Android Open Source - android-mydropboxelibrary Ebook Array Adapter

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
Copyright (C) 2014 Sergio Carrasco Herranz
//from   ww  w.j a  v  a  2  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.sch.mydropboxelibrary.adapters;

import java.text.SimpleDateFormat;
import java.util.List;

import com.sch.mydropboxelibrary.R;
import com.sch.mydropboxelibrary.model.EBook;

import android.annotation.TargetApi;
import android.app.Dialog;
import android.content.Context;
import android.os.Build;
import android.os.Handler;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

/**
 * Adapter for list Dropbox files with extesion epub (ebooks)
 * 
 * @author Sergio Carrasco Herranz (scarrascoh at gmail dot com)
 * @version 1.2
 */
public class EbookArrayAdapter extends ArrayAdapter<EBook> {
  // HashMap<DbxFileInfo, Integer> mIdMap = new HashMap<DbxFileInfo, Integer>();
  private List<EBook> ebooksList;
  private Context context;

  /**
   * 
   * @param context the context (e.g: this)
   * @param itemLayout the layout used to visualize the items
   * @param ebookslist a list with the items to show
   */
  public EbookArrayAdapter(Context context, List<EBook> ebookslist) {
    super(context, R.layout.item_list, ebookslist);
    this.ebooksList = ebookslist;
    this.context = context;
    // Create HashMap to refer items
    /*
     * for (int i = 0; i < ebookslist.size(); ++i) {
     * this.mIdMap.put(ebookslist.get(i), i); }
     */
  }

  @Override
  public View getView(final int position, View convertView, ViewGroup parent) {
    View view = convertView;
    EbookViewHolder holder = null;
    if (view == null) {
      view = LayoutInflater.from(context).inflate(R.layout.item_list,
          null, false);
      holder = new EbookViewHolder();
      holder.bookIcon = (ImageView) view.findViewById(R.id.itl_book_icon);
      holder.bookIcon.setOnClickListener(new View.OnClickListener() {
        private int clicks = 0;
        @Override
        public void onClick(View v) {
          // displayToast("Clicked: " + ((EBook)
          // parent.getAdapter().getItem(position)).getTitle());
          
                  Handler handler = new Handler();
                  Runnable r = new Runnable() {                   
                      @Override
                      public void run() {
                          clicks = 0;
                      }
                  };
                  if (clicks == 0) {
                    //displayToast("single click!");
                      handler.postDelayed(r, 1000);
                  } else if (clicks == 1) {
                    clicks = 0;
                    showEBookCover((EBook) EbookArrayAdapter.this.getItem(position));
                  }
                  clicks++;
        }
      });
      
      holder.titleLabel = (TextView) view
          .findViewById(R.id.itl_title_label);
      holder.creationDateLabel = (TextView) view
          .findViewById(R.id.itl_creation_date_label);
      holder.filenameLabel = (TextView) view
          .findViewById(R.id.itl_filename_label);
      view.setTag(holder);
    } else {
      holder = (EbookViewHolder) view.getTag();
    }
    // Set item content
    EBook ebook = ebooksList.get(position);
    holder.bookIcon.setImageDrawable(ebook.getCoverImage());
    holder.titleLabel.setText(ebook.getTitle());
    holder.creationDateLabel.setText(SimpleDateFormat.getDateInstance()
        .format(ebook.getCreationDate()));
    holder.filenameLabel.setText(ebook.getFilename());
    
    return view;
  }

  /*
   * @Override 
   * public long getItemId(int position) { 
   *   DbxFileInfo item =getItem(position); 
   *   return mIdMap.get(item); 
   * }
   * 
   * @Override 
   * public boolean hasStableIds() { 
   *   return true; 
   * }
   */
  
  
  
  /**
   * Show the cover of the specified ebook
   * @param pos
   */
  @SuppressWarnings("deprecation")
  @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
  private void showEBookCover(EBook ebook){
    Context context = this.getContext();
    //
    // Get screen size
    /*Display display = getWindowManager().getDefaultDisplay();
    Point size = new Point();
    display.getSize(size);
    int screenWidth = size.x;
    int screenHeight = size.y;

    // Get target image size
    Bitmap bitmap = BitmapFactory.decodeFile(TARGET);
    int bitmapHeight = bitmap.getHeight();
    int bitmapWidth = bitmap.getWidth();

    // Scale the image down to fit perfectly into the screen
    // The value (250 in this case) must be adjusted for phone/tables displays
    while(bitmapHeight > (screenHeight - 250) || bitmapWidth > (screenWidth - 250)) {
        bitmapHeight = bitmapHeight / 2;
        bitmapWidth = bitmapWidth / 2;
    }

    // Create resized bitmap image
    BitmapDrawable resizedBitmap = new BitmapDrawable(context.getResources(), 
        Bitmap.createScaledBitmap(bitmap, bitmapWidth, bitmapHeight, false));*/

    // Create dialog
    Dialog dialog = new Dialog(context);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.xml.ebook_cover);

    ImageView image = (ImageView) dialog.findViewById(R.id.imageview);
    if(Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN){
      image.setBackgroundDrawable(ebook.getCoverImage());
    }else{
      image.setBackground(ebook.getCoverImage());
    }
    // Without this line there is a very small border around the image (1px)
    dialog.getWindow().setBackgroundDrawable(null);

    dialog.show();
  }
  
  /* ************************ SUBCLASSES ******************* */

  /**
   * View holder that represent a item in this list. Required to optimize the
   * view
   */
  static class EbookViewHolder {
    ImageView bookIcon;
    TextView titleLabel;
    TextView creationDateLabel;
    TextView filenameLabel;
  }
}

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