title: setSupportBackgroundTintList states not working
body: <p>I created a MyButton class which extends AppCompat button. In my onstructors I execute this code:</p>
  
  <pre><code>    int[][] states = new int[][]{
              new int[]{android.R.attr.state_enabled}, // enabled
              new int[]{android.R.attr.state_pressed}  // pressed
      };
  
      int[] colors = new int[]{
              ContextCompat.getColor(context, R.color.tint),
              ContextCompat.getColor(context, R.color.primary),
      };
  
      setSupportBackgroundTintList(new ColorStateList(states, colors));
  </code></pre>
  
  <p>Unfortunately the states are not working. The button only shows the enabled color. I'm using the newest appcompat libs and also tried older ones</p>
  
  <pre><code>compile 'com.android.support:appcompat-v7:23.1.1'  //also tried 23.0.1
  compile 'com.android.support:design:23.1.1'        //also tried 23.0.1
  </code></pre>
  
  <p>What am I doing wrong?</p>