title: java.lang.IllegalArgumentException: parameter must be a descendant of this view Error
body: <p>I have a strange Error with a ViewGroup.
  For my main View I use classes in this links <a href="https://github.com/pakerfeldt/android-viewflow" rel="noreferrer">ViewFlow project</a></p>
  
  <pre><code>    java.lang.IllegalArgumentException: parameter must be a descendant of this view
          at android.view.ViewGroup.offsetRectBetweenParentAndChild(ViewGroup.java:4153)
          at android.view.ViewGroup.offsetDescendantRectToMyCoords(ViewGroup.java:4090)
  at android.view.ViewRootImpl.scrollToRectOrFocus(ViewRootImpl.java:2129)
  at android.view.ViewRootImpl.draw(ViewRootImpl.java:1849)
  at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1641)
  at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2449)
  at android.os.Handler.dispatchMessage(Handler.java:99)
  at android.os.Looper.loop(Looper.java:137)
  at android.app.ActivityThread.main(ActivityThread.java:4424)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:511)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
  at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>This error happens when I try to go back to this view with an Intent or a finish(); method in an other View. When I use the Back Button it's not a problem.</p>
  
  <p>So i don't know why I have this Error.
  Thanks for your Help.</p>