com.myfuture.view.WelcomeFragment.java Source code

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Here is the source code for com.myfuture.view.WelcomeFragment.java

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/**
 * Copyright 2014 Facebook, Inc.
 *
 * You are hereby granted a non-exclusive, worldwide, royalty-free license to
 * use, copy, modify, and distribute this software in source code or binary
 * form for use in connection with the web services and APIs provided by
 * Facebook.
 *
 * As with any software that integrates with the Facebook platform, your use
 * of this software is subject to the Facebook Developer Principles and
 * Policies [http://developers.facebook.com/policy/]. This copyright notice
 * shall be included in all copies or substantial portions of the software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 */

package com.myfuture.view;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

import com.parse.GetCallback;
import com.parse.ParseException;
import com.parse.ParseUser;
import com.myfuture.R;
import com.myfuture.model.GeneralInfo;

public class WelcomeFragment extends Fragment {

    private WelcomeListAdapter adapter;
    private TextView wecomeDescriptionTextView;
    private GeneralInfo welcomeData;

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

        adapter = new WelcomeListAdapter(getActivity());

        // Get the information
        GeneralInfo.findInBackground(new GetCallback<GeneralInfo>() {

            @Override
            public void done(GeneralInfo result, ParseException e) {
                if (e == null) {
                    welcomeData = result;
                    if (adapter != null) {
                        JSONArray welcomeDetails = welcomeData.getDetail();
                        for (int i = 0; i < welcomeDetails.length(); i++) {
                            try {
                                JSONObject innerObject = welcomeDetails.getJSONObject(i);
                                adapter.add(innerObject);
                            } catch (JSONException e1) {
                                // Do nothing
                            }
                        }
                        if (!getActivity().isFinishing()) {
                            updateView();
                        }
                    }
                }
            }
        });
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        final View v = inflater.inflate(R.layout.track_welcome_layout, container, false);
        ((TextView) v.findViewById(R.id.greeting))
                .setText(getString(R.string.welcome_message, ParseUser.getCurrentUser().getString("firstName")));

        LinearLayout welcomeBlock = (LinearLayout) v.findViewById(R.id.welcome_color_block);
        int actionBarHeight = getActivity().getActionBar().getHeight();
        welcomeBlock.setMinimumHeight(actionBarHeight + 270);

        wecomeDescriptionTextView = (TextView) v.findViewById(R.id.welcome_description);
        ListView list = (ListView) v.findViewById(R.id.welcome_details_list);
        list.setAdapter(adapter);

        return v;
    }

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

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

    private void updateView() {
        if (wecomeDescriptionTextView != null && welcomeData != null) {
            wecomeDescriptionTextView.setText(welcomeData.getDescription());
        }
        if (adapter != null) {
            adapter.notifyDataSetChanged();
        }
    }

    private static class WelcomeListAdapter extends ArrayAdapter<JSONObject> {

        private ViewHolder holder;
        private LayoutInflater inflater;

        public WelcomeListAdapter(Context context) {
            super(context, 0);
            inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        }

        @Override
        public View getView(int position, View view, ViewGroup parent) {
            if (view == null) {
                view = inflater.inflate(R.layout.list_item_welcome, parent, false);
                holder = new ViewHolder();
                holder.welcomeTitle = (TextView) view.findViewById(R.id.welcome_title);
                holder.welcomeContent = (TextView) view.findViewById(R.id.welcome_content);
                view.setTag(holder);
            } else {
                holder = (ViewHolder) view.getTag();
            }

            try {
                JSONObject object = getItem(position);
                holder.welcomeTitle.setText(object.getString("title"));
                holder.welcomeContent.setText(object.getString("content"));
            } catch (JSONException e1) {
                // DO nothing
            }

            return view;
        }
    }

    private static class ViewHolder {
        TextView welcomeTitle;
        TextView welcomeContent;
    }

}