title: Using Cardslib: "CardView cannot be cast to CardNativeView"
body: <p>i just implemented <a href="https://github.com/gabrielemariotti/cardslib" rel="nofollow">Cardslib</a> in my code.</p>
  
  <p>I'm using the following code to implement TopColoredCard:</p>
  
  <pre><code>ArrayList&lt;Card&gt; cards = initCard();
  updateAdapter(cards);    
  
  ...
  
  private ArrayList&lt;Card&gt; initCard() {
      //Init an array of Cards
      ArrayList&lt;Card&gt; cards = new ArrayList&lt;&gt;();
      for (int i = 0; i &lt; AppData.mTitles.length; i++) {
          TopColoredCard card = new TopColoredCard(getApplicationContext());
          card.setColorResourceId(AppData.mColors[i]);
          card.setTitleOverColor(AppData.mTitles[i]);
          card.setSubTitleOverColor(subTitle(i));
          cards.add(card);
      }
      return cards;
  }
  </code></pre>
  
  <p>And implemented:</p>
  
  <pre><code>compile 'com.android.support:cardview-v7:21.0.3'
  compile 'com.github.gabrielemariotti.cards:cardslib-core:2.0.1'
  compile 'com.github.gabrielemariotti.cards:cardslib-recyclerview:2.0.1'
  compile 'com.github.gabrielemariotti.cards:cardslib-cards:2.0.1'
  </code></pre>
  
  <p>It works well on Android 5.0 and higher.
  On lower Versions I get the following error:</p>
  
  <pre><code>java.lang.ClassCastException: it.gmariotti.cardslib.library.view.CardView cannot be cast to it.gmariotti.cardslib.library.view.CardViewNative
          at it.gmariotti.cardslib.library.cards.topcolored.TopColoredCard.setupInnerViewElements(TopColoredCard.java:206)
          at it.gmariotti.cardslib.library.internal.Card.getInnerView(Card.java:293)
          at it.gmariotti.cardslib.library.view.CardView.setupMainView(CardView.java:379)
          at it.gmariotti.cardslib.library.view.CardView.buildUI(CardView.java:282)
          at it.gmariotti.cardslib.library.view.CardView.setCard(CardView.java:242)
          at it.gmariotti.cardslib.library.recyclerview.internal.BaseRecyclerViewAdapter.onBindViewHolder(BaseRecyclerViewAdapter.java:124)
          at it.gmariotti.cardslib.library.recyclerview.internal.BaseRecyclerViewAdapter.onBindViewHolder(BaseRecyclerViewAdapter.java:38)
          at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:4138)
          at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3448)
          at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3340)
          at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1810)
          at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1306)
          at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1269)
          at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:523)
          at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:1988)
          at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:2237)
          at android.view.View.layout(View.java:14817)
          at android.view.ViewGroup.layout(ViewGroup.java:4631)
          at android.support.v4.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:561)
          at android.view.View.layout(View.java:14817)
          at android.view.ViewGroup.layout(ViewGroup.java:4631)
          at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1055)
          at android.view.View.layout(View.java:14817)
          at android.view.ViewGroup.layout(ViewGroup.java:4631)
          at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
          at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
          at android.view.View.layout(View.java:14817)
          at android.view.ViewGroup.layout(ViewGroup.java:4631)
          at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
          at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
          at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
          at android.view.View.layout(View.java:14817)
          at android.view.ViewGroup.layout(ViewGroup.java:4631)
          at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
          at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
          at android.view.View.layout(View.java:14817)
          at android.view.ViewGroup.layout(ViewGroup.java:4631)
          at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
          at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
          at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
          at android.view.View.layout(View.java:14817)
          at android.view.ViewGroup.layout(ViewGroup.java:4631)
          at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
          at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
          at android.view.View.layout(View.java:14817)
          at android.view.ViewGroup.layout(ViewGroup.java:4631)
          at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1987)
          at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1744)
          at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
          at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
          at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
          at android.view.Choreographer.doCallbacks(Choreographer.java:574)
          at android.view.Choreographer.doFrame(Choreographer.java:544)
      at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
  </code></pre>
  
  <p>I think it is a bug of the lib, because it works on API lvl. 20 but it doesn't work on lower version.</p>
  
  <p>Maybe anyone of you can help me.</p>
  
  <p>Lucas :)</p>
  
  <p>//EDIT:
  This is my layout.xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:background="@color/background_material_light"
      android:layout_width="match_parent"
      android:layout_height="match_parent"&gt;
      &lt;include
          android:id="@+id/toolbar_actionbar"
          layout="@layout/toolbar_default"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"/&gt;
      &lt;android.support.v4.widget.SwipeRefreshLayout
          android:id="@+id/swipeRefreshLayout"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:layout_below="@id/toolbar_actionbar"&gt;
          &lt;view
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              class="it.gmariotti.cardslib.library.recyclerview.view.CardRecyclerView"
              android:id="@+id/recycler" /&gt;
      &lt;/android.support.v4.widget.SwipeRefreshLayout&gt;
  
  
  &lt;/RelativeLayout&gt;
  </code></pre>