Android Open Source - YTUYemekhaneAndroid View Pager Dinner

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License

The source code is released under:

GNU General Public License

Java Source Code

/*Copyright (C) 2014  Tower Labs
/* w ww .j a  v  a2  s .  c  o m*/
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.*/
package com.towerlabs.yildizyemek;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.Locale;
import java.util.concurrent.ExecutionException;

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

import android.content.res.Resources.NotFoundException;
import android.os.Bundle;
import android.os.Environment;
import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.viewpagerindicator.CirclePageIndicator;

public class ViewPagerDinner extends Fragment {

  private String rawText;

  private View view;
  private CirclePageIndicator indicator;
  private ViewPager viewPager;
  private PageAdapter adapter;
  private HttpTask httpTask;
  private String[] urls;
  private File fileDir, file;

  public static ViewPagerDinner newInstance() {

    ViewPagerDinner viewPager = new ViewPagerDinner();

    return viewPager;

  }

  @Override
  public void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    // TODO Auto-generated method stub

    view = inflater.inflate(R.layout.activity_viewpager_dinner, container,
        false);

    try {
      initComponents(view);
    } catch (InterruptedException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (ExecutionException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (JSONException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (ParseException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (LastDayException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }

    return view;
  }

  private void initComponents(View view) throws IOException,
      InterruptedException, ExecutionException, JSONException,
      ParseException, LastDayException {

    viewPager = (ViewPager) view.findViewById(R.id.viewpager);

    httpTask = new HttpTask();
    urls = new String[1];
    urls[0] = "API Link is here";

    if (fileIsExist()) {

      rawText = readFile();

      adapter = new PageAdapter(getChildFragmentManager(), rawText);
      viewPager.setAdapter(adapter);
      // viewPager.setCurrentItem(3);
    }

    // ----------------------------------
    indicator = (CirclePageIndicator) view.findViewById(R.id.titless);
    // ----------------------------------
    indicator.setViewPager(viewPager);

  }

  public boolean fileIsExist() throws IOException, InterruptedException,
      ExecutionException, NotFoundException, JSONException,
      ParseException {

    MainActivity.fileName = MainActivity.dateFormatFile.format(new Date());

    fileDir = new File(Environment.getExternalStorageDirectory()
        .getAbsolutePath() + MainActivity.folderName);

    file = new File(fileDir, MainActivity.fileName);

    if (!fileDir.exists() && !fileDir.isDirectory()) {
      fileDir.mkdirs();
    }

    if (!file.exists()) {

      Log.d("girdimi", "girdi");

      httpTask.execute(urls[0]);

      rawText = httpTask.get();

      if (httpTask.isError()) {

        if (!correctDate(rawText).equalsIgnoreCase(
            MainActivity.fileName)) {

          MainActivity.errorDialog(getResources().getString(
              R.string.new_list_error_msg));

          return false;
        }

        FileOutputStream fo;
        DataOutputStream dos;

        fo = new FileOutputStream(file);
        dos = new DataOutputStream(fo);
        dos.writeUTF(rawText);
        fo.close();
        dos.close();
        fo = null;
        dos = null;
        return true;

      } else {

        MainActivity.errorDialog(getResources().getString(
            R.string.connection_error_msg));

        return false;
      }

    }
    return true;
  }

  public String readFile() throws IOException {

    FileInputStream fi;
    DataInputStream di;
    String result = null;

    fi = new FileInputStream(file);
    di = new DataInputStream(fi);

    result = di.readUTF();

    fi.close();
    di.close();

    fi = null;
    di = null;

    return result;

  }

  public String getRawText() {
    return rawText;
  }

  public void setRawText(String rawText) {
    this.rawText = rawText;
  }

  public static String correctDate(String rawText) throws JSONException,
      ParseException {

    JSONArray jsonArray;
    Iterator<?> it = null;
    Date tempDate = null;

    jsonArray = new JSONArray(rawText);
    it = jsonArray.getJSONObject(0).keys();

    while (it.hasNext()) {
      // Log.d("iterator", (String) it.next());
      String tempKey = (String) it.next();

      tempDate = new SimpleDateFormat("dd.MM.yyyy", Locale.getDefault())
          .parse(tempKey);

    }

    return MainActivity.dateFormatFile.format(tempDate);

  }

}

Java Source Code List

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