Loader for email list

src/i2p/bote/FolderFragment.java

@@ -1,12 +1,23 @@
 package i2p.bote;
 
+import java.util.List;
+
+import i2p.bote.email.Email;
 import i2p.bote.folder.EmailFolder;
 import android.os.Bundle;
 import android.support.v4.app.ListFragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.Loader;
 
-public class FolderFragment extends ListFragment {
+public class FolderFragment extends ListFragment implements
+        LoaderManager.LoaderCallbacks<List<Email>> {
     public static final String FOLDER_NAME = "folder_name";
 
+    private static final int EMAIL_LIST_LOADER = 1;
+
+    private EmailListAdapter mAdapter;
+    private EmailFolder mFolder;
+
     public static FolderFragment newInstance(String folderName) {
         FolderFragment f = new FolderFragment();
         Bundle args = new Bundle();
@@ -16,10 +27,37 @@ public class FolderFragment extends ListFragment {
     }
 
     @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        mAdapter = new EmailListAdapter(getActivity());
         String folderName = getArguments().getString(FOLDER_NAME);
-        EmailFolder folder = BoteHelper.getMailFolder(folderName);
+        mFolder = BoteHelper.getMailFolder(folderName);
+
+        setListAdapter(mAdapter);
+
+        setListShown(false);
+        if (mFolder != null)
+            getLoaderManager().initLoader(EMAIL_LIST_LOADER, null, this);
+    }
+
+    // LoaderManager.LoaderCallbacks<List<Email>>
+
+    public Loader<List<Email>> onCreateLoader(int id, Bundle args) {
+        return new EmailListLoader(getActivity(), mFolder);
+    }
+
+    public void onLoadFinished(Loader<List<Email>> loader,
+            List<Email> data) {
+        mAdapter.setData(data);
+
+        if (isResumed()) {
+            setListShown(true);
+        } else {
+            setListShownNoAnimation(true);
+        }
+    }
+
+    public void onLoaderReset(Loader<List<Email>> loader) {
+        mAdapter.setData(null);
     }
 }