com.ae.apps.messagecounter.fragments.MessageChartFragment.java Source code

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Here is the source code for com.ae.apps.messagecounter.fragments.MessageChartFragment.java

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/*
 * Copyright 2014 Midhun Harikumar
 * 
 * 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 com.ae.apps.messagecounter.fragments;

import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.ae.apps.common.managers.SMSManager;
import com.ae.apps.common.views.SimpleGraphView;
import com.ae.apps.common.vo.ContactMessageVo;
import com.ae.apps.messagecounter.R;
import com.ae.apps.messagecounter.data.MessageDataConsumer;
import com.ae.apps.messagecounter.data.MessageDataReader;
import com.ae.apps.messagecounter.utils.AppConstants;
import com.ae.apps.messagecounter.utils.MessageCounterUtils;
import com.ae.apps.messagecounter.vo.GraphData;

/**
 * A Fragment that displays the data using a chart
 * 
 * @author Midhun
 * 
 */
public class MessageChartFragment extends Fragment implements MessageDataConsumer {

    private static final String TAG = "MessageChartFragment";
    private MessageDataReader mReader;
    private Context mContext;
    private LinearLayout mGraphContainer;
    private TextView mTitleText;
    private TextView mOtherSendersText;
    private int mInboxMessageCount;
    private List<ContactMessageVo> mContactMessageList;
    private boolean mCachedSettingsValue;

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

        View layout = inflater.inflate(R.layout.fragment_chart, null);
        mContext = getActivity().getBaseContext();
        // Get the message count in the inbox
        mInboxMessageCount = mReader.getMessageCount(SMSManager.SMS_URI_INBOX);
        // Find the UI elements
        mTitleText = (TextView) layout.findViewById(R.id.chartTitle);
        mGraphContainer = (LinearLayout) layout.findViewById(R.id.graphContainer);
        mOtherSendersText = (TextView) layout.findViewById(R.id.otherSendersText);

        mReader.registerForData(this);
        return layout;
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            mReader = (MessageDataReader) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString() + " must implement OnCheckStatusListener");
        }
    }

    @SuppressWarnings("unchecked")
    @Override
    public void onDataReady(Object data) {
        // We can hide the progressbar at this point
        // Try to convert the data into a list
        mContactMessageList = (List<ContactMessageVo>) data;
        if (mContactMessageList != null && mInboxMessageCount > 0) {
            updateMessagesChart();
        }
    }

    @Override
    public void onPause() {
        super.onPause();
        // Save the current preference value
        mCachedSettingsValue = getIncludeNonContactMessagesPref();
    }

    @Override
    public void onResume() {
        super.onResume();
        // Update the chart if the cached value is different from the current preference value,
        // i18n values are taken from parent activity's context,
        // IllegalStateException will be thrown if this Fragment is not currently added to it
        if (mCachedSettingsValue != getIncludeNonContactMessagesPref() && mContactMessageList != null
                && isAdded()) {
            updateMessagesChart();
        }
    }

    private void updateMessagesChart() {
        try {
            // Reports of IllegalStateExceptions are received
            mTitleText.setText(getResources().getString(R.string.str_chart_title));

            // Get the preference value for including message counts from non contacts
            boolean includeNonContactMessages = getIncludeNonContactMessagesPref();

            // Do we need to show the other senders text?
            if (includeNonContactMessages) {
                mOtherSendersText.setVisibility(View.INVISIBLE);
            } else {
                mOtherSendersText.setVisibility(View.VISIBLE);
            }

            GraphData graphData = MessageCounterUtils.getMessageCountDegrees(mContactMessageList,
                    mInboxMessageCount, AppConstants.MAX_ROWS_IN_CHART, includeNonContactMessages);
            View graphView = new SimpleGraphView(mContext, graphData.getValueInDegrees(), graphData.getLabels(),
                    AppConstants.CHART_COLORFUL);

            // If we are updating, remove the previous graphView
            if (mGraphContainer.getChildCount() > 0) {
                mGraphContainer.removeAllViews();
            }

            // Create a new SimpleGraphView and add it to the graphContainer
            Animation fadeInAnimation = AnimationUtils.loadAnimation(mContext, R.animator.fade_in);
            fadeInAnimation.setStartOffset(150);
            graphView.startAnimation(fadeInAnimation);
            mGraphContainer.addView(graphView);
        } catch (Exception e) {
            Log.e(TAG, e.getMessage());
        }
    }

    /**
     * Returns the current value for hide past messages
     * 
     * @return
     */
    private boolean getIncludeNonContactMessagesPref() {
        boolean includeNonContactMessagePref = false;
        try {
            // reports of an exception being thrown here in some cases
            includeNonContactMessagePref = PreferenceManager
                    .getDefaultSharedPreferences(getActivity().getBaseContext())
                    .getBoolean(AppConstants.PREF_KEY_HIDE_NON_CONTACT_MESSAGES, false);
        } catch (Exception e) {
            // log this also later
            Log.e(TAG, e.getMessage());
        }
        return includeNonContactMessagePref;
    }

}