Android Open Source - EasyFeeds Topic Adapter

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package com.manustudios.adapters;
// w  ww .ja v a2s  . c o  m
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Bitmap.Config;
import android.graphics.PorterDuff.Mode;
import android.os.AsyncTask;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.manustudios.easyfeeds.ManagerTopics;
import com.manustudios.easyfeeds.R;
import com.squareup.picasso.Picasso;
import com.squareup.picasso.Transformation;

public class TopicAdapter extends ArrayAdapter<HashMap<String, String>>{

  private Context mContext;
  private int layout;
  public TopicAdapter(Context context, int resource, ArrayList<HashMap<String, String>> objects) {
    super(context, resource, objects);
    mContext = context;
    layout = resource;
  }

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {

    
    if(convertView==null){
      LayoutInflater vi = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      convertView = (View) vi.inflate(layout, null);
      
    }

    HashMap<String, String> topic = getItem(position);

    TextView title = (TextView) convertView.findViewById(R.id.topicTitle);
    ImageView icon = (ImageView) convertView.findViewById(R.id.imageView1);
    String imageUrl = topic.get(ManagerTopics.KEY_IMG_TOPIC);
    
    title.setText(topic.get(ManagerTopics.KEY_TITLE_TOPIC));
    Picasso.with(mContext).load(imageUrl).resize(80, 80).transform(new CropSquareTransformation()).centerCrop().into(icon);
    
    //DownloadImageTask imageLoader = new DownloadImageTask(icon);    //SET THE RIGHT IMAGE INTO THE IMAGE VIEW WITH THE RIGHT SIZE AND ROUNDED CORNER
    //imageLoader.execute(imageUrl);
    
    return convertView;
  }

  
  public class CropSquareTransformation implements Transformation {
    @Override public Bitmap transform(Bitmap source) {
      int size = Math.min(source.getWidth(), source.getHeight());
      int x = (source.getWidth() - size) / 2;
      int y = (source.getHeight() - size) / 2;
      Bitmap result = Bitmap.createBitmap(source, x, y, size, size);
      if (result != source) {
        source.recycle();
      }
      result = getRoundedCornerBitmap(result);
      return result;
    }

    @Override public String key() { return "square()"; }
  }
  
  
  private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
      ImageView bmImage;

      public DownloadImageTask(ImageView bmImage) {
          this.bmImage = bmImage;
      }

      protected Bitmap doInBackground(String... urls) {
          String urldisplay = urls[0];
          Bitmap mIcon11 = null;
          try {
              InputStream in = new java.net.URL(urldisplay).openStream();
              mIcon11 = BitmapFactory.decodeStream(in);
          } catch (Exception e) {
              Log.e("Error", e.getMessage());
              e.printStackTrace();
          }
          return mIcon11;
      }

      protected void onPostExecute(Bitmap result) {
          
        result = getRoundedCornerBitmap(result);
        bmImage.setImageBitmap(result);
      }
  }
  
  public static Bitmap getRoundedCornerBitmap(Bitmap bitmap) {
    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
        bitmap.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    final RectF rectF = new RectF(rect);
    final float roundPx = bitmap.getWidth();

    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);

    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    return output;
  }
  
  
  
}

Java Source Code List

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