| /* |
| * Copyright (C) 2018 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.systemui.statusbar; |
| |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.media.AudioAttributes; |
| import android.os.AsyncTask; |
| import android.os.Handler; |
| import android.os.UserHandle; |
| import android.os.VibrationEffect; |
| import android.os.Vibrator; |
| import android.provider.Settings; |
| |
| public class VibratorHelper { |
| |
| private final Vibrator mVibrator; |
| private final Context mContext; |
| private boolean mHapticFeedbackEnabled; |
| private static final AudioAttributes STATUS_BAR_VIBRATION_ATTRIBUTES = |
| new AudioAttributes.Builder() |
| .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION) |
| .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION) |
| .build(); |
| |
| final private ContentObserver mVibrationObserver = new ContentObserver(Handler.getMain()) { |
| @Override |
| public void onChange(boolean selfChange) { |
| updateHapticFeedBackEnabled(); |
| } |
| }; |
| |
| public VibratorHelper(Context context) { |
| mContext = context; |
| mVibrator = context.getSystemService(Vibrator.class); |
| |
| mContext.getContentResolver().registerContentObserver( |
| Settings.System.getUriFor(Settings.System.HAPTIC_FEEDBACK_ENABLED), true, |
| mVibrationObserver); |
| mVibrationObserver.onChange(false /* selfChange */); |
| } |
| |
| public void vibrate(final int effectId) { |
| if (mHapticFeedbackEnabled) { |
| AsyncTask.execute(() -> |
| mVibrator.vibrate(VibrationEffect.get(effectId, false /* fallback */), |
| STATUS_BAR_VIBRATION_ATTRIBUTES)); |
| } |
| } |
| |
| private void updateHapticFeedBackEnabled() { |
| mHapticFeedbackEnabled = Settings.System.getIntForUser(mContext.getContentResolver(), |
| Settings.System.HAPTIC_FEEDBACK_ENABLED, 0, UserHandle.USER_CURRENT) != 0; |
| } |
| } |