title: Android MVP variable getter inside Presenter
body: <p>I have a special case in my project that relies on MVP pattern.</p>
  <p>The use case is that when clicking a button an contact email should be sent.
  The email is created dynamically, a combination from some input fields and some data from repository and string resources.</p>
  <p>The flow starts like this:</p>
  <p><strong>Fragment/View</strong>:</p>
  <pre><code>sendButton.setOnClickListener { presenter.onSendButtonClick(
      emailField.text.toString(),
      questionField.text.toString(),
      getSubjectWithTimeStamp(presenter.getMyObject(), getString(R.string.app_name))
  )}
  
  private fun getMailSubjectTimeStamp(object: MyObject? = null, appName: String): String {
      val timeStamp = MAIL_SUBJECT_TIMESTAMP_FORMAT.format(Date())
      return if (object != null) {
          getString(
              R.string.help_contactForm_subject_with_data,
              appName,
              object.someInfo,
              timeStamp
          )
      } else {
          getString(
              R.string.help_contactForm_subject,
              appName,
              timeStamp
          )
      }
  }
  </code></pre>
  <p><strong>Presenter</strong>:</p>
  <pre><code>private var lastKnownObject: MyObject? = null
  
  override fun onBound(view: ContactContract.View) {
      super.onBound(view)
      scope.launch {
          // This is fetched from DB behind the scene via the Interactor.
          lastKnownObject = myObjectInteractor.readLastKnownObject()
      }
  }
  
  override fun getLastKnownObject(): MyObject? {
      return lastKnownObject
  }
  
  override fun onSendButtonClick(userMail: String, questionText: String, subject: String) {
      sendMailAndShowFeedback(userMail, questionText, subject)
  }
  </code></pre>
  <p>This works, but I'm not very happy with the fact that I need to expose a variable from my presenter and manually access it before triggering the flow with <code>onSendButtonClick</code>.
  Any other ideas on how to achieve this kind of combination and still have my separation of concerns?</p>