StackStateAnimator.java revision 8efa6dde2b4f2cdbf046b87b7366404c3cc46219
1572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek/* 2572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * Copyright (C) 2014 The Android Open Source Project 3572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * 4572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * Licensed under the Apache License, Version 2.0 (the "License"); 5572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * you may not use this file except in compliance with the License. 6572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * You may obtain a copy of the License at 7572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * 8572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * http://www.apache.org/licenses/LICENSE-2.0 9572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * 10572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * Unless required by applicable law or agreed to in writing, software 11572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * distributed under the License is distributed on an "AS IS" BASIS, 12572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * See the License for the specific language governing permissions and 14572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * limitations under the License 15572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek */ 16572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 17572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinekpackage com.android.systemui.statusbar.stack; 18572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 19eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinekimport android.animation.Animator; 20eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinekimport android.animation.AnimatorListenerAdapter; 21eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinekimport android.animation.ObjectAnimator; 22d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggiimport android.animation.PropertyValuesHolder; 23572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinekimport android.animation.ValueAnimator; 24572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinekimport android.view.View; 25572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinekimport android.view.animation.AnimationUtils; 26572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinekimport android.view.animation.Interpolator; 27eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 28eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinekimport com.android.systemui.R; 29572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinekimport com.android.systemui.statusbar.ExpandableView; 30572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 31572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinekimport java.util.ArrayList; 32eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinekimport java.util.HashSet; 33eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinekimport java.util.Set; 34eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinekimport java.util.Stack; 35572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 36572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek/** 37572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek * An stack state animator which handles animations to new StackScrollStates 38572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek */ 39572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinekpublic class StackStateAnimator { 40572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 415aa045cc6bca84f5c11f1a99999546ba5e5949a5Jorim Jaggi public static final int ANIMATION_DURATION_STANDARD = 360; 428efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek public static final int ANIMATION_DURATION_APPEAR_DISAPPEAR = 464; 435aa045cc6bca84f5c11f1a99999546ba5e5949a5Jorim Jaggi public static final int ANIMATION_DURATION_DIMMED_ACTIVATED = 220; 448efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek public static final int ANIMATION_DELAY_PER_ELEMENT_INTERRUPTING = 80; 458efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek public static final int ANIMATION_DELAY_PER_ELEMENT_MANUAL = 32; 468efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek private static final int DELAY_EFFECT_MAX_INDEX_DIFFERENCE = 2; 475aa045cc6bca84f5c11f1a99999546ba5e5949a5Jorim Jaggi 48eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_ANIMATOR_TRANSLATION_Y = R.id.translation_y_animator_tag; 49eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_ANIMATOR_TRANSLATION_Z = R.id.translation_z_animator_tag; 50d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi private static final int TAG_ANIMATOR_SCALE = R.id.scale_animator_tag; 51eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_ANIMATOR_ALPHA = R.id.alpha_animator_tag; 52eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_ANIMATOR_HEIGHT = R.id.height_animator_tag; 53eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_ANIMATOR_TOP_INSET = R.id.top_inset_animator_tag; 54eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_END_TRANSLATION_Y = R.id.translation_y_animator_end_value_tag; 55eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_END_TRANSLATION_Z = R.id.translation_z_animator_end_value_tag; 56d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi private static final int TAG_END_SCALE = R.id.scale_animator_end_value_tag; 57eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_END_ALPHA = R.id.alpha_animator_end_value_tag; 58eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_END_HEIGHT = R.id.height_animator_end_value_tag; 59eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private static final int TAG_END_TOP_INSET = R.id.top_inset_animator_end_value_tag; 608df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek private static final int TAG_START_TRANSLATION_Y = R.id.translation_y_animator_start_value_tag; 618df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek private static final int TAG_START_TRANSLATION_Z = R.id.translation_z_animator_start_value_tag; 628df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek private static final int TAG_START_SCALE = R.id.scale_animator_start_value_tag; 638df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek private static final int TAG_START_ALPHA = R.id.alpha_animator_start_value_tag; 648df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek private static final int TAG_START_HEIGHT = R.id.height_animator_start_value_tag; 658df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek private static final int TAG_START_TOP_INSET = R.id.top_inset_animator_start_value_tag; 66572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 67572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek private final Interpolator mFastOutSlowInInterpolator; 68572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek public NotificationStackScrollLayout mHostLayout; 69eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private ArrayList<NotificationStackScrollLayout.AnimationEvent> mNewEvents = 70eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek new ArrayList<>(); 718efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek private ArrayList<View> mNewAddChildren = new ArrayList<>(); 72eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private Set<Animator> mAnimatorSet = new HashSet<Animator>(); 73eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private Stack<AnimatorListenerAdapter> mAnimationListenerPool 74eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek = new Stack<AnimatorListenerAdapter>(); 75d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi private AnimationFilter mAnimationFilter = new AnimationFilter(); 765aa045cc6bca84f5c11f1a99999546ba5e5949a5Jorim Jaggi private long mCurrentLength; 77572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 788d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek private ValueAnimator mTopOverScrollAnimator; 798d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek private ValueAnimator mBottomOverScrollAnimator; 808d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek 81572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek public StackStateAnimator(NotificationStackScrollLayout hostLayout) { 82572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek mHostLayout = hostLayout; 83572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek mFastOutSlowInInterpolator = AnimationUtils.loadInterpolator(hostLayout.getContext(), 84eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek android.R.interpolator.fast_out_slow_in); 85572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 86572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 87572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek public boolean isRunning() { 88eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek return !mAnimatorSet.isEmpty(); 89572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 90572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 91572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek public void startAnimationForEvents( 920dd6881ea481c855976214807c17595b34a2920aJorim Jaggi ArrayList<NotificationStackScrollLayout.AnimationEvent> mAnimationEvents, 93572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek StackScrollState finalState) { 94eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 95eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek processAnimationEvents(mAnimationEvents, finalState); 96eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 97572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek int childCount = mHostLayout.getChildCount(); 98d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi mAnimationFilter.applyCombination(mNewEvents); 995aa045cc6bca84f5c11f1a99999546ba5e5949a5Jorim Jaggi mCurrentLength = NotificationStackScrollLayout.AnimationEvent.combineLength(mNewEvents); 100572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek for (int i = 0; i < childCount; i++) { 101572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek final ExpandableView child = (ExpandableView) mHostLayout.getChildAt(i); 1028efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 103572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek StackScrollState.ViewState viewState = finalState.getViewStateForView(child); 1048efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (viewState == null || child.getVisibility() == View.GONE) { 105572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek continue; 106572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 107572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 108572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek child.setClipBounds(null); 1098efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startAnimations(child, viewState, finalState); 110572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 111eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek if (!isRunning()) { 112eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // no child has preformed any animation, lets finish 113eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek onAnimationFinished(); 114eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 1158efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek mNewEvents.clear(); 1168efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek mNewAddChildren.clear(); 117572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 118572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 119eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek /** 120eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek * Start an animation to the given viewState 121eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek */ 1228efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek private void startAnimations(final ExpandableView child, StackScrollState.ViewState viewState, 1238efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek StackScrollState finalState) { 124eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek int childVisibility = child.getVisibility(); 125eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek boolean wasVisible = childVisibility == View.VISIBLE; 126eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek final float alpha = viewState.alpha; 127eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek if (!wasVisible && alpha != 0 && !viewState.gone) { 128eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setVisibility(View.VISIBLE); 129eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 1308efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 1318efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek boolean yTranslationChanging = child.getTranslationY() != viewState.yTranslation; 1328efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek boolean zTranslationChanging = child.getTranslationZ() != viewState.zTranslation; 1338efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek boolean scaleChanging = child.getScaleX() != viewState.scale; 1348efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek boolean alphaChanging = alpha != child.getAlpha(); 1358efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek boolean heightChanging = viewState.height != child.getActualHeight(); 1368efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek boolean wasAdded = mNewAddChildren.contains(child); 1378efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek boolean hasDelays = mAnimationFilter.hasDelays; 1388efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek boolean isDelayRelevant = yTranslationChanging || zTranslationChanging || scaleChanging || 1398efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek alphaChanging || heightChanging; 1408efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek long delay = 0; 1418efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (hasDelays && isDelayRelevant || wasAdded) { 1428efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek delay = calculateChildAnimationDelay(viewState, finalState); 1438efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 1448efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 145eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // start translationY animation 1468efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (yTranslationChanging) { 1478efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startYTranslationAnimation(child, viewState, delay); 148eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 1498efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 150eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // start translationZ animation 1518efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (zTranslationChanging) { 1528efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startZTranslationAnimation(child, viewState, delay); 153d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi } 1548efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 155d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi // start scale animation 1568efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (scaleChanging) { 157d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi startScaleAnimation(child, viewState); 158eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 1598efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 160eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // start alpha animation 1618efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (alphaChanging) { 1628efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startAlphaAnimation(child, viewState, delay); 163eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 1648efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 165eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // start height animation 1668efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (heightChanging) { 1678efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startHeightAnimation(child, viewState, delay); 16859b5a356b828fe60ea2874b0680a1bf7c84809a1Jorim Jaggi } 1698efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 170d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi // start dimmed animation 171d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi child.setDimmed(viewState.dimmed, mAnimationFilter.animateDimmed); 1728efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 1738efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (wasAdded) { 1748efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek child.performAddAnimation(delay); 1758efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 1768efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 1778efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 1788efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek private long calculateChildAnimationDelay(StackScrollState.ViewState viewState, 1798efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek StackScrollState finalState) { 1808efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek long minDelay = 0; 1818efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek for (NotificationStackScrollLayout.AnimationEvent event : mNewEvents) { 1828efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek long delayPerElement = ANIMATION_DELAY_PER_ELEMENT_INTERRUPTING; 1838efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek switch (event.animationType) { 1848efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek case NotificationStackScrollLayout.AnimationEvent.ANIMATION_TYPE_ADD: { 1858efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek int ownIndex = viewState.notGoneIndex; 1868efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek int changingIndex = finalState 1878efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek .getViewStateForView(event.changingView).notGoneIndex; 1888efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek int difference = Math.abs(ownIndex - changingIndex); 1898efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek difference = Math.max(0, Math.min(DELAY_EFFECT_MAX_INDEX_DIFFERENCE, 1908efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek difference - 1)); 1918efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek long delay = (DELAY_EFFECT_MAX_INDEX_DIFFERENCE - difference) * delayPerElement; 1928efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek minDelay = Math.max(delay, minDelay); 1938efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek break; 1948efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 1958efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek case NotificationStackScrollLayout.AnimationEvent.ANIMATION_TYPE_REMOVE_SWIPED_OUT: 1968efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek delayPerElement = ANIMATION_DELAY_PER_ELEMENT_MANUAL; 1978efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek case NotificationStackScrollLayout.AnimationEvent.ANIMATION_TYPE_REMOVE: { 1988efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek int ownIndex = viewState.notGoneIndex; 1998efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek boolean noNextView = event.viewAfterChangingView == null; 2008efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek View viewAfterChangingView = noNextView 2018efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek ? mHostLayout.getLastChildNotGone() 2028efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek : event.viewAfterChangingView; 2038efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 2048efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek int nextIndex = finalState 2058efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek .getViewStateForView(viewAfterChangingView).notGoneIndex; 2068efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (ownIndex >= nextIndex) { 2078efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // we only have the view afterwards 2088efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek ownIndex++; 2098efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 2108efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek int difference = Math.abs(ownIndex - nextIndex); 2118efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek difference = Math.max(0, Math.min(DELAY_EFFECT_MAX_INDEX_DIFFERENCE, 2128efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek difference - 1)); 2138efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek long delay = difference * delayPerElement; 2148efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek minDelay = Math.max(delay, minDelay); 2158efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek break; 2168efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 2178efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek default: 2188efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek break; 2198efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 2208efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 2218efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek return minDelay; 222572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 223572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 224eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private void startHeightAnimation(final ExpandableView child, 2258efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek StackScrollState.ViewState viewState, long delay) { 2268df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek Integer previousStartValue = getChildTag(child, TAG_START_HEIGHT); 227d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi Integer previousEndValue = getChildTag(child, TAG_END_HEIGHT); 2288df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek int newEndValue = viewState.height; 2298df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousEndValue != null && previousEndValue == newEndValue) { 230eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek return; 231eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 232eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek ValueAnimator previousAnimator = getChildTag(child, TAG_ANIMATOR_HEIGHT); 2338df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (!mAnimationFilter.animateHeight) { 2348df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // just a local update was performed 2358df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousAnimator != null) { 2368df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // we need to increase all animation keyframes of the previous animator by the 2378df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // relative change to the end value 2388df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek PropertyValuesHolder[] values = previousAnimator.getValues(); 2398df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek int relativeDiff = newEndValue - previousEndValue; 2408df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek int newStartValue = previousStartValue + relativeDiff; 2418df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek values[0].setIntValues(newStartValue, newEndValue); 2428df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_HEIGHT, newStartValue); 2438df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_HEIGHT, newEndValue); 2448df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek previousAnimator.setCurrentPlayTime(previousAnimator.getCurrentPlayTime()); 2458df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek return; 2468df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek } else { 2478df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // no new animation needed, let's just apply the value 2488df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setActualHeight(newEndValue, false); 2498df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek return; 250eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 251eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 252eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 2538df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek ValueAnimator animator = ValueAnimator.ofInt(child.getActualHeight(), newEndValue); 254eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 255572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek @Override 256572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek public void onAnimationUpdate(ValueAnimator animation) { 257d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi child.setActualHeight((int) animation.getAnimatedValue(), 258d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi false /* notifyListeners */); 259572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 260572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek }); 261eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.setInterpolator(mFastOutSlowInInterpolator); 2628df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek long newDuration = cancelAnimatorAndGetNewDuration(previousAnimator); 263eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.setDuration(newDuration); 2648efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (delay > 0 && (previousAnimator == null || !previousAnimator.isRunning())) { 2658efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek animator.setStartDelay(delay); 2668efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 267eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addListener(getGlobalAnimationFinishedListener()); 268eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // remove the tag when the animation is finished 269eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addListener(new AnimatorListenerAdapter() { 270eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek @Override 271eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek public void onAnimationEnd(Animator animation) { 272eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_ANIMATOR_HEIGHT, null); 2738df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_HEIGHT, null); 274eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_END_HEIGHT, null); 275eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 276eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek }); 2778efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startAnimator(animator); 278eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_ANIMATOR_HEIGHT, animator); 2798df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_HEIGHT, child.getActualHeight()); 2808df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_HEIGHT, newEndValue); 281eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 282eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 283eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private void startAlphaAnimation(final ExpandableView child, 2848efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek final StackScrollState.ViewState viewState, long delay) { 2858df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek Float previousStartValue = getChildTag(child,TAG_START_ALPHA); 286eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek Float previousEndValue = getChildTag(child,TAG_END_ALPHA); 2878df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek final float newEndValue = viewState.alpha; 2888df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousEndValue != null && previousEndValue == newEndValue) { 289eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek return; 290eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 291eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek ObjectAnimator previousAnimator = getChildTag(child, TAG_ANIMATOR_ALPHA); 2928df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (!mAnimationFilter.animateAlpha) { 2938df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // just a local update was performed 2948df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousAnimator != null) { 2958df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // we need to increase all animation keyframes of the previous animator by the 2968df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // relative change to the end value 2978df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek PropertyValuesHolder[] values = previousAnimator.getValues(); 2988df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float relativeDiff = newEndValue - previousEndValue; 2998df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float newStartValue = previousStartValue + relativeDiff; 3008df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek values[0].setFloatValues(newStartValue, newEndValue); 3018df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_ALPHA, newStartValue); 3028df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_ALPHA, newEndValue); 3038df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek previousAnimator.setCurrentPlayTime(previousAnimator.getCurrentPlayTime()); 3048df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek return; 3058df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek } else { 3068df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // no new animation needed, let's just apply the value 3078df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setAlpha(newEndValue); 3088df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (newEndValue == 0) { 3098df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setVisibility(View.INVISIBLE); 3108df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek } 311eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 312eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 313eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 314eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek ObjectAnimator animator = ObjectAnimator.ofFloat(child, View.ALPHA, 3158df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.getAlpha(), newEndValue); 316eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.setInterpolator(mFastOutSlowInInterpolator); 317eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // Handle layer type 318eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek final int currentLayerType = child.getLayerType(); 319eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setLayerType(View.LAYER_TYPE_HARDWARE, null); 320eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addListener(new AnimatorListenerAdapter() { 321eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek public boolean mWasCancelled; 322eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 323eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek @Override 324eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek public void onAnimationEnd(Animator animation) { 325eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setLayerType(currentLayerType, null); 3268df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (newEndValue == 0 && !mWasCancelled) { 327eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setVisibility(View.INVISIBLE); 328eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 329eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_ANIMATOR_ALPHA, null); 3308df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_ALPHA, null); 331eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_END_ALPHA, null); 332eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 333eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 334eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek @Override 335eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek public void onAnimationCancel(Animator animation) { 336eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek mWasCancelled = true; 337eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 338eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 339eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek @Override 340eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek public void onAnimationStart(Animator animation) { 341eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek mWasCancelled = false; 342eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 343eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek }); 3448df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek long newDuration = cancelAnimatorAndGetNewDuration(previousAnimator); 3453af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek animator.setDuration(newDuration); 3468efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (delay > 0 && (previousAnimator == null || !previousAnimator.isRunning())) { 3478efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek animator.setStartDelay(delay); 3488efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 349eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addListener(getGlobalAnimationFinishedListener()); 350eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // remove the tag when the animation is finished 351eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addListener(new AnimatorListenerAdapter() { 352eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek @Override 353eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek public void onAnimationEnd(Animator animation) { 354eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 355eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 356eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek }); 3578efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startAnimator(animator); 358eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_ANIMATOR_ALPHA, animator); 3598df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_ALPHA, child.getAlpha()); 3608df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_ALPHA, newEndValue); 361572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 362572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek 363eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private void startZTranslationAnimation(final ExpandableView child, 3648efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek final StackScrollState.ViewState viewState, long delay) { 3658df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek Float previousStartValue = getChildTag(child,TAG_START_TRANSLATION_Z); 366eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek Float previousEndValue = getChildTag(child,TAG_END_TRANSLATION_Z); 3678df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float newEndValue = viewState.zTranslation; 3688df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousEndValue != null && previousEndValue == newEndValue) { 369eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek return; 370eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 371eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek ObjectAnimator previousAnimator = getChildTag(child, TAG_ANIMATOR_TRANSLATION_Z); 3728df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (!mAnimationFilter.animateZ) { 3738df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // just a local update was performed 3748df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousAnimator != null) { 3758df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // we need to increase all animation keyframes of the previous animator by the 3768df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // relative change to the end value 3778df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek PropertyValuesHolder[] values = previousAnimator.getValues(); 3788df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float relativeDiff = newEndValue - previousEndValue; 3798df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float newStartValue = previousStartValue + relativeDiff; 3808df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek values[0].setFloatValues(newStartValue, newEndValue); 3818df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_TRANSLATION_Z, newStartValue); 3828df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_TRANSLATION_Z, newEndValue); 3838df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek previousAnimator.setCurrentPlayTime(previousAnimator.getCurrentPlayTime()); 3848df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek return; 3858df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek } else { 3868df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // no new animation needed, let's just apply the value 3878df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTranslationZ(newEndValue); 388eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 389eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 390eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 391eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek ObjectAnimator animator = ObjectAnimator.ofFloat(child, View.TRANSLATION_Z, 3928df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.getTranslationZ(), newEndValue); 393eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.setInterpolator(mFastOutSlowInInterpolator); 3948df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek long newDuration = cancelAnimatorAndGetNewDuration(previousAnimator); 3953af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek animator.setDuration(newDuration); 3968efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (delay > 0 && (previousAnimator == null || !previousAnimator.isRunning())) { 3978efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek animator.setStartDelay(delay); 3988efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 399eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addListener(getGlobalAnimationFinishedListener()); 400eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // remove the tag when the animation is finished 401eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addListener(new AnimatorListenerAdapter() { 402eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek @Override 403eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek public void onAnimationEnd(Animator animation) { 404eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_ANIMATOR_TRANSLATION_Z, null); 4058df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_TRANSLATION_Z, null); 406eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_END_TRANSLATION_Z, null); 407eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 408eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek }); 4098efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startAnimator(animator); 410eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_ANIMATOR_TRANSLATION_Z, animator); 4118df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_TRANSLATION_Z, child.getTranslationZ()); 4128df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_TRANSLATION_Z, newEndValue); 413eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 414eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 415eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private void startYTranslationAnimation(final ExpandableView child, 4168efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek StackScrollState.ViewState viewState, long delay) { 4178df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek Float previousStartValue = getChildTag(child,TAG_START_TRANSLATION_Y); 418eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek Float previousEndValue = getChildTag(child,TAG_END_TRANSLATION_Y); 4198df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float newEndValue = viewState.yTranslation; 4208df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousEndValue != null && previousEndValue == newEndValue) { 421eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek return; 422eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 423eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek ObjectAnimator previousAnimator = getChildTag(child, TAG_ANIMATOR_TRANSLATION_Y); 4248df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (!mAnimationFilter.animateY) { 4258df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // just a local update was performed 4268df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousAnimator != null) { 4278df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // we need to increase all animation keyframes of the previous animator by the 4288df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // relative change to the end value 4298df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek PropertyValuesHolder[] values = previousAnimator.getValues(); 4308df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float relativeDiff = newEndValue - previousEndValue; 4318df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float newStartValue = previousStartValue + relativeDiff; 4328df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek values[0].setFloatValues(newStartValue, newEndValue); 4338df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_TRANSLATION_Y, newStartValue); 4348df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_TRANSLATION_Y, newEndValue); 4358df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek previousAnimator.setCurrentPlayTime(previousAnimator.getCurrentPlayTime()); 4368df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek return; 4378df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek } else { 4388df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // no new animation needed, let's just apply the value 4398df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTranslationY(newEndValue); 4408df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek return; 441eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 442eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 443eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 444eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek ObjectAnimator animator = ObjectAnimator.ofFloat(child, View.TRANSLATION_Y, 4458df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.getTranslationY(), newEndValue); 446eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.setInterpolator(mFastOutSlowInInterpolator); 4478df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek long newDuration = cancelAnimatorAndGetNewDuration(previousAnimator); 4483af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek animator.setDuration(newDuration); 4498efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (delay > 0 && (previousAnimator == null || !previousAnimator.isRunning())) { 4508efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek animator.setStartDelay(delay); 4518efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 452eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addListener(getGlobalAnimationFinishedListener()); 453eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek // remove the tag when the animation is finished 454eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek animator.addListener(new AnimatorListenerAdapter() { 455eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek @Override 456eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek public void onAnimationEnd(Animator animation) { 457eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_ANIMATOR_TRANSLATION_Y, null); 4588df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_TRANSLATION_Y, null); 459eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_END_TRANSLATION_Y, null); 460eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 461eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek }); 4628efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startAnimator(animator); 463eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek child.setTag(TAG_ANIMATOR_TRANSLATION_Y, animator); 4648df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_TRANSLATION_Y, child.getTranslationY()); 4658df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_TRANSLATION_Y, newEndValue); 466eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 467eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 468d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi private void startScaleAnimation(final ExpandableView child, 469d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi StackScrollState.ViewState viewState) { 4708df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek Float previousStartValue = getChildTag(child, TAG_START_SCALE); 471d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi Float previousEndValue = getChildTag(child, TAG_END_SCALE); 4728df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float newEndValue = viewState.scale; 4738df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousEndValue != null && previousEndValue == newEndValue) { 474d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi return; 475d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi } 476d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi ObjectAnimator previousAnimator = getChildTag(child, TAG_ANIMATOR_SCALE); 4778df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (!mAnimationFilter.animateScale) { 4788df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // just a local update was performed 4798df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek if (previousAnimator != null) { 4808df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // we need to increase all animation keyframes of the previous animator by the 4818df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // relative change to the end value 4828df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek PropertyValuesHolder[] values = previousAnimator.getValues(); 4838df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float relativeDiff = newEndValue - previousEndValue; 4848df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek float newStartValue = previousStartValue + relativeDiff; 4858df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek values[0].setFloatValues(newStartValue, newEndValue); 4868df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek values[1].setFloatValues(newStartValue, newEndValue); 4878df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_SCALE, newStartValue); 4888df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_SCALE, newEndValue); 4898df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek previousAnimator.setCurrentPlayTime(previousAnimator.getCurrentPlayTime()); 4908df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek return; 4918df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek } else { 4928df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // no new animation needed, let's just apply the value 4938df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setScaleX(newEndValue); 4948df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setScaleY(newEndValue); 495d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi } 496d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi } 497d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi 498d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi PropertyValuesHolder holderX = 4998df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek PropertyValuesHolder.ofFloat(View.SCALE_X, child.getScaleX(), newEndValue); 500d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi PropertyValuesHolder holderY = 5018df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek PropertyValuesHolder.ofFloat(View.SCALE_Y, child.getScaleY(), newEndValue); 502d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi ObjectAnimator animator = ObjectAnimator.ofPropertyValuesHolder(child, holderX, holderY); 503d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi animator.setInterpolator(mFastOutSlowInInterpolator); 5048df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek long newDuration = cancelAnimatorAndGetNewDuration(previousAnimator); 505d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi animator.setDuration(newDuration); 506d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi animator.addListener(getGlobalAnimationFinishedListener()); 507d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi // remove the tag when the animation is finished 508d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi animator.addListener(new AnimatorListenerAdapter() { 509d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi @Override 510d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi public void onAnimationEnd(Animator animation) { 511d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi child.setTag(TAG_ANIMATOR_SCALE, null); 5128df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_SCALE, null); 513d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi child.setTag(TAG_END_SCALE, null); 514d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi } 515d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi }); 5168efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek startAnimator(animator); 517d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi child.setTag(TAG_ANIMATOR_SCALE, animator); 5188df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_START_SCALE, child.getScaleX()); 5198df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek child.setTag(TAG_END_SCALE, newEndValue); 520d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi } 521d552d9d8e964c102e6832610be46cf2c041e8829Jorim Jaggi 5228efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek private void startAnimator(ValueAnimator animator) { 5238efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek mAnimatorSet.add(animator); 5243af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek animator.start(); 5253af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek } 5263af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek 5273af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek /** 5283af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek * @return an adapter which ensures that onAnimationFinished is called once no animation is 5293af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek * running anymore 5303af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek */ 5313af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek private AnimatorListenerAdapter getGlobalAnimationFinishedListener() { 5323af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek if (!mAnimationListenerPool.empty()) { 5333af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek return mAnimationListenerPool.pop(); 5343af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek } 5353af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek 5363af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek // We need to create a new one, no reusable ones found 5373af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek return new AnimatorListenerAdapter() { 5383af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek private boolean mWasCancelled; 5393af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek 5403af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek @Override 5413af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek public void onAnimationEnd(Animator animation) { 5423af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek mAnimatorSet.remove(animation); 5433af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek if (mAnimatorSet.isEmpty() && !mWasCancelled) { 5443af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek onAnimationFinished(); 5453af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek } 5463af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek mAnimationListenerPool.push(this); 5473af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek } 5483af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek 5493af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek @Override 5503af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek public void onAnimationCancel(Animator animation) { 5513af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek mWasCancelled = true; 5523af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek } 5533af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek 5543af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek @Override 5553af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek public void onAnimationStart(Animator animation) { 5563af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek mWasCancelled = false; 5573af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek } 5583af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek }; 5593af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek } 5603af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek 561eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private <T> T getChildTag(View child, int tag) { 562eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek return (T) child.getTag(tag); 563eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 564eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 565eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek /** 566eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek * Cancel the previous animator and get the duration of the new animation. 56739610545f0c2714a3526bc935effe57b421542d1Selim Cinek * 568eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek * @param previousAnimator the animator which was running before 569eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek * @return the new duration 570eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek */ 5718df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek private long cancelAnimatorAndGetNewDuration(ValueAnimator previousAnimator) { 5725aa045cc6bca84f5c11f1a99999546ba5e5949a5Jorim Jaggi long newDuration = mCurrentLength; 573eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek if (previousAnimator != null) { 5748df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // We take either the desired length of the new animation or the remaining time of 5758df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek // the previous animator, whichever is longer. 5768df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek newDuration = Math.max(previousAnimator.getDuration() 5778df56452cb696ebdee82df6fb255892eabf3febcSelim Cinek - previousAnimator.getCurrentPlayTime(), newDuration); 5783af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek previousAnimator.cancel(); 579eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 5803af00cf10660c7fdc0582dc12361c13673d0c9bbSelim Cinek return newDuration; 581eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 582eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 583eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private void onAnimationFinished() { 584eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek mHostLayout.onChildAnimationFinished(); 585eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek } 586eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek 587eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek /** 588eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek * Process the animationEvents for a new animation 589eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek * 590eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek * @param animationEvents the animation events for the animation to perform 59139610545f0c2714a3526bc935effe57b421542d1Selim Cinek * @param finalState the final state to animate to 59239610545f0c2714a3526bc935effe57b421542d1Selim Cinek */ 593eb973565f3efc6417ca35363e4d6c642947775d8Selim Cinek private void processAnimationEvents( 5940dd6881ea481c855976214807c17595b34a2920aJorim Jaggi ArrayList<NotificationStackScrollLayout.AnimationEvent> animationEvents, 595572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek StackScrollState finalState) { 5968d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek for (NotificationStackScrollLayout.AnimationEvent event : animationEvents) { 5978efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek final ExpandableView changingView = (ExpandableView) event.changingView; 5988efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (event.animationType == 5998efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek NotificationStackScrollLayout.AnimationEvent.ANIMATION_TYPE_ADD) { 6008efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 6018efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // This item is added, initialize it's properties. 6028efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek StackScrollState.ViewState viewState = finalState 6038efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek .getViewStateForView(changingView); 6048efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (viewState == null) { 6058efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // The position for this child was never generated, let's continue. 6068efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek continue; 6078efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 6088efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (changingView.getVisibility() == View.GONE) { 6098efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // The view was set to gone but the state never removed 6108efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek finalState.removeViewStateForView(changingView); 6118efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek continue; 61239610545f0c2714a3526bc935effe57b421542d1Selim Cinek } 6138efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek changingView.setAlpha(viewState.alpha); 6148efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek changingView.setTranslationY(viewState.yTranslation); 6158efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek changingView.setTranslationZ(viewState.zTranslation); 6168efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek changingView.setActualHeight(viewState.height, false); 6178efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek mNewAddChildren.add(changingView); 6188efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 6198efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } else if (event.animationType == 6208efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek NotificationStackScrollLayout.AnimationEvent.ANIMATION_TYPE_REMOVE) { 6218efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (changingView.getVisibility() == View.GONE) { 6228efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek continue; 6238efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 6248efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 6258efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // Find the amount to translate up. This is needed in order to understand the 6268efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // direction of the remove animation (either downwards or upwards) 6278efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek StackScrollState.ViewState viewState = finalState 6288efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek .getViewStateForView(event.viewAfterChangingView); 6298efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek int actualHeight = changingView.getActualHeight(); 6308efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // upwards by default 6318efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek float translationDirection = -1.0f; 6328efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek if (viewState != null) { 6338efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // there was a view after this one, Approximate the distance the next child 6348efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // travelled 6358efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek translationDirection = ((viewState.yTranslation 6368efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek - (changingView.getTranslationY() + actualHeight / 2.0f)) * 2 / 6378efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek actualHeight); 6388efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek translationDirection = Math.max(Math.min(translationDirection, 1.0f),-1.0f); 6398efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek 6408efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 6418efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek changingView.performRemoveAnimation(translationDirection, new Runnable() { 6428efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek @Override 6438efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek public void run() { 6448efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek // remove the temporary overlay 6458efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek mHostLayout.getOverlay().remove(changingView); 6468efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek } 6478efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek }); 648572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 6498efa6dde2b4f2cdbf046b87b7366404c3cc46219Selim Cinek mNewEvents.add(event); 650572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 651572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek } 6528d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek 6538d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek public void animateOverScrollToAmount(float targetAmount, final boolean onTop) { 6548d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek final float startOverScrollAmount = mHostLayout.getCurrentOverScrollAmount(onTop); 6558d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek cancelOverScrollAnimators(onTop); 6568d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek ValueAnimator overScrollAnimator = ValueAnimator.ofFloat(startOverScrollAmount, 6578d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek targetAmount); 6588d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek overScrollAnimator.setDuration(ANIMATION_DURATION_STANDARD); 6598d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek overScrollAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 6608d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek @Override 6618d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek public void onAnimationUpdate(ValueAnimator animation) { 6628d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek float currentOverScroll = (float) animation.getAnimatedValue(); 6638d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek mHostLayout.setOverScrollAmount(currentOverScroll, onTop, false /* animate */, 6648d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek false /* cancelAnimators */); 6658d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek } 6668d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek }); 6678d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek overScrollAnimator.setInterpolator(mFastOutSlowInInterpolator); 6688d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek overScrollAnimator.start(); 6698d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek if (onTop) { 6708d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek mTopOverScrollAnimator = overScrollAnimator; 6718d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek } else { 6728d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek mBottomOverScrollAnimator = overScrollAnimator; 6738d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek } 6748d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek } 6758d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek 6768d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek public void cancelOverScrollAnimators(boolean onTop) { 6778d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek ValueAnimator currentAnimator = onTop ? mTopOverScrollAnimator : mBottomOverScrollAnimator; 6788d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek if (currentAnimator != null) { 6798d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek currentAnimator.cancel(); 6808d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek } 6818d9ff9c2c66bc1d3b92eb6992d58599ff80ed6dcSelim Cinek } 682572bbd42a473980c2d59af80d378f6270ba6860aSelim Cinek} 683