title: Changing NumberPicker divider color
body: <p>On recent android versions, <a href="http://developer.android.com/reference/android/widget/NumberPicker.html" rel="noreferrer">number pickers</a> use a blue divider when drawn (cf. image below).</p>
  
  <p><img src="https://i.stack.imgur.com/S3pei.png" alt="enter image description here"></p>
  
  <p>I would like to change this color. Is there a working solution? or perhaps a library that package an updated version of NumberPicker that allows customizing the divider color?</p>
  
  <p>I have tried <a href="https://github.com/SimonVT/android-numberpicker/" rel="noreferrer">android-numberpicker</a> but I get an error (see below) at runtime due to some code from the library that tries to access to a resource id that does not exist.</p>
  
  <pre><code>android.content.res.Resources$NotFoundException: Resource ID #0x0
          at android.content.res.Resources.getValue(Resources.java:1123)
          at android.content.res.Resources.loadXmlResourceParser(Resources.java:2309)
          at android.content.res.Resources.getLayout(Resources.java:939)
          at android.view.LayoutInflater.inflate(LayoutInflater.java:395)
          at net.simonvt.numberpicker.NumberPicker.&lt;init&gt;(NumberPicker.java:635)
          at net.simonvt.numberpicker.NumberPicker.&lt;init&gt;(NumberPicker.java:560)
          at net.simonvt.numberpicker.NumberPicker.&lt;init&gt;(NumberPicker.java:550)
  </code></pre>