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POCustomize the ListView in a Fragment-based Master-Detail Flow?
 

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  1. POCustomize the ListView in a Fragment-based Master-Detail Flow?
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    <p>I found the template that ADT generates for a Master/Detail Flow Activity to be rather obtuse, and I don't like the fact that the ListView is not declared in a layout file which forces me to work with it programatically. For example, instead of just setting <code>android:background</code> on the ListView in a layout file, I'm forced to find the ListView via findViewById in the fragment's <code>onCreateView(...)</code> method, then call <code>setBackground(...)</code>. For maintainability and general readability, I'd like to do the same thing via a layout file.</p> <p>Instead, I'm trying to inflate a custom layout in the <code>onCreateView</code> method of the "master" fragment:</p> <pre><code>public class InboxFragment extends ListFragment { public InboxFragment() {} private ListView listView = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { listView = (ListView) inflater.inflate(R.layout.inbox_fragment_layout, null); return listView; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); // the following doesn't work listView.setAdapter(new ArrayAdapter&lt;DummyContent.DummyItem&gt;(getActivity(), android.R.layout.simple_list_item_activated_1, android.R.id.text1, DummyContent.ITEMS)); // nor does this //setListAdapter(new ArrayAdapter&lt;DummyContent.DummyItem&gt;(getActivity(), // android.R.layout.simple_list_item_activated_1, // android.R.id.text1, // DummyContent.ITEMS)); } } </code></pre> <p>However, calling <code>setListAdapter</code> (or even <code>setAdapter</code>) doesn't seem to do anything, even though I've given the ListView an id of <code>android:id="@id/android:list"</code> in <code>R.layout.inbox_fragment_layout</code>:</p> <pre><code>&lt;ListView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@id/android:list" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#D3D3D3" /&gt; </code></pre> <p>My "master" activity just calls a fragment layout:</p> <pre><code>public class InboxActivity extends FragmentActivity { @Override protected void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.inbox_phone_layout); } } </code></pre> <p>inbox_phone_layout.xml:</p> <pre><code>&lt;fragment xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/fragmentPhoneInbox" android:name="com.justin.inbox.InboxFragment" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" /&gt; </code></pre> <p>Instead, I'm greeted with a blank page and it doesn't look like the ListView is loaded at all. What am I doing wrong, here? <a href="https://github.com/justingarrick/fragmented-master-detail" rel="nofollow">Sample project on GitHub</a>.</p>
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    1. USJustin Garrick
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    1. COWhy does your fragment have a width of 0dp and a weight of 1? Weights are only valid within a LinearLayout
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      1. POCustomize the ListView in a Fragment-based Master-Detail Flow?
      1. USdrewhannay
 

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