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    <p>Take a look at these Fragment topics:</p> <ul> <li><a href="http://developer.android.com/guide/topics/fundamentals/fragments.html#Adding">Programmatically add the fragment to an existing ViewGroup</a></li> <li><a href="http://developer.android.com/guide/topics/fundamentals/fragments.html#CommunicatingWithActivity">Communicating with the Activity</a></li> </ul> <p>Essentially you'll want to have the <em>left</em> fragment tell the parent Activity which item is selected. Then, the Activity can add/remove the correct fragment in the <em>right</em> pane.</p> <p>Keep in mind that creating/destroying a Fragment is a lot of work for the system. If you can get away with having a single Fragment in the right pane, it will be much more efficient. You can then call methods on that one Fragment instance without building new Fragments.</p> <p>EDIT (example):</p> <p>Your Main Activity implementation with custom method:</p> <pre><code>public class Main extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } /** Called by the left fragment */ public void updateRightPane(long id) { // Get the data with the selected item id // ... // Create a new fragment MyFragment fragment = new MyFragment(data); // Update the layout FragmentManager fm = getFragmentManager(); FragmentTransaction ft = fm.beginTransaction(); // The id specified here identifies which ViewGroup to // append the Fragment to. ft.add(R.id.view_group_id, fragment); ft.commit(); } } </code></pre> <p>The <code>onListItemClick</code> implementation for <code>MenuFragment.java</code>:</p> <pre><code>@Override public void onListItemClick(ListView l, View v, int position, long id) { super.onListItemClick(l, v, position, id); // Get the parent Activity Main activity = (Main) getActivity(); // Pass the selected item id to the Activity method // Note: Feel free to update this method to accept additional // arguments (e.g. position). activity.updateRightPane(id); } </code></pre> <p>Finally, your layout file:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/view_group_id" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical"&gt; &lt;!-- More views here... --&gt; &lt;/RelativeLayout&gt; </code></pre>
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    1. POProgramatically add fragments to viewgroup
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    1. COThanks, just a followup: 1) how do i tell the onlistitemclick in my listfragment to change the right pane view to load another fragment and layout? 2) I don't need to destroy fragments, i can just put them in the backstack if that's easier on the memory. Basically I want only one "DetailsFragment" to be shown on the right, namely the last one the user clicked on in the list.
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    2. COYour ListFragment has a [getActivity][1] method. You can write a public method on the host Activity that accepts some argument and will change the right pane when invoked. Call `getActivity` from your left Fragment's onListItemClick listener and cast the result to the parent Activity type. Then invoke your public method. Something like `updateDetailsPane(long id)` should work. `MyActivity activity = (MyActivity) getActivity();` [1]: http://developer.android.com/reference/android/app/Fragment.html#getActivity%28%29
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    3. COI posted my code in the edit, i understand logically what you say but not how to implement it codewise. Please help :S
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Guidance
A row detail

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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