gistfile1.java

package com.vstrecher.preference;

import java.util.ArrayList;

import com.vstrecher.mobimoney.R;

import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.preference.ListPreference;
import android.preference.PreferenceManager;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CompoundButton;
import android.widget.RadioButton;
import android.widget.TextView;
import android.app.Dialog;
import android.app.AlertDialog.Builder;

public class CustomListPreference extends ListPreference {
	CustomListPreferenceAdapter customListPreferenceAdapter = null;
	Context mContext;
	private LayoutInflater mInflater;
	CharSequence[] entries;
	CharSequence[] entryValues;
	ArrayList<RadioButton> rButtonList;
	SharedPreferences prefs;
	SharedPreferences.Editor editor;

	public CustomListPreference(Context context, AttributeSet attrs) {
		super(context, attrs);
		mContext = context;
		mInflater = LayoutInflater.from(context);
		rButtonList = new ArrayList<RadioButton>();
		prefs = PreferenceManager.getDefaultSharedPreferences(mContext);
		editor = prefs.edit();
	}

	@Override
	protected void onPrepareDialogBuilder(Builder builder) {
		entries = getEntries();
		entryValues = getEntryValues();

		if (entries == null || entryValues == null
				|| entries.length != entryValues.length) {
			throw new IllegalStateException(
					"ListPreference requires an entries array and an entryValues array which are both the same length");
		}

		customListPreferenceAdapter = new CustomListPreferenceAdapter(mContext);

		builder.setAdapter(customListPreferenceAdapter,
				new DialogInterface.OnClickListener() {
					public void onClick(DialogInterface dialog, int which) {

					}
				});
	}

	private class CustomListPreferenceAdapter extends BaseAdapter {
		public CustomListPreferenceAdapter(Context context) {

		}

		public int getCount() {
			return entries.length;
		}

		public Object getItem(int position) {
			return position;
		}

		public long getItemId(int position) {
			return position;
		}

		public View getView(final int position, View convertView,
				ViewGroup parent) {
			View row = convertView;
			CustomHolder holder = null;

			if (row == null) {
				row = mInflater.inflate(R.layout.custom_list_preference_row,
						parent, false);
				holder = new CustomHolder(row, position);
				row.setTag(holder);

				// do whatever you need here, for me I wanted the last item to
				// be greyed out and unclickable
				if (position != 3) {
					row.setClickable(true);
					row.setOnClickListener(new View.OnClickListener() {
						public void onClick(View v) {
							for (RadioButton rb : rButtonList) {
								if (rb.getId() != position)
									rb.setChecked(false);
							}

							int index = position;
							int value = Integer
									.valueOf((String) entryValues[index]);
							editor.putInt("yourPref", value);

							Dialog mDialog = getDialog();
							mDialog.dismiss();
						}
					});
				}
			}

			return row;
		}

		class CustomHolder {
			private TextView text = null;
			private RadioButton rButton = null;

			CustomHolder(View row, int position) {
				text = (TextView) row
						.findViewById(R.id.custom_list_view_row_text_view);
				text.setText(entries[position]);
				rButton = (RadioButton) row
						.findViewById(R.id.custom_list_view_row_radio_button);
				rButton.setId(position);

				// again do whatever you need to, for me I wanted this item to
				// be greyed out and unclickable
				if (position == 3) {
					text.setTextColor(Color.LTGRAY);
					rButton.setClickable(false);
				}

				// also need to do something to check your preference and set
				// the right button as checked

				rButtonList.add(rButton);
				rButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
					public void onCheckedChanged(CompoundButton buttonView,
							boolean isChecked) {
						if (isChecked) {
							for (RadioButton rb : rButtonList) {
								if (rb != buttonView)
									rb.setChecked(false);
							}

							int index = buttonView.getId();
							int value = Integer
									.valueOf((String) entryValues[index]);
							editor.putInt("yourPref", value);

							Dialog mDialog = getDialog();
							mDialog.dismiss();
						}
					}
				});
			}
		}
	}
}