src/com/android/settings/notification/VibrateOnTouchPreferenceController.java

/*
 * 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.settings.notification;

import static com.android.settings.notification.SettingPref.TYPE_SYSTEM;

import android.content.Context;
import android.os.Vibrator;
import android.provider.Settings.System;

import com.android.settings.SettingsPreferenceFragment;
import com.android.settingslib.core.lifecycle.Lifecycle;

public class VibrateOnTouchPreferenceController extends SettingPrefController {

    private static final String KEY_VIBRATE_ON_TOUCH = "vibrate_on_touch";

    public VibrateOnTouchPreferenceController(Context context, SettingsPreferenceFragment parent,
            Lifecycle lifecycle) {
        super(context, parent, lifecycle);
        mPreference = new SettingPref(
            TYPE_SYSTEM, KEY_VIBRATE_ON_TOUCH, System.HAPTIC_FEEDBACK_ENABLED, 0) {
            @Override
            public boolean isApplicable(Context context) {
                return hasHaptic(context);
            }
        };

    }

    private static boolean hasHaptic(Context context) {
        final Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
        return vibrator != null && vibrator.hasVibrator();
    }

}