tasks/src/com/timsu/astrid/utilities/Preferences.java

package com.timsu.astrid.utilities;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.res.Resources;
import android.net.Uri;
import android.preference.PreferenceManager;

import com.timsu.astrid.R;

public class Preferences {

    // pref keys
    private static final String P_CURRENT_VERSION = "cv";
    private static final String P_SHOW_REPEAT_HELP = "repeathelp";

    // default values
    private static final boolean DEFAULT_PERSISTENCE_MODE = true;

    /** Set preference defaults, if unset. called at startup */
    public static void setPreferenceDefaults(Context context) {
        SharedPreferences prefs = getPrefs(context);
        Resources r = context.getResources();
        Editor editor = prefs.edit();

        if(!prefs.contains(r.getString(R.string.p_notif_annoy))) {
            editor.putBoolean(r.getString(R.string.p_notif_annoy),
                    DEFAULT_PERSISTENCE_MODE);
        }
        if(!prefs.contains(r.getString(R.string.p_fontSize))) {
            editor.putString(r.getString(R.string.p_fontSize), "20");
        }
        if(!prefs.contains(r.getString(R.string.p_deadlineTime))) {
            editor.putString(r.getString(R.string.p_deadlineTime), "7");
        }

        editor.commit();
    }

    /** CurrentVersion: the currently installed version of Astrid */
    public static int getCurrentVersion(Context context) {
        return getPrefs(context).getInt(P_CURRENT_VERSION, 0);
    }

    /** CurrentVersion: the currently installed version of Astrid */
    public static void setCurrentVersion(Context context, int version) {
        Editor editor = getPrefs(context).edit();
        editor.putInt(P_CURRENT_VERSION, version);
        editor.commit();
    }

    /** ShowRepeatHelp: whether help dialog should be shown about repeats */
    public static boolean shouldShowRepeatHelp(Context context) {
        return getPrefs(context).getBoolean(P_SHOW_REPEAT_HELP, true);
    }

    public static void setShowRepeatHelp(Context context, boolean setting) {
        Editor editor = getPrefs(context).edit();
        editor.putBoolean(P_SHOW_REPEAT_HELP, setting);
        editor.commit();
    }

    /** returns hour at which quiet hours start, or null if not set */
    public static Integer getQuietHourStart(Context context) {
        return getIntegerValue(context, R.string.p_notif_quietStart);
    }

    /** returns hour at which quiet hours start, or null if not set */
    public static Integer getQuietHourEnd(Context context) {
        return getIntegerValue(context, R.string.p_notif_quietEnd);
    }

    /** Get notification ringtone, or null if not set */
    public static Uri getNotificationRingtone(Context context) {
    	Resources r = context.getResources();
        String value = getPrefs(context).getString(r.getString(
                R.string.key_notification_ringtone), "");

        try {
			return Uri.parse(value);
		} catch (RuntimeException e) {
			return null;
		}
    }

    /** Get perstence mode setting */
    public static boolean isPersistenceMode(Context context) {
        Resources r = context.getResources();
        return getPrefs(context).getBoolean(r.getString(
                R.string.p_notif_annoy), DEFAULT_PERSISTENCE_MODE);
    }

    /** returns the font size user wants on the front page */
    public static Integer getTaskListFontSize(Context context) {
        return getIntegerValue(context, R.string.p_fontSize);
    }

    /** Return # of days from now to set deadlines by default */
    public static Integer getDefaultDeadlineDays(Context context) {
        return getIntegerValue(context, R.string.p_deadlineTime);
    }

    // --- helper methods

    private static SharedPreferences getPrefs(Context context) {
        return PreferenceManager.getDefaultSharedPreferences(context);
    }

    private static Integer getIntegerValue(Context context, int keyResource) {
        Resources r = context.getResources();
        String value = getPrefs(context).getString(r.getString(keyResource), "");

        try {
            return Integer.parseInt(value);
        } catch (Exception e) {
            return null;
        }
    }
}