PrefUtils.java

/*
 * Copyright 2015.  Emin Yahyayev
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.ewintory.udacity.popularmovies.utils;

import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;

import com.ewintory.udacity.popularmovies.data.api.Sort;

import java.util.HashSet;
import java.util.Set;


/**
 * Utilities and constants related to app preferences.
 */
public final class PrefUtils {


    /**
     * Boolean indicating whether we performed the (one-time) welcome flow.
     */
    public static final String PREF_WELCOME_DONE = "pref_welcome_done";

    public static final String PREF_FAVORED_MOVIES = "pref_favored_movies";

    public static final String PREF_BROWSE_MOVIES_MODE = "pref_browse_movies_mode";

    public static final String PREF_INCLUDE_ADULT = "pref_include_adult";

    public static boolean isWelcomeDone(final Context context) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        return sp.getBoolean(PREF_WELCOME_DONE, false);
    }

    public static void markWelcomeDone(final Context context) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        sp.edit().putBoolean(PREF_WELCOME_DONE, true).apply();
    }

    public static void addToFavorites(final Context context, long movieId) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        Set<String> set = sp.getStringSet(PREF_FAVORED_MOVIES, null);
        if (set == null) set = new HashSet<>();
        set.add(String.valueOf(movieId));
        sp.edit().putStringSet(PREF_FAVORED_MOVIES, set).apply();
    }

    public static void removeFromFavorites(final Context context, long movieId) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        Set<String> set = sp.getStringSet(PREF_FAVORED_MOVIES, null);
        if (set == null) set = new HashSet<>();
        set.remove(String.valueOf(movieId));
        sp.edit().putStringSet(PREF_FAVORED_MOVIES, set).apply();
    }

    public static String getBrowseMoviesMode(final Context context) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        return sp.getString(PREF_BROWSE_MOVIES_MODE, Sort.POPULARITY.toString());
    }

    public static void setBrowseMoviesMode(final Context context, String mode) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        sp.edit().putString(PREF_BROWSE_MOVIES_MODE, mode).apply();
    }

    public static boolean isIncludeAdult(final Context context) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        return sp.getBoolean(PREF_INCLUDE_ADULT, false);
    }

    public static void setIncludeAdult(final Context context, boolean include) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        sp.edit().putBoolean(PREF_INCLUDE_ADULT, include).apply();
    }

    public static void registerOnSharedPreferenceChangeListener(final Context context, SharedPreferences.OnSharedPreferenceChangeListener listener) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        sp.registerOnSharedPreferenceChangeListener(listener);
    }

    public static void unregisterOnSharedPreferenceChangeListener(final Context context, SharedPreferences.OnSharedPreferenceChangeListener listener) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        sp.unregisterOnSharedPreferenceChangeListener(listener);
    }

    public static void clear(final Context context) {
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
        sp.edit().clear().apply();
    }
}