title: Android full-screen dialog callback issue
body: <p>I am having trouble wrapping my head around something but let me first describe my setup:</p>
  
  <p><img src="https://i.stack.imgur.com/BlEIY.png" alt="flow"></p>
  
  <p>I have an activity that references 3  fragments, each one of them get shown at the correct time. This is how the ChildrenSpecificationFragment looks:</p>
  
  <p><img src="https://i.stack.imgur.com/nlZ13.png" width="300"/></p>
  
  <p>If the user clicks the floating action button the following DialogFragment opens:</p>
  
  <p><img src="https://i.stack.imgur.com/Zt3nz.png" width="300"/></p>
  
  <p>I found the following information in the new material design guidelines: <a href="https://www.google.com/design/spec/components/dialogs.html#dialogs-full-screen-dialogs" rel="nofollow noreferrer">https://www.google.com/design/spec/components/dialogs.html#dialogs-full-screen-dialogs</a></p>
  
  <blockquote>
    <p>Avoid dialogs that:
    Open additional dialogs from within a dialog.
    Contain scrolling content, particularly alerts. Instead, consider alternate containers or layouts that are optimized for reading or interacting with significant amounts of content.</p>
    
    <p>Exceptions include:Full-screen dialogs may open additional dialogs, such as pickers, because their design accommodates additional layers of material without significantly increasing the app’s perceived z-depth or visual noise.</p>
  </blockquote>
  
  <p>This is where my problems begin. The 'add child' dialog has scrollable content (in landscape mode) and when the user clicks 'Birth date' a date picker opens.</p>
  
  <p>I am trying to find a way to implement a full screen dialog (as in the guidelines) that has a callback to the ChildrenSpecificationFragment, so that I can add the child to the RecyclerView .</p>
  
  <p>I hope that my questing is clear and would greatly appreciate any input that would lead me to the solution. Thanks in Advance!</p>