title: Android: how to make a custom dialog over the app screen?
body: <p>I want to add a step-by-step Quick Start to my application. I want to do something like this:</p>
  <p><a href="https://i.stack.imgur.com/lKJYZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lKJYZ.png" alt="Screenshot" /></a></p>
  <p>This dialog window:</p>
  <ol>
  <li>Is shown over the application screen, not full screen.</li>
  <li>Contains a title, a content area with a picture and text, and &quot;Prev&quot; and &quot;Next&quot; buttons. At the first step there is only a &quot;Next&quot; button, on the last screen instead of the &quot;Next&quot; button there is a &quot;Finish&quot; button.</li>
  <li>When you press the &quot;Back&quot; button on your smartphone or when you touch the screen outside of this window, it closes.</li>
  </ol>
  <p>What is the easiest way to make such a step-by-step guide?</p>