| /* |
| * 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.systemui.statusbar.notification; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.ValueAnimator; |
| import android.graphics.ColorMatrix; |
| import android.graphics.ColorMatrixColorFilter; |
| import android.widget.ImageView; |
| |
| import com.android.systemui.Interpolators; |
| import com.android.systemui.statusbar.phone.NotificationPanelView; |
| |
| import java.util.function.Consumer; |
| |
| public class NotificationDozeHelper { |
| private final ColorMatrix mGrayscaleColorMatrix = new ColorMatrix(); |
| |
| public void fadeGrayscale(final ImageView target, final boolean dark, long delay) { |
| startIntensityAnimation(new ValueAnimator.AnimatorUpdateListener() { |
| @Override |
| public void onAnimationUpdate(ValueAnimator animation) { |
| updateGrayscale(target, (float) animation.getAnimatedValue()); |
| } |
| }, dark, delay, new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| if (!dark) { |
| target.setColorFilter(null); |
| } |
| } |
| }); |
| } |
| |
| public void updateGrayscale(ImageView target, boolean dark) { |
| updateGrayscale(target, dark ? 1 : 0); |
| } |
| |
| public void updateGrayscale(ImageView target, float darkAmount) { |
| if (darkAmount > 0) { |
| updateGrayscaleMatrix(darkAmount); |
| target.setColorFilter(new ColorMatrixColorFilter(mGrayscaleColorMatrix)); |
| } else { |
| target.setColorFilter(null); |
| } |
| } |
| |
| public void startIntensityAnimation(ValueAnimator.AnimatorUpdateListener updateListener, |
| boolean dark, long delay, Animator.AnimatorListener listener) { |
| float startIntensity = dark ? 0f : 1f; |
| float endIntensity = dark ? 1f : 0f; |
| ValueAnimator animator = ValueAnimator.ofFloat(startIntensity, endIntensity); |
| animator.addUpdateListener(updateListener); |
| animator.setDuration(NotificationPanelView.DOZE_ANIMATION_DURATION); |
| animator.setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN); |
| animator.setStartDelay(delay); |
| if (listener != null) { |
| animator.addListener(listener); |
| } |
| animator.start(); |
| } |
| |
| public void setIntensityDark(Consumer<Float> listener, boolean dark, |
| boolean animate, long delay) { |
| if (animate) { |
| startIntensityAnimation(a -> listener.accept((Float) a.getAnimatedValue()), dark, delay, |
| null /* listener */); |
| } else { |
| listener.accept(dark ? 1f : 0f); |
| } |
| } |
| |
| public void updateGrayscaleMatrix(float intensity) { |
| mGrayscaleColorMatrix.setSaturation(1 - intensity); |
| } |
| |
| public ColorMatrix getGrayscaleColorMatrix() { |
| return mGrayscaleColorMatrix; |
| } |
| } |