PipeListPreference.java

/*
 Swisscom Safe Connect
 Copyright (C) 2014 Swisscom

 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/>.
*/
package com.swisscom.safeconnect.view;

import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
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.Button;
import android.widget.RadioButton;
import android.widget.TextView;

import com.swisscom.safeconnect.R;
import com.swisscom.safeconnect.utils.Config;
import com.swisscom.safeconnect.utils.Fonts;

/**
 * Created by cianci on 9/29/14.
 */
public class PipeListPreference extends ListPreference {
    private Context mContext;
    private LayoutInflater mInflater;
    private CharSequence[] entries;
    private CharSequence[] entryValues;
    private SharedPreferences prefs;

    public PipeListPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        mContext = context;
        mInflater = LayoutInflater.from(mContext);
        prefs = PreferenceManager.getDefaultSharedPreferences(mContext);
    }

    public PipeListPreference(Context context) {
        this(context, null);
    }

    public void onBindView(View view) {
        super.onBindView(view);

        setFonts(view);
    }

    private void setFonts(View view) {
        TextView titleView = (TextView) view.findViewById(android.R.id.title);
        titleView.setTypeface(Fonts.FONT_NORMAL);

        int summaryId = getContext().getResources().getIdentifier(
                "summary", "id", "android");

        TextView descrView = (TextView) view.findViewById(summaryId);
        descrView.setTypeface(Fonts.FONT_NORMAL);
    }

    @Override
    protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
        builder.setPositiveButton(null, null);

        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 customListPreferenceAdapter = new CustomListPreferenceAdapter();
        builder.setAdapter(customListPreferenceAdapter, null);

        View titleView = mInflater.inflate(R.layout.custom_title_textview, null);
        PipeTextView tvTitle = (PipeTextView) titleView.findViewById(R.id.custom_title);
        tvTitle.setText(getTitle());
        builder.setCustomTitle(titleView);
    }

    @Override
    protected void showDialog(Bundle state) {
        super.showDialog(state);

        Button negativeButton = (Button)getDialog().findViewById(android.R.id.button2);
        negativeButton.setTypeface(Fonts.FONT_NORMAL);
        negativeButton.setTextColor(getContext().getResources().getColor(R.color.accentColor));
    }

    private class CustomListPreferenceAdapter extends BaseAdapter {

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

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

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

        @Override
        public View getView(final int position, View convertView, ViewGroup parent) {
            View row = convertView;

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

                row.setClickable(true);
                row.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        SharedPreferences.Editor editor = prefs.edit();
                        editor.putString(Config.KEY_TRAFFIC_VIEW, String.valueOf(entryValues[position]));
                        editor.commit();

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

            final ViewHolder h = (ViewHolder) row.getTag();

            int selected = Integer.parseInt(prefs.getString(Config.KEY_TRAFFIC_VIEW, "2"));
            h.rButton.setChecked((position == selected));

            return row;
        }

        class ViewHolder {
            TextView textView;
            RadioButton rButton;

            ViewHolder(View row, final int position) {
                textView = (TextView)row.findViewById(R.id.custom_list_view_row_text_view);
                textView.setText(entries[position]);
                textView.setTypeface(Fonts.FONT_NORMAL);

                rButton = (RadioButton)row.findViewById(R.id.custom_list_view_row_radio_button);
                rButton.setId(position);
                rButton.setClickable(false);    //user clicks the row
            }
        }
    }
}