Tony Wickham
bfdeda96e6
Calling scrollToPosition on RecyclerView internally calls requestLayout() (to cacluate where to scroll and then go there). Therefore, we should avoid calling that whenever possible, especially during transitions. In particular, we can optimize scrollToTop() to not scrollToPosition() if we are already at the top. This makes some other workarounds unnecessary, namely setting All Apps to GONE during system gestures. Test: Open an app, swipe up, ensure AllAppsRecyclerView doesn't get onLayout(). If we had scrolled to an app first, we get one layout in prepareRecentsUi(), but not during the transition. Bug: 140308849 Change-Id: I62ee341bf5893c121cfc013cc6542559f79d2a42
94 lines
3.1 KiB
Java
94 lines
3.1 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.anim;
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import android.animation.Animator;
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import android.animation.AnimatorSet;
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import android.util.SparseArray;
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import android.view.animation.Interpolator;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Utility class for building animator set
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*/
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public class AnimatorSetBuilder {
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public static final int ANIM_VERTICAL_PROGRESS = 0;
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public static final int ANIM_WORKSPACE_SCALE = 1;
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public static final int ANIM_WORKSPACE_TRANSLATE = 2;
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public static final int ANIM_WORKSPACE_FADE = 3;
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public static final int ANIM_HOTSEAT_SCALE = 4;
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public static final int ANIM_HOTSEAT_TRANSLATE = 5;
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public static final int ANIM_OVERVIEW_SCALE = 6;
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public static final int ANIM_OVERVIEW_TRANSLATE_X = 7;
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public static final int ANIM_OVERVIEW_TRANSLATE_Y = 8;
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public static final int ANIM_OVERVIEW_FADE = 9;
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public static final int ANIM_ALL_APPS_FADE = 10;
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public static final int ANIM_OVERVIEW_SCRIM_FADE = 11;
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public static final int ANIM_ALL_APPS_HEADER_FADE = 12; // e.g. predictions
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public static final int FLAG_DONT_ANIMATE_OVERVIEW = 1 << 0;
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protected final ArrayList<Animator> mAnims = new ArrayList<>();
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private final SparseArray<Interpolator> mInterpolators = new SparseArray<>();
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private List<Runnable> mOnFinishRunnables = new ArrayList<>();
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private int mFlags = 0;
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public void play(Animator anim) {
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mAnims.add(anim);
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}
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public void addOnFinishRunnable(Runnable onFinishRunnable) {
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mOnFinishRunnables.add(onFinishRunnable);
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}
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public AnimatorSet build() {
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AnimatorSet anim = new AnimatorSet();
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anim.playTogether(mAnims);
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if (!mOnFinishRunnables.isEmpty()) {
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anim.addListener(new AnimationSuccessListener() {
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@Override
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public void onAnimationSuccess(Animator animation) {
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for (Runnable onFinishRunnable : mOnFinishRunnables) {
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onFinishRunnable.run();
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}
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mOnFinishRunnables.clear();
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}
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});
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}
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return anim;
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}
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public Interpolator getInterpolator(int animId, Interpolator fallback) {
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return mInterpolators.get(animId, fallback);
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}
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public void setInterpolator(int animId, Interpolator interpolator) {
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mInterpolators.put(animId, interpolator);
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}
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public void addFlag(int flag) {
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mFlags |= flag;
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}
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public boolean hasFlag(int flag) {
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return (mFlags & flag) != 0;
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}
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}
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