Android Open Source - android-weather-demo-application City Adapter

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License

The source code is released under:

GNU General Public License

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Java Source Code

package org.openweathermap.adapter;
//  ww  w .ja va2  s .  c  om
import org.openweathermap.sql.model.CityModel;
import org.openweathermap.utils.StringHelper;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

import com.ink.weather.R;

/**
 * An adapter to display a list of City DTO using the view_city_list_item layout resource
 * @author samkirton
 */
public class CityAdapter extends ArrayAdapter<CityModel> {
  private final Context mContext;
  private final CityModel[] mValues;

  public CityAdapter(Context context, CityModel[] values) {
    super(context, R.layout.view_city_list_item, values);
    this.mContext = context;
    this.mValues = values;
  }

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder viewHolder;
    
    if (convertView == null) {
      LayoutInflater inflater = LayoutInflater.from(mContext);
      convertView = (View)inflater.inflate(R.layout.view_city_list_item, parent, false);
      
      viewHolder = new ViewHolder();
      viewHolder.uiTitleTextView = (TextView)convertView.findViewById(R.id.view_city_list_title);
      viewHolder.uiLocationTextView = (TextView)convertView.findViewById(R.id.view_city_list_location);
      convertView.setTag(viewHolder);
    } else {
      viewHolder = (ViewHolder)convertView.getTag();
    }
      
    // get the city name and location coords from the CityDTO
      CityModel cityModel = mValues[position];
      String displayValue = cityModel.getName() + " (" + cityModel.getCountry() + ")";
      String locationCoords = StringHelper.buildLocationString(
        cityModel.getLatitude(),
        cityModel.getLongitude()
      );
      
      viewHolder.uiTitleTextView.setText(displayValue);
      viewHolder.uiLocationTextView.setText(locationCoords);
      
      return convertView;
  }
  
  /**
   * A static class that is used to hold a reference of the row view 
   * in memory so that multiple views do not need to be inflated 
   * for the same common row layout
   */
  private static class ViewHolder {
    TextView uiTitleTextView;
        TextView uiLocationTextView;
  }
}

Java Source Code List