Address book list

src/i2p/bote/android/addressbook/AddressBookFragment.java

@@ -0,0 +1,139 @@
+package i2p.bote.android.addressbook;
+
+import i2p.bote.I2PBote;
+import i2p.bote.android.R;
+import i2p.bote.android.util.BetterAsyncTaskLoader;
+import i2p.bote.fileencryption.PasswordException;
+import i2p.bote.packet.dht.Contact;
+
+import java.util.SortedSet;
+
+import android.app.Activity;
+import android.content.Context;
+import android.os.Bundle;
+import android.support.v4.app.ListFragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.Loader;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.ListView;
+
+public class AddressBookFragment extends ListFragment implements
+        LoaderManager.LoaderCallbacks<SortedSet<Contact>> {
+    OnContactSelectedListener mCallback;
+    private ContactAdapter mAdapter;
+
+    // Container Activity must implement this interface
+    public interface OnContactSelectedListener {
+        public void onContactSelected(Contact contact);
+    }
+
+    @Override
+    public void onAttach(Activity activity) {
+        super.onAttach(activity);
+
+        // This makes sure that the container activity has implemented
+        // the callback interface. If not, it throws an exception
+        try {
+            mCallback = (OnContactSelectedListener) activity;
+        } catch (ClassCastException e) {
+            throw new ClassCastException(activity.toString()
+                    + " must implement OnContactSelectedListener");
+        }
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        mAdapter = new ContactAdapter(getActivity());
+
+        setListAdapter(mAdapter);
+
+        setListShown(false);
+        setEmptyText(getResources().getString(
+                R.string.address_book_empty));
+        getLoaderManager().initLoader(0, null, this);
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        inflater.inflate(R.menu.address_book_list, menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+        case R.id.action_new_contact:
+            // TODO
+            return true;
+        default:
+            return super.onOptionsItemSelected(item);
+        }
+    }
+
+    @Override
+    public void onListItemClick(ListView parent, View view, int pos, long id) {
+        mCallback.onContactSelected(mAdapter.getItem(pos));
+    }
+
+    // LoaderManager.LoaderCallbacks<SortedSet<Contact>>
+
+    public Loader<SortedSet<Contact>> onCreateLoader(int id, Bundle args) {
+        return new AddressBookLoader(getActivity());
+    }
+
+    private static class AddressBookLoader extends BetterAsyncTaskLoader<SortedSet<Contact>> {
+        public AddressBookLoader(Context context) {
+            super(context);
+        }
+
+        @Override
+        public SortedSet<Contact> loadInBackground() {
+            SortedSet<Contact> contacts = null;
+            try {
+                contacts = I2PBote.getInstance().getAddressBook().getAll();
+            } catch (PasswordException e) {
+                // TODO handle, but should not get here
+                e.printStackTrace();
+            }
+            return contacts;
+        }
+
+        @Override
+        protected void onStartMonitoring() {
+        }
+
+        @Override
+        protected void onStopMonitoring() {
+        }
+
+        @Override
+        protected void releaseResources(SortedSet<Contact> data) {
+        }
+    }
+
+    @Override
+    public void onLoadFinished(Loader<SortedSet<Contact>> loader,
+            SortedSet<Contact> data) {
+        mAdapter.setData(data);
+
+        if (isResumed()) {
+            setListShown(true);
+        } else {
+            setListShownNoAnimation(true);
+        }
+    }
+
+    @Override
+    public void onLoaderReset(Loader<SortedSet<Contact>> loader) {
+        mAdapter.setData(null);
+    }
+}