org.wheelmap.android.fragment.POIsListFragment.java Source code

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Here is the source code for org.wheelmap.android.fragment.POIsListFragment.java

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/*
 * #%L
 * Wheelmap - App
 * %%
 * Copyright (C) 2011 - 2012 Michal Harakal - Michael Kroez - Sozialhelden e.V.
 * %%
 * Wheelmap App based on the Wheelmap Service by Sozialhelden e.V.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *         http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS-IS" BASIS
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */
package org.wheelmap.android.fragment;

import org.wheelmap.android.model.POIHelper;
import org.wheelmap.android.model.POIsListCursorAdapter;
import org.wheelmap.android.online.R;

import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.ListView;

import com.actionbarsherlock.app.SherlockListFragment;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;
import com.handmark.pulltorefresh.library.PullToRefreshListView;

public class POIsListFragment extends SherlockListFragment implements OnRefreshListener {
    public final static String TAG = "poislist";
    public final static String EXTRA_FIRST_VISIBLE_POSITION = "org.wheelmap.android.FIRST_VISIBLE_POSITION";
    public final static String EXTRA_CREATE_WORKER_FRAGMENT = "org.wheelmap.android.CREATE_WORKER_FRAGMENT";

    private POIsListWorkerFragment mWorkerFragment;
    private OnListFragmentListener mListener;

    private PullToRefreshListView mPullToRefreshListView;
    private int mFirstVisiblePosition = 0;
    private boolean mIsRecreated = false;

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

        if (activity instanceof OnListFragmentListener)
            mListener = (OnListFragmentListener) activity;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.d(TAG, "onCreate");

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View v = (LinearLayout) inflater.inflate(R.layout.fragment_list, container, false);
        mPullToRefreshListView = (PullToRefreshListView) v.findViewById(R.id.pull_to_refresh_listview);
        mPullToRefreshListView.setOnRefreshListener(this);

        return v;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        if (getArguments() == null || getArguments().getBoolean(EXTRA_CREATE_WORKER_FRAGMENT, true)) {
            FragmentManager fm = getFragmentManager();
            mWorkerFragment = (POIsListWorkerFragment) fm.findFragmentByTag(POIsListWorkerFragment.TAG);
            if (mWorkerFragment == null) {
                mWorkerFragment = new POIsListWorkerFragment();
                fm.beginTransaction().add(mWorkerFragment, POIsListWorkerFragment.TAG).commit();
                mWorkerFragment.setTargetFragment(this, 0);
            } else {
                mIsRecreated = true;
                mFirstVisiblePosition = savedInstanceState.getInt(EXTRA_FIRST_VISIBLE_POSITION, 0);
            }

            Log.d(TAG, "fragment is recreated - requesting persistent data");
            mWorkerFragment.setPersistentValues();
            getListView().setSelection(mFirstVisiblePosition);
        }

    }

    @Override
    public void onStart() {
        super.onStart();
    }

    @Override
    public void onResume() {
        super.onResume();
    }

    @Override
    public void onPause() {
        super.onPause();
    }

    @Override
    public void onStop() {
        super.onStop();
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
    }

    @Override
    public void onDetach() {
        super.onDetach();
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        saveListPosition();
        outState.putInt(EXTRA_FIRST_VISIBLE_POSITION, mFirstVisiblePosition);
        super.onSaveInstanceState(outState);
    }

    @Override
    public void onRefresh() {
        if (mWorkerFragment != null)
            mWorkerFragment.requestData();
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        saveListPosition();
        Cursor cursor = (Cursor) l.getAdapter().getItem(position);
        if (cursor == null)
            return;

        long poiId = POIHelper.getId(cursor);
        mListener.onWheelmapPOIClicked(poiId);

    }

    public void setAdapter(POIsListCursorAdapter adapter) {
        getListView().setAdapter(adapter);
    }

    private void saveListPosition() {
        mFirstVisiblePosition = getListView().getFirstVisiblePosition();
    }

    public void updateRefreshStatus(boolean status) {
        if (status)
            mPullToRefreshListView.setRefreshing();
        else
            mPullToRefreshListView.onRefreshComplete();
    }

    public interface OnListFragmentListener {
        public void onWheelmapPOIClicked(long id);
    }
}