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/*
* Copyright (C) 2017 The Android Open Source 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 com.android.launcher3.util;
import android.content.ContentResolver;
import android.content.Context;
import android.database.ContentObserver;
import android.os.Handler;
import android.provider.Settings;
/**
* Utility class to listen for secure settings changes
*/
public class SecureSettingsObserver extends ContentObserver {
/** Hidden field Settings.Secure.NOTIFICATION_BADGING */
public static final String NOTIFICATION_BADGING = "notification_badging";
private final ContentResolver mResolver;
private final String mKeySetting;
private final int mDefaultValue;
private final OnChangeListener mOnChangeListener;
public SecureSettingsObserver(ContentResolver resolver, OnChangeListener listener,
String keySetting, int defaultValue) {
super(new Handler());
mResolver = resolver;
mOnChangeListener = listener;
mKeySetting = keySetting;
mDefaultValue = defaultValue;
}
@Override
public void onChange(boolean selfChange) {
mOnChangeListener.onSettingsChanged(getValue());
}
public boolean getValue() {
return Settings.Secure.getInt(mResolver, mKeySetting, mDefaultValue) == 1;
}
public void register() {
mResolver.registerContentObserver(Settings.Secure.getUriFor(mKeySetting), false, this);
}
public ContentResolver getResolver() {
return mResolver;
}
public void dispatchOnChange() {
onChange(true);
}
public void unregister() {
mResolver.unregisterContentObserver(this);
}
public interface OnChangeListener {
void onSettingsChanged(boolean isEnabled);
}
public static SecureSettingsObserver newNotificationSettingsObserver(Context context,
OnChangeListener listener) {
return new SecureSettingsObserver(
context.getContentResolver(), listener, NOTIFICATION_BADGING, 1);
}
}
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