1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.systemui.statusbar.notification; 18 19 import android.animation.Animator; 20 import android.animation.AnimatorListenerAdapter; 21 import android.animation.ValueAnimator; 22 import android.graphics.ColorMatrix; 23 import android.graphics.ColorMatrixColorFilter; 24 import android.widget.ImageView; 25 26 import com.android.systemui.Interpolators; 27 import com.android.systemui.statusbar.phone.NotificationPanelView; 28 29 import java.util.function.Consumer; 30 31 public class NotificationDozeHelper { 32 private final ColorMatrix mGrayscaleColorMatrix = new ColorMatrix(); 33 fadeGrayscale(final ImageView target, final boolean dark, long delay)34 public void fadeGrayscale(final ImageView target, final boolean dark, long delay) { 35 startIntensityAnimation(new ValueAnimator.AnimatorUpdateListener() { 36 @Override 37 public void onAnimationUpdate(ValueAnimator animation) { 38 updateGrayscale(target, (float) animation.getAnimatedValue()); 39 } 40 }, dark, delay, new AnimatorListenerAdapter() { 41 @Override 42 public void onAnimationEnd(Animator animation) { 43 if (!dark) { 44 target.setColorFilter(null); 45 } 46 } 47 }); 48 } 49 updateGrayscale(ImageView target, boolean dark)50 public void updateGrayscale(ImageView target, boolean dark) { 51 updateGrayscale(target, dark ? 1 : 0); 52 } 53 updateGrayscale(ImageView target, float darkAmount)54 public void updateGrayscale(ImageView target, float darkAmount) { 55 if (darkAmount > 0) { 56 updateGrayscaleMatrix(darkAmount); 57 target.setColorFilter(new ColorMatrixColorFilter(mGrayscaleColorMatrix)); 58 } else { 59 target.setColorFilter(null); 60 } 61 } 62 startIntensityAnimation(ValueAnimator.AnimatorUpdateListener updateListener, boolean dark, long delay, Animator.AnimatorListener listener)63 public void startIntensityAnimation(ValueAnimator.AnimatorUpdateListener updateListener, 64 boolean dark, long delay, Animator.AnimatorListener listener) { 65 float startIntensity = dark ? 0f : 1f; 66 float endIntensity = dark ? 1f : 0f; 67 ValueAnimator animator = ValueAnimator.ofFloat(startIntensity, endIntensity); 68 animator.addUpdateListener(updateListener); 69 animator.setDuration(NotificationPanelView.DOZE_ANIMATION_DURATION); 70 animator.setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN); 71 animator.setStartDelay(delay); 72 if (listener != null) { 73 animator.addListener(listener); 74 } 75 animator.start(); 76 } 77 setIntensityDark(Consumer<Float> listener, boolean dark, boolean animate, long delay)78 public void setIntensityDark(Consumer<Float> listener, boolean dark, 79 boolean animate, long delay) { 80 if (animate) { 81 startIntensityAnimation(a -> listener.accept((Float) a.getAnimatedValue()), dark, delay, 82 null /* listener */); 83 } else { 84 listener.accept(dark ? 1f : 0f); 85 } 86 } 87 updateGrayscaleMatrix(float intensity)88 public void updateGrayscaleMatrix(float intensity) { 89 mGrayscaleColorMatrix.setSaturation(1 - intensity); 90 } 91 getGrayscaleColorMatrix()92 public ColorMatrix getGrayscaleColorMatrix() { 93 return mGrayscaleColorMatrix; 94 } 95 } 96