Android Open Source - cnBeta Article List Service

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Back to project page cnBeta.

License

The source code is released under:

Apache License

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Java Source Code

?package com.guest.cnbeta.service;
/*w  w w.  j  a  v  a2  s.  c om*/
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.List;

import android.content.Context;
import android.view.ViewGroup.LayoutParams;
import android.webkit.WebSettings;
import android.webkit.WebView;

import com.guest.cnbeta.database.ArticleDB;
import com.guest.cnbeta.loadsource.LoadSource;
import com.guest.cnbeta.loadsource.LoadSourceInterface;
import com.guest.cnbeta.module.Article;

public class ArticleListService extends BaseService {
  private LoadSourceInterface loadSource = new LoadSource();
  private ArticleDB articleDB;

  public ArticleListService(Context context) {
    super(context);
    articleDB = new ArticleDB(context);
  }

  public List<Article> getArticleListFromWeb() throws MalformedURLException,
      IOException {
    return loadSource.getArticleListFromWeb();
  }

  public List<Article> getArticleList(int page) {

    List<Article> list = null;

    try {
      list = loadSource.getMoreArticleListFromWeb(page);
    } catch (MalformedURLException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (NullPointerException e) {
      // TODO: handle exception
      e.printStackTrace();
    }

    return list;
  }

  public void syncArticleToDb(List<Article> list) {
    for (Article article : list) {
      articleDB.save(article);
    }
  }
  
  public List<Article> getArticleListFromDB() {
    return articleDB.getList();
  }

  public void offLineDownload(Context context, List<Article> articleList) {

    ArticleService cbArticleService = new ArticleService(context);

    try {
      for (Article article : articleList) {
        if (!article.isContented()) {
          Article mArticle = cbArticleService.getMoreDetail(article);
          FileOutputStream out = context.openFileOutput("cache_art_"
              + mArticle.getId() + ".html", Context.MODE_PRIVATE);
          if (mArticle.getContent() != null) {
            out.write(mArticle.getContent().getBytes());
          } else {
            out.write("<html>404</html>".getBytes());
          }
          out.flush();
          out.close();

          WebView webView = new WebView(context);
          LayoutParams layoutParams = new LayoutParams(
              LayoutParams.WRAP_CONTENT,
              LayoutParams.WRAP_CONTENT);
          webView.setLayoutParams(layoutParams);
          webView.getSettings()
              .setCacheMode(WebSettings.LOAD_NORMAL);
          webView.getSettings().setLoadsImagesAutomatically(true);
          webView.loadUrl("file://" + context.getFilesDir()
              + "/cache_art_" + article.getId() + ".html");
        }
      }

      syncArticleToDb(articleList);
      
    } catch (MalformedURLException e1) {
      // TODO Auto-generated catch block
      e1.printStackTrace();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (NullPointerException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
  }
}

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