[Android Studio] 코드로 키 패드 열기

For hiding keyboard:

    InputMethodManager imm = (InputMethodManager)getActivity().getSystemService( Context.INPUT_METHOD_SERVICE);
    imm.toggleSoftInput(InputMethodManager.HIDE_IMPLICIT_ONLY, 0);

For Showing keyboard:

    InputMethodManager imm = (InputMethodManager)getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);