Android Open Source - Android_ApplicationTemplate Details Task

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License

The source code is released under:

MIT License

Java Source Code

/*The MIT License (MIT)
/*from  w  w w.  j  ava  2 s .  c o m*/
Copyright (c) 2014 Ahmad Barqawi (github.com/Barqawiz)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission 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.iaraby.template.control;

import com.company.appname.R;
import com.iaraby.template.data.Beans;
import com.iaraby.template.data.Constants;
import com.iaraby.template.data.FavoriteManager;
import com.iaraby.template.data.MyDataAdapter;
import com.iaraby.template.data.Beans.Category;
import com.iaraby.utility.LogManager;
import com.iaraby.utility.Utility;

import android.content.Context;
import android.database.Cursor;
import android.os.AsyncTask;
import android.util.Log;

/**
 * Get details page items from the database through a thread for better performance
 *
 */
public class DetailsTask extends AsyncTask<String, Integer, Boolean>{

  private final static int success = 1;
  private final static int fail    = 0;

  private Context context;
  //params
  boolean isFav;
  private long id;
  private int  position;
  
  //result
  private HandleResult handler;
  String title;
  Cursor content;
  
  public DetailsTask(Context context, long id, int  position, boolean isFav, HandleResult handler) {
    this.context = context;
    this.id    = id;
    this.position = position;
    this.handler  = handler;
    this.isFav = isFav;
  } //constructor
  
  @Override
  protected void onProgressUpdate(Integer... values) {
    super.onProgressUpdate(values);
    
    if (values[0] == success && content != null) {
      handler.setResult(title, content);
    } else {
      handler.handleError("Error reading data from database");
    } //check id data received successfully 
    
  } //method: 

  @Override
  protected Boolean doInBackground(String... params) {
    
    if (!MyDataAdapter.getInstance().isOpen()) {
      LogManager.getIns().ee(Constants.LOG_TAG, "database closed ! make sure you call open(config)");
      publishProgress(Constants.EMPTY_INT);
      return false;
    }
      
    if (isFav) {
      try {
        content = FavoriteManager.getInstance(context).getFavCursor();
      } catch(IllegalAccessError ex) {
        Log.e(Constants.LOG_TAG, ex.toString());
      } //try to get content cursor
      title = context.getString(R.string.fav);
      
    } else {
      content = MyDataAdapter.getInstance().getContentList(id);
      
      Cursor catCur   = MyDataAdapter.getInstance().getCategoryName(id);
      if (catCur != null && catCur.moveToFirst()) {
        try {
          title = catCur.getString(catCur.getColumnIndexOrThrow(Category.COL_NAME));
        }catch(IllegalArgumentException ex) {
          publishProgress(Constants.EMPTY_INT);
          return false;
        } //try to get the title
      }
    } //check if Favorite
    publishProgress(success);
    
    return true;
  } //method: process the data

  public interface HandleResult {
    public void setResult(String title, String desc);
    public void setResult(String title, Cursor desc);
    public void handleError(String error);
  } //handler for task results
} //class: Task to read details for selected item

Java Source Code List

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