Android Open Source - grtransit Preferences

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright 2011 Giles Malet.//from w w w  . j  a  v a  2  s .co m
 *
 * This file is part of GRTransit.
 * 
 * GRTransit 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.
 * 
 * GRTransit 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 GRTransit.  If not, see <http://www.gnu.org/licenses/>.
 */

package net.kw.shrdlu.grtgtfs;

import android.content.Context;
import android.content.SharedPreferences;
import android.text.TextUtils;
import android.widget.Toast;

import com.google.android.gms.analytics.HitBuilders;

import java.util.ArrayList;
import java.util.UUID;

public class Preferences {

  private final Context mContext;
  private static String mPrefsFile;
  private static SharedPreferences mPrefs;

  private static String AMPMTIMES_KEY, AUTOUPDATE_KEY, FAVSTOPS_KEY, SHOWALLBUSSES_KEY, UUID_KEY;

  public Preferences(Context context) {
    mContext = context;
    mPrefsFile = mContext.getApplicationInfo().packageName;
    mPrefs = mContext.getSharedPreferences(mPrefsFile, Context.MODE_PRIVATE);

    AMPMTIMES_KEY = mContext.getString(R.string.pref_ampmtimes_key);
    AUTOUPDATE_KEY = mContext.getString(R.string.pref_db_autoupdate_key);
    FAVSTOPS_KEY = mContext.getString(R.string.pref_favstops_key);
    SHOWALLBUSSES_KEY = mContext.getString(R.string.pref_showallbusses_key);
    UUID_KEY = mContext.getString(R.string.pref_uuid_key);
  }

  // If we don't already have a uuid, generate and save one.
  public String getUUID() {
    String uuid = mPrefs.getString(UUID_KEY, "");
    if (uuid.equals("")) {
      uuid = UUID.randomUUID().toString();
      mPrefs.edit().putString(UUID_KEY, uuid).apply();
    }
    return uuid;
  }

  /* Force values to match the defaults the first time round, so the preferences screen reflects that. This is only necessary
   * where the default is `true', since on-screen the default is `false'. */
  public boolean autoDbUpdate() {
    if (!mPrefs.contains(AUTOUPDATE_KEY)) {
      mPrefs.edit().putBoolean(AUTOUPDATE_KEY, true).apply();
    }
    return mPrefs.getBoolean(AUTOUPDATE_KEY, true);
  }

  public boolean showAllBusses() {
    return mPrefs.getBoolean(SHOWALLBUSSES_KEY, false);
  }

  public boolean showAMPMTimes() {
    return mPrefs.getBoolean(AMPMTIMES_KEY, false);
  }

  public void AddBusstopFavourite(String busstop, String stopname) {
    String favs = mPrefs.getString(FAVSTOPS_KEY, "");

    final TextUtils.StringSplitter splitter = new TextUtils.SimpleStringSplitter(';');
    splitter.setString(favs);
    boolean already = false;
    for (final String s : splitter) {
      if (s.equals(busstop)) {
        already = true;
        break;
      }
    }

    if (already) {
      Toast.makeText(mContext, "Stop " + busstop + " is already a favourite!", Toast.LENGTH_LONG).show();
        } else {
      favs += busstop + ";";
      mPrefs.edit().putString(FAVSTOPS_KEY, favs).putString(FAVSTOPS_KEY + "-" + busstop, stopname).apply();
      Toast.makeText(mContext, "Stop " + busstop + " was added to your favourites.", Toast.LENGTH_LONG).show();
        }
        GRTApplication.tracker.send(new HitBuilders.EventBuilder()
                .setCategory("Preferences")
                .setAction("Add stop")
                .setLabel(busstop)
                .build());
  }

  public void RemoveBusstopFavourite(String busstop) {
    final String favs = mPrefs.getString(FAVSTOPS_KEY, "");
    String newfavs = "";

    final TextUtils.StringSplitter splitter = new TextUtils.SimpleStringSplitter(';');
    splitter.setString(favs);

    for (final String s : splitter) {
      if (!s.equals(busstop)) {
        newfavs += s + ";";
      }
    }
    mPrefs.edit().putString(FAVSTOPS_KEY, newfavs).remove(FAVSTOPS_KEY + "-" + busstop).apply();
    Toast.makeText(mContext, "Stop " + busstop + " was removed from your favourites.", Toast.LENGTH_LONG).show();

        GRTApplication.tracker.send(new HitBuilders.EventBuilder()
                .setCategory("Preferences")
                .setAction("Remove stop")
                .setLabel(busstop)
                .build());
  }

  public ArrayList<String[]> GetBusstopFavourites() {
    final String favs = mPrefs.getString(FAVSTOPS_KEY, "");

    // Load the array for the list
    final ArrayList<String[]> details = new ArrayList<>();

    // favs is a semi-colon separated string of stops, with a trailing semi-colon.
    // Then each stop has a description stored as KEY-stop.
    if (!favs.equals("")) {
      final TextUtils.StringSplitter splitter = new TextUtils.SimpleStringSplitter(';');
      splitter.setString(favs);
      for (final String s : splitter) {
        final String[] strs = { s, mPrefs.getString(FAVSTOPS_KEY + "-" + s, "") };
        details.add(strs);
      }
    }
    return details;
  }
}

Java Source Code List

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