title: How can I set drawable to a ListView in android
body: <p>I am writing a app for android 1.5.
   I want to use a complex listview to display my data.
   I want to show a ImageView of a drawable object in my List item.</p>
  
  <p>I learned from a demo:</p>
  
  <pre><code>------&gt; listData.put("Img", listData.put("Img", R.drawable.XXX));
  listData.put("Time", "100");
  listItems.add(listData);
  </code></pre>
  
  <p>It can display correctly, however, I want to change Img at runtime, The image maybe generated at run-time, so I change the code as follow, but it falls.
  Can anyone help me ? many thanks!</p>
  
  <pre><code>protected void onCreate(Bundle savedInstanceState) {
      // TODO Auto-generated method stub
      super.onCreate(savedInstanceState);
      setContentView(R.layout.item_list);
      itemListView = (ListView) findViewById(R.id.listview);
      ArrayList&lt;HashMap&lt;String, Object&gt;&gt; listItems = new ArrayList&lt;HashMap&lt;String, Object&gt;&gt;();
      for(int i = 0;i &lt;XXX.size(); ++i) {
          HashMap&lt;String, Object&gt; listData = new HashMap&lt;String, Object&gt;();
  ---------&gt;/*1)*/  listData.put("Img", new Drawable(XXX));
          /*2)*/  listData.put("Time", "100");
          /*3)*/  listItems.add(listData);
      }
      SimpleAdapter listItemAdapter = new SimpleAdapter(this, listItems, R.layout.listitem, new String[] { "Img", "Time"}, new int[] { R.id.listitem_img, R.id.listitem_time });
      itemListView.setAdapter(listItemAdapter);
  }
  </code></pre>
  
  <p>listitem.xml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout 
      android:layout_width="fill_parent" 
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_height="wrap_content" 
      android:paddingBottom="4dip"
      android:paddingLeft="12dip" 
      android:paddingRight="12dip"&gt;
  
      &lt;ImageView 
          android:id="@+id/listitem_img"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:paddingTop="12dip"/&gt;
  
      &lt;TextView
          android:id="@+id/listitem_time" 
          android:layout_height="wrap_content"
          android:layout_width="wrap_content"
          android:textSize="20dip" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>