title: Round corner button: Where am I wrong
body: <p>I want to create <strong>round corner</strong> button. This is what I tried:</p>
  
  <p>I have defined the button's background drawable <strong>button_bg.xml</strong> :</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;selector xmlns:android="http://schemas.android.com/apk/res/android"&gt;
      &lt;item
          android:state_enabled="false"
          android:drawable="@color/grey"&gt;
  
          &lt;shape&gt;
            &lt;solid
                android:color="#ef4444" /&gt;
            &lt;stroke
                android:width="1dp"
                android:color="#992f2f" /&gt;
            &lt;corners
                android:radius="16dp" /&gt;
          &lt;/shape&gt;
      &lt;/item&gt;
  
  
      &lt;item
          android:state_pressed="true"
          android:state_enabled="true"
          android:drawable="@color/dark_grey"
      &gt;
          &lt;shape&gt;
            &lt;solid
                android:color="#ef4444" /&gt;
            &lt;stroke
                android:width="1dp"
                android:color="#992f2f" /&gt;
            &lt;corners
                android:radius="16dp" /&gt;
          &lt;/shape&gt;
      &lt;/item&gt;
  
  
      &lt;item
          android:state_enabled="true"
          android:drawable="@color/blue"
      &gt;
          &lt;shape&gt;
            &lt;solid
                android:color="#ef4444" /&gt;
            &lt;stroke
                android:width="1dp"
                android:color="#992f2f" /&gt;
            &lt;corners
                android:radius="16dp" /&gt;
          &lt;/shape&gt;
  
      &lt;/item&gt;
  &lt;/selector&gt;
  </code></pre>
  
  <p>Then, I apply it to my button in layout file:</p>
  
  <pre><code>&lt;Button
        android:text="@string/press_me"
        android:layout_margin="12dp"
        android:layout_width="fill_parent"
        android:layout_height="30dp"
  
        android:background="@drawable/button_bg"
  /&gt;
  </code></pre>
  
  <p>But my button is still showing sharp corner instead of the round one, why?? </p>
  
  <p>(Please <strong>don't just throw me a link</strong> about how to make round corner, my above code followed those tutorials, I just want to know where am I wrong. Thanks)</p>