/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.accessibility;
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import android.content.ContentResolver;
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import android.database.ContentObserver;
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import android.net.Uri;
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import android.os.Handler;
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import android.provider.Settings;
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import java.util.ArrayList;
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import java.util.List;
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abstract class SettingsContentObserver extends ContentObserver {
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private final List<String> mKeysToObserve = new ArrayList<>(2);
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public SettingsContentObserver(Handler handler) {
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super(handler);
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mKeysToObserve.add(Settings.Secure.ACCESSIBILITY_ENABLED);
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mKeysToObserve.add(Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES);
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}
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public SettingsContentObserver(Handler handler, List<String> keysToObserve) {
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this(handler);
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mKeysToObserve.addAll(keysToObserve);
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}
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public void register(ContentResolver contentResolver) {
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for (int i = 0; i < mKeysToObserve.size(); i++) {
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contentResolver.registerContentObserver(
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Settings.Secure.getUriFor(mKeysToObserve.get(i)), false, this);
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}
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}
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public void unregister(ContentResolver contentResolver) {
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contentResolver.unregisterContentObserver(this);
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}
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@Override
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public abstract void onChange(boolean selfChange, Uri uri);
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}
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