Android: this.getApplication () возвращает Нулевого указателя

Я подразумеваю, что Вы включаете некоторый код для вещей, необходимо сделать функцию вызываемой, когда связано с ключом - вещи как получение аргумента от CTRL-u.

Взглянули на CTRL-h f interactive для деталей:

    interactive is a special form in `C source code'.
    (interactive args)

    Specify a way of parsing arguments for interactive use of a function.
    For example, write
      (defun foo (arg) "Doc string" (interactive "p") ...use arg...)
    to make ARG be the prefix argument when `foo' is called as a command.
    The "call" to `interactive' is actually a declaration rather than a function;
     it tells `call-interactively' how to read arguments
     to pass to the function.
    When actually called, `interactive' just returns nil.

    The argument of `interactive' is usually a string containing a code letter
     followed by a prompt.  (Some code letters do not use I/O to get
     the argument and do not need prompts.)  To prompt for multiple arguments,
     give a code letter, its prompt, a newline, and another code letter, etc.
     Prompts are passed to format, and may use % escapes to print the
     arguments that have already been read.