com.sbhstimetable.sbhs_timetable_android.SettingsFragment.java Source code

Introduction

Here is the source code for com.sbhstimetable.sbhs_timetable_android.SettingsFragment.java

Source

/*
 * SBHS-Timetable-Android: Countdown and timetable all at once (Android app).
 * Copyright (C) 2014 Simon Shields, James Ye
 *
 * This file is part of SBHS-Timetable-Android.
 *
 * 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.sbhstimetable.sbhs_timetable_android;

import android.appwidget.AppWidgetManager;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Build;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceFragment;
import android.preference.PreferenceScreen;
import android.support.v4.content.LocalBroadcastManager;

import com.sbhstimetable.sbhs_timetable_android.backend.ApiAccessor;
import com.sbhstimetable.sbhs_timetable_android.backend.internal.Compat;
import com.sbhstimetable.sbhs_timetable_android.backend.internal.PrefUtil;
import com.sbhstimetable.sbhs_timetable_android.backend.internal.ThemeHelper;
import com.sbhstimetable.sbhs_timetable_android.backend.service.TodayAppWidget;

public class SettingsFragment extends PreferenceFragment {
    private PreferenceScreen mPreferenceScreen;
    private ListPreference mListPreference;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        addPreferencesFromResource(R.xml.pref_notification);
        addPreferencesFromResource(R.xml.pref_widget);
        addPreferencesFromResource(R.xml.pref_appearance);
        String[] prefs = new String[] { PrefUtil.WIDGET_TRANSPARENCY_HS, PrefUtil.WIDGET_TRANSPARENCY_LS,
                PrefUtil.THEME, PrefUtil.COLOUR }; // settings to attach listeners to

        // don't offer lock screen widget options on platforms that don't support them
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1
                || Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) {
            mPreferenceScreen = getPreferenceScreen();
            mListPreference = (ListPreference) findPreference("widget_transparency_lockscreen");
            mPreferenceScreen.removePreference(mListPreference);
            prefs = new String[] { PrefUtil.WIDGET_TRANSPARENCY_HS, PrefUtil.THEME, PrefUtil.COLOUR };

        }
        for (String pref : prefs) {
            Preference thePref = this.findPreference(pref);
            thePref.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
            SharedPreferences p = thePref.getSharedPreferences();
            String defaultVal = ((ListPreference) thePref).getValue();
            thePref.getOnPreferenceChangeListener().onPreferenceChange(thePref, p.getString(pref, defaultVal));
        }
    }

    /**
     * A preference value change listener that updates the preference's summary
     * to reflect its new value. -- TODO
     */
    private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object value) {
            String stringValue = value.toString();

            if (preference instanceof ListPreference) {
                // For list preferences, look up the correct display value in
                // the preference's 'entries' list.
                ListPreference listPreference = (ListPreference) preference;
                int index = listPreference.findIndexOfValue(stringValue);
                // Set the summary to reflect the new value.
                preference.setSummary(
                        (index >= 0 ? String.valueOf(listPreference.getEntries()[index]).replace("%", "%%")
                                : null));
                if (preference.getKey().contains("widget")) {
                    // update widgets
                    Intent i = new Intent(preference.getContext(), TodayAppWidget.class);
                    i.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
                    i.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS,
                            Compat.getWidgetIds(preference.getContext(), TodayAppWidget.class));
                    preference.getContext().sendBroadcast(i);
                } else if (preference.getKey().startsWith("app_")) {
                    Intent i = new Intent();
                    i.setAction(ApiAccessor.ACTION_THEME_CHANGED);
                    ThemeHelper.invalidateTheme();
                    LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(preference.getContext());
                    lbm.sendBroadcast(i);
                }
            }
            return true;
        }
    };
}