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    <p>You could switch the activity's entire content view to a new view or layout resource in your <code>onItemSelected</code> callback by using <a href="http://developer.android.com/reference/android/app/Activity.html#setContentView%28android.view.View%29" rel="noreferrer"><code>Activity.setContentView()</code></a>, but I expect that isn't quite what you want as it would replace the spinner itself.</p> <p>How about adding/replacing a child view into your activity's content view? This could be a view inflated from an XML resource, and they could share some view IDs to cut down on the code required (or you could delegate the behaviour to separate classes).</p> <p>For example:</p> <p><code>main.xml</code>:</p> <pre><code>&lt;LinearLayout ...&gt; &lt;!-- Root element --&gt; &lt;!-- Put your spinner etc here --&gt; &lt;FrameLayout android:layout_height="fill_parent" android:layout_width="fill_parent" android:id="@+id/search_criteria_area" /&gt; &lt;/LinearLayout&gt; </code></pre> <p><code>search1.xml</code>:</p> <pre><code>&lt;!-- Contents for first criteria --&gt; &lt;LinearLayout ...&gt; &lt;TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#ffff0000" android:id="@+id/search_content_text" /&gt; &lt;/LinearLayout&gt; </code></pre> <p><code>search2.xml</code>:</p> <pre><code>&lt;!-- Contents for second criteria --&gt; &lt;LinearLayout ...&gt; &lt;TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#ff00ff00" android:id="@+id/search_content_text" /&gt; &lt;/LinearLayout&gt; </code></pre> <p>Then in your activity, you could switch between them like so:</p> <pre><code>public class SearchActivity extends Activity { // Keep track of the child view with the search criteria. View searchView; @Override public void onItemSelected(AdapterView&lt;?&gt; parent, View view, int position, long id) { ViewGroup searchViewHolder = (ViewGroup)findViewById(R.id.search_criteria_area); if (searchView != null) { searchViewHolder.removeView(searchView); } int searchViewResId; switch(position) { case 0: searchViewResId = R.layout.search1; break; case 1: searchViewResId = R.layout.search2; break; default: // Do something sensible } searchView = getLayoutInflater().inflate(searchViewResId, null); searchViewHolder.addView(searchView); TextView searchTextView = (TextView)searchView.findViewById(R.id.search_content_text); searchTextView.setText("Boosh!"); } } </code></pre>
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    1. COthanks so much, this will work very nicely
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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