org.projecthdata.ehr.viewer.fragments.WeightFragment.java Source code

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Here is the source code for org.projecthdata.ehr.viewer.fragments.WeightFragment.java

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/*
 * Copyright 2011 The MITRE Corporation
 *
 * 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.
 */
package org.projecthdata.ehr.viewer.fragments;

import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import org.projecthdata.ehr.viewer.R;
import org.projecthdata.ehr.viewer.database.EhrDatabaseHelper;
import org.projecthdata.ehr.viewer.model.WeightReading;
import org.projecthdata.ehr.viewer.service.WeightSyncService;
import org.projecthdata.ehr.viewer.util.Constants;
import org.projecthdata.ehr.viewer.util.Constants.SyncState;
import org.projecthdata.ehr.viewer.widget.WeightReadingListAdapter;
import org.projecthdata.hhub.HHubApplication;
import org.projecthdata.hhub.database.OrmManager;
import org.springframework.social.connect.ConnectionRepository;

import com.j256.ormlite.dao.Dao;

import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.ListFragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ViewSwitcher;

public class WeightFragment extends ListFragment implements OnSharedPreferenceChangeListener {
    private SharedPreferences prefs = null;
    private ViewSwitcher switcher = null;
    protected ConnectionRepository connectionRepository = null;
    private WeightReadingListAdapter adapter = null;
    private EhrDatabaseHelper ehrDatabaseHelper = null;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.weight, null);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        this.ehrDatabaseHelper = new EhrDatabaseHelper(getActivity());
        this.prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
        prefs.registerOnSharedPreferenceChangeListener(this);
        this.switcher = (ViewSwitcher) (getActivity().findViewById(R.id.weight_view_switcher));

        // initialize the utilities for communicating with the hData server
        this.connectionRepository = ((HHubApplication) getActivity().getApplicationContext())
                .getConnectionRepository();

        adapter = new WeightReadingListAdapter(getActivity(), new ArrayList<WeightReading>());
        setListAdapter(adapter);
    }

    @Override
    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
        if (key.equals(Constants.PREF_WEIGHT_SYNC_STATE)) {
            updateListData();
            updateSwitcher();
        }

    }

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

    private void updateListData() {
        try {
            Dao<WeightReading, Integer> weightDao = this.ehrDatabaseHelper.getWeightReadingDao();

            List<WeightReading> readings = weightDao
                    .query(weightDao.queryBuilder().orderBy(WeightReading.COLUMN_DATE_TIME, false).prepare());

            adapter = new WeightReadingListAdapter(getActivity(), readings);
            setListAdapter(adapter);

        } catch (SQLException e) {
            Log.e(getClass().getSimpleName(), Log.getStackTraceString(e));
        }
    }

    private void updateSwitcher() {
        boolean doneSyncing = SyncState.READY.toString()
                .equals(prefs.getString(Constants.PREF_WEIGHT_SYNC_STATE, ""));
        // if we are done syncing, show child 1
        int index = (doneSyncing) ? 1 : 0;
        switcher.setDisplayedChild(index);
    }

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

}