onButtonClicked path mentioned in the issue. Trace how onTextChanged currently changes the icon, then make the button action controllable when the query exceeds three keywords; done means the changed icon triggers the intended callback behavior.

Written by the indexing model from the issue text.