Android Customlist

Hi i am going to present android CustomList where there is a facility to change the background color on focus and pressed states and also the textview colour will be change during the same. it is simple and can be more customized accordinly :) i am just representing all the classesand resources here ==>

1) AdvancedListViewActivity.java


import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Toast;

public class AdvancedListViewActivity extends Activity implements OnItemClickListener {
    /** Called when the activity is first created. */
ListView listView;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        Context ctx = getApplicationContext();
Resources res = ctx.getResources();

String[] options = res.getStringArray(R.array.country_names);
TypedArray icons = res.obtainTypedArray(R.array.country_icons);
listView = (ListView) findViewById(R.id.listview);
listView.setAdapter(new ImageAndTextAdapter(ctx, R.layout.main_list_item,
options, icons));
listView.setOnItemClickListener(this);
    }
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),
arg2+"", Toast.LENGTH_SHORT).show();
}
}

2) ImageAndTextAdapter.java



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

public class ImageAndTextAdapter extends ArrayAdapter<String> {

private LayoutInflater mInflater;

private String[] mStrings;
private TypedArray mIcons;

private int mViewResourceId;

public ImageAndTextAdapter(Context ctx, int viewResourceId,
String[] strings, TypedArray icons) {
super(ctx, viewResourceId, strings);

mInflater = (LayoutInflater)ctx.getSystemService(
Context.LAYOUT_INFLATER_SERVICE);

mStrings = strings;
mIcons = icons;

mViewResourceId = viewResourceId;
}

@Override
public int getCount() {
return mStrings.length;
}

@Override
public String getItem(int position) {
return mStrings[position];
}

@Override
public long getItemId(int position) {
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
convertView = mInflater.inflate(mViewResourceId, null);

ImageView iv = (ImageView)convertView.findViewById(R.id.option_icon);
iv.setImageDrawable(mIcons.getDrawable(position));

TextView tv = (TextView)convertView.findViewById(R.id.option_text);
tv.setText(mStrings[position]);

return convertView;
}
}

3) main.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <ListView

        android:id="@+id/listview"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:cacheColorHint="#00000000" >

    </ListView>

</RelativeLayout>

4) main_list_item.xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:background="@drawable/list_bg" >

    <ImageView
        android:id="@+id/option_icon"
        android:layout_width="48dp"
        android:layout_height="fill_parent" />

    <TextView
        android:id="@+id/option_text"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:padding="10dp"
        android:textSize="16dp" >
    </TextView>

</LinearLayout>

5) list_bg.xml


<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@color/grey" android:state_pressed="false" android:state_selected="false"/>
    <item android:drawable="@color/blue" android:state_pressed="true"/>
    <item android:drawable="@color/blue" android:state_pressed="false" android:state_selected="true"/>

</selector>

6) colors.xml


<?xml version="1.0" encoding="utf-8"?>
<resources>

    <color name="blue">#ff2570ba</color>
    <color name="grey">#f7f7f7</color>

</resources>

7) countries.xml


<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="country_names">
        <item>Bhutan</item>
        <item>Colombia</item>
        <item>Italy</item>
        <item>Jamaica</item>
        <item>Kazakhstan</item>
        <item>Kenya</item>
    </string-array>
    <array name="country_icons">
        <item>@drawable/bhutan</item>
        <item>@drawable/colombia</item>
        <item>@drawable/italy</item>
        <item>@drawable/jamaica</item>
        <item>@drawable/kazakhstan</item>
        <item>@drawable/kenya</item>
    </array>
</resources>

The directory structure should be in a given order.