title: Can not import com.google.android.maps.MapActivity
body: <p>I try to <strong>import com.google.android.maps.MapActivity</strong> but my program can not recognize it. I also have <code>&lt;uses-library android:name="com.google.android.maps" /&gt;</code>
  and set the apiKey in my project.</p>
  
  <p>Can anybody explain why I can import the above line?
  Thanks in advance.</p>