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hardware_samsung/AdvancedDisplay/src/org/lineageos/settings/device/mDNIeNegative.java

58 lines
2.1 KiB

/*
* Copyright (C) 2012 The CyanogenMod Project
* 2017 The LineageOS Project
*
* 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 org.lineageos.settings.device;
import android.content.Context;
import android.content.SharedPreferences;
import android.support.v7.preference.ListPreference;
import android.support.v7.preference.Preference;
import android.support.v7.preference.Preference.OnPreferenceChangeListener;
import android.support.v7.preference.PreferenceManager;
import android.util.AttributeSet;
import org.lineageos.internal.util.FileUtils;
public class mDNIeNegative extends ListPreference implements OnPreferenceChangeListener {
private static String FILE = null;
public mDNIeNegative(Context context, AttributeSet attrs) {
super(context, attrs);
this.setOnPreferenceChangeListener(this);
FILE = context.getResources().getString(R.string.mdnie_negative_sysfs_file);
}
/**
* Restore mdnie user mode setting from SharedPreferences. (Write to kernel.)
* @param context The context to read the SharedPreferences from
*/
public static void restore(Context context) {
FILE = context.getResources().getString(R.string.mdnie_negative_sysfs_file);
if (!FileUtils.isFileWritable(FILE)) {
return;
}
SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
FileUtils.writeLine(FILE, sharedPrefs.getString(Constants.KEY_MDNIE_NEGATIVE, "0"));
}
public boolean onPreferenceChange(Preference preference, Object newValue) {
FileUtils.writeLine(FILE, (String) newValue);
return true;
}
}