UI Android

/***
  Copyright (c) 2008-2009 CommonsWare, LLC
  
  Licensed under the Apache License, Version 2.0 (the "License"); you may
  not use this file except in compliance with the License. You may obtain
  a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/
package com.commonsware.android.eu4you;
import android.app.ListActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
public class EU4You extends ListActivity {
  static private ArrayList EU=new ArrayList();
  
  static {
    EU.add(new Country(R.string.austria, R.drawable.austria,
                       R.string.austria_url));
    EU.add(new Country(R.string.belgium, R.drawable.belgium,
                       R.string.belgium_url));
    EU.add(new Country(R.string.bulgaria, R.drawable.bulgaria,
                       R.string.bulgaria_url));
    EU.add(new Country(R.string.cyprus, R.drawable.cyprus,
                       R.string.cyprus_url));
    EU.add(new Country(R.string.czech_republic,
                       R.drawable.czech_republic,
                       R.string.czech_republic_url));
    EU.add(new Country(R.string.denmark, R.drawable.denmark,
                       R.string.denmark_url));
    EU.add(new Country(R.string.estonia, R.drawable.estonia,
                       R.string.estonia_url));
    EU.add(new Country(R.string.finland, R.drawable.finland,
                       R.string.finland_url));
    EU.add(new Country(R.string.france, R.drawable.france,
                       R.string.france_url));
    EU.add(new Country(R.string.germany, R.drawable.germany,
                       R.string.germany_url));
    EU.add(new Country(R.string.greece, R.drawable.greece,
                       R.string.greece_url));
    EU.add(new Country(R.string.hungary, R.drawable.hungary,
                       R.string.hungary_url));
    EU.add(new Country(R.string.ireland, R.drawable.ireland,
                       R.string.ireland_url));
    EU.add(new Country(R.string.italy, R.drawable.italy,
                       R.string.italy_url));
    EU.add(new Country(R.string.latvia, R.drawable.latvia,
                       R.string.latvia_url));
    EU.add(new Country(R.string.lithuania, R.drawable.lithuania,
                       R.string.lithuania_url));
    EU.add(new Country(R.string.luxembourg, R.drawable.luxembourg,
                       R.string.luxembourg_url));
    EU.add(new Country(R.string.malta, R.drawable.malta,
                       R.string.malta_url));
    EU.add(new Country(R.string.netherlands, R.drawable.netherlands,
                       R.string.netherlands_url));
    EU.add(new Country(R.string.poland, R.drawable.poland,
                       R.string.poland_url));
    EU.add(new Country(R.string.portugal, R.drawable.portugal,
                       R.string.portugal_url));
    EU.add(new Country(R.string.romania, R.drawable.romania,
                       R.string.romania_url));
    EU.add(new Country(R.string.slovakia, R.drawable.slovakia,
                       R.string.slovakia_url));
    EU.add(new Country(R.string.slovenia, R.drawable.slovenia,
                       R.string.slovenia_url));
    EU.add(new Country(R.string.spain, R.drawable.spain,
                       R.string.spain_url));
    EU.add(new Country(R.string.sweden, R.drawable.sweden,
                       R.string.sweden_url));
    EU.add(new Country(R.string.united_kingdom,
                       R.drawable.united_kingdom,
                       R.string.united_kingdom_url));
  }
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    setListAdapter(new CountryAdapter());
  }
  
  @Override
  protected void onListItemClick(ListView l, View v,
                                 int position, long id) {
    startActivity(new Intent(Intent.ACTION_VIEW,
                              Uri.parse(getString(EU.get(position).url))));
  }
  
  static class Country {
    int name;
    int flag;
    int url;
    
    Country(int name, int flag, int url) {
      this.name=name;
      this.flag=flag;
      this.url=url;
    }
  }
  
  class CountryAdapter extends ArrayAdapter {
    CountryAdapter() {
      super(EU4You.this, R.layout.row, R.id.name, EU);
    }
    
    @Override
    public View getView(int position, View convertView,
                        ViewGroup parent) {
      CountryWrapper wrapper=null;
      
      if (convertView==null) {
        convertView=getLayoutInflater().inflate(R.layout.row, null);
        wrapper=new CountryWrapper(convertView);
        convertView.setTag(wrapper);
      }
      else {
        wrapper=(CountryWrapper)convertView.getTag();
      }
      
      wrapper.populateFrom(getItem(position));
      
      return(convertView);
    }
  }
  class CountryWrapper {
    private TextView name=null;
    private ImageView flag=null;
    private View row=null;
    
    CountryWrapper(View row) {
      this.row=row;
    }
    
    TextView getName() {
      if (name==null) {
        name=(TextView)row.findViewById(R.id.name);
      }
      
      return(name);
    }
    
    ImageView getFlag() {
      if (flag==null) {
        flag=(ImageView)row.findViewById(R.id.flag);
      }
      
      return(flag);
    }
    
    void populateFrom(Country nation) {
      getName().setText(nation.name);
      getFlag().setImageResource(nation.flag);
    }
  }
}
//res\layout\main.xml

  android:id="@android:id/list"
  android:layout_width="fill_parent" 
  android:layout_height="fill_parent"
/>
//res\layout\row.xml

  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:padding="2dip"
  android:minHeight="?android:attr/listPreferredItemHeight"
>
      android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_vertical|left"
    android:paddingRight="4px"
  />
      android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_vertical|right"
    android:textSize="20px"
  />

//res\values\strings.xml


  EU4You
  Austria
  Belgium
  Bulgaria
  Cyprus
  Czech Republic
  Denmark
  Estonia
  Finland
  France
  Germany
  Greece
  Hungary
  Ireland
  Italy
  Latvia
  Lithuania
  Luxembourg
  Malta
  Netherlands
  Poland
  Portugal
  Romania
  Slovakia
  Slovenia
  Spain
  Sweden
  United Kingdom
  http://en.m.wikipedia.org/wiki/Austria
  http://en.m.wikipedia.org/wiki/Belgium
  http://en.m.wikipedia.org/wiki/Bulgaria
  http://en.m.wikipedia.org/wiki/Cyprus
  http://en.m.wikipedia.org/wiki/Czech_republic
  http://en.m.wikipedia.org/wiki/Denmark
  http://en.m.wikipedia.org/wiki/Estonia
  http://en.m.wikipedia.org/wiki/Finland
  http://en.m.wikipedia.org/wiki/France
  http://en.m.wikipedia.org/wiki/Germany
  http://en.m.wikipedia.org/wiki/Greece
  http://en.m.wikipedia.org/wiki/Hungary
  http://en.m.wikipedia.org/wiki/Ireland
  http://en.m.wikipedia.org/wiki/Italy
  http://en.m.wikipedia.org/wiki/Latvia
  http://en.m.wikipedia.org/wiki/Lithuania
  http://en.m.wikipedia.org/wiki/Luxembourg
  http://en.m.wikipedia.org/wiki/Malta
  http://en.m.wikipedia.org/wiki/Netherlands
  http://en.m.wikipedia.org/wiki/Poland
  http://en.m.wikipedia.org/wiki/Portugal
  http://en.m.wikipedia.org/wiki/Romania
  http://en.m.wikipedia.org/wiki/Slovakia
  http://en.m.wikipedia.org/wiki/Slovenia
  http://en.m.wikipedia.org/wiki/Spain
  http://en.m.wikipedia.org/wiki/Sweden
  http://en.m.wikipedia.org/wiki/United_kingdom