Android Open Source - WindNow Station List Adapter

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From Project

Back to project page WindNow.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.windnow;
//www .  j ava 2s .  c o m
import java.util.List;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.graphics.drawable.BitmapDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

/**
 * 
 * This Class is part of WindNow.
 * 
 * It is the list adapter for the main class.
 * 
 * @author Florian Hauser Copyright (C) 2014
 * 
 *         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 3 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, see <http://www.gnu.org/licenses/>.
 */

public class StationListAdapter extends ArrayAdapter<Station> {

  private Context context;
  private int id;
  private List<Station> objects;
  private static Bitmap greySock = BitmapFactory.decodeResource(OnlyContext
      .getContext().getResources(), R.drawable.greysocksmall);
  private static Bitmap colSock = BitmapFactory.decodeResource(OnlyContext
      .getContext().getResources(), R.drawable.colsocksmall);

  public StationListAdapter(Context context, int textViewResourceId,
      List<Station> objects) {
    super(context, textViewResourceId, objects);
    this.context = context;
    id = textViewResourceId;
    this.objects = objects;
  }

  public Station getItem(int i) {
    return objects.get(i);
  }

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    View v = convertView;
    if (v == null) {
      LayoutInflater vi = (LayoutInflater) context
          .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      v = vi.inflate(id, null);
    }
    final Station o = objects.get(position);

    int heig = 0;
    if (o != null) {

      TextView header = (TextView) v.findViewById(R.id.secondLine);
      header.setText("" + (position + 1) + ": " + o.getName());
      heig += header.getLineHeight();
      
      TextView loaded = (TextView) v.findViewById(R.id.lowerLine);
      loaded.setText(o.getSecLine());
      heig += loaded.getLineHeight();

    }

    ImageView view = (ImageView) v.findViewById(R.id.sockIcon);
    if (o.isLoaded())
      view.setImageDrawable(scaleImage(view, colSock, heig + 15));
    else
      view.setImageDrawable(scaleImage(view, greySock, heig + 15));

    return v;
  }

  private BitmapDrawable scaleImage(View v, Bitmap bitmap, int size) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int bounding = dpToPx(size);
    float xScale = ((float) bounding) / width;
    float yScale = ((float) bounding) / height;
    float scale = (xScale <= yScale) ? xScale : yScale;
    Matrix matrix = new Matrix();
    matrix.postScale(scale, scale);
    Bitmap scaledBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height,
        matrix, true);
    width = scaledBitmap.getWidth(); // re-use
    height = scaledBitmap.getHeight(); // re-use
    @SuppressWarnings("deprecation")
    BitmapDrawable result = new BitmapDrawable(scaledBitmap);
    return result;
  }

  private int dpToPx(int dp) {
    float density = OnlyContext.getContext().getResources()
        .getDisplayMetrics().density;
    return Math.round((float) dp * density);
  }
}

Java Source Code List

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