paulscode.android.mupen64plusae.util.PrefUtil.java Source code

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Here is the source code for paulscode.android.mupen64plusae.util.PrefUtil.java

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/**
 * Mupen64PlusAE, an N64 emulator for the Android platform
 * 
 * Copyright (C) 2013 Paul Lamb
 * 
 * This file is part of Mupen64PlusAE.
 * 
 * Mupen64PlusAE 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.
 * 
 * Mupen64PlusAE 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 Mupen64PlusAE. If
 * not, see <http://www.gnu.org/licenses/>.
 * 
 * Authors: littleguy77
 */
package paulscode.android.mupen64plusae.util;

import org.apache.commons.lang.ArrayUtils;

import android.content.SharedPreferences;
import android.content.res.Resources;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceClickListener;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;

public final class PrefUtil {
    @SuppressWarnings("deprecation")
    public static void setOnPreferenceClickListener(PreferenceActivity activity, String key,
            OnPreferenceClickListener listener) {
        Preference preference = activity.findPreference(key);
        if (preference != null)
            preference.setOnPreferenceClickListener(listener);
    }

    @SuppressWarnings("deprecation")
    public static void enablePreference(PreferenceActivity activity, String key, boolean enabled) {
        Preference preference = activity.findPreference(key);
        if (preference != null)
            preference.setEnabled(enabled);
    }

    @SuppressWarnings("deprecation")
    public static void removePreference(PreferenceActivity activity, String keyParent, String keyChild) {
        Preference parent = activity.findPreference(keyParent);
        Preference child = activity.findPreference(keyChild);
        if (parent instanceof PreferenceGroup && child != null)
            ((PreferenceGroup) parent).removePreference(child);
    }

    public static void validateListPreference(Resources res, SharedPreferences prefs, String key, int defaultResId,
            int arrayResId) {
        String value = prefs.getString(key, null);
        String defValue = res.getString(defaultResId);
        String[] validValues = res.getStringArray(arrayResId);
        if (!ArrayUtils.contains(validValues, value)) {
            prefs.edit().putString(key, defValue).commit();
        }
    }
}