Sunny Goyal
b265ba7449
DeferredHandler was added when we were posting each icon separately, to prevent starvation. But since then we have moved to binding batct items during bind. Also fixing waitForIdle not waiting the second time. waitForIdle was using a global variable to maintain state, and was not waiting properly when its called the second time before binding deep shortcuts Original Change-Id: I9c1289cb3bfb74f86e53ec7ac6dd76bb39666b2d Change-Id: I9e6b3ae65fbd3aec3a46092efc5249c4525efedf
111 lines
3.1 KiB
Java
111 lines
3.1 KiB
Java
/**
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* Copyright (C) 2015 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.util;
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import android.view.View;
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import android.view.View.OnAttachStateChangeListener;
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import android.view.ViewTreeObserver.OnDrawListener;
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import com.android.launcher3.Launcher;
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import java.util.ArrayList;
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import java.util.concurrent.Executor;
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/**
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* An executor which runs all the tasks after the first onDraw is called on the target view.
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*/
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public class ViewOnDrawExecutor implements Executor, OnDrawListener, Runnable,
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OnAttachStateChangeListener {
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private final ArrayList<Runnable> mTasks = new ArrayList<>();
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private final Executor mExecutor;
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private Launcher mLauncher;
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private View mAttachedView;
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private boolean mCompleted;
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private boolean mLoadAnimationCompleted;
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private boolean mFirstDrawCompleted;
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public ViewOnDrawExecutor(Executor executor) {
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mExecutor = executor;
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}
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public void attachTo(Launcher launcher) {
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mLauncher = launcher;
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mAttachedView = launcher.getWorkspace();
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mAttachedView.addOnAttachStateChangeListener(this);
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attachObserver();
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}
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private void attachObserver() {
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if (!mCompleted) {
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mAttachedView.getViewTreeObserver().addOnDrawListener(this);
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}
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}
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@Override
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public void execute(Runnable command) {
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mTasks.add(command);
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}
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@Override
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public void onViewAttachedToWindow(View v) {
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attachObserver();
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}
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@Override
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public void onViewDetachedFromWindow(View v) { }
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@Override
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public void onDraw() {
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mFirstDrawCompleted = true;
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mAttachedView.post(this);
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}
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public void onLoadAnimationCompleted() {
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mLoadAnimationCompleted = true;
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if (mAttachedView != null) {
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mAttachedView.post(this);
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}
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}
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@Override
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public void run() {
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// Post the pending tasks after both onDraw and onLoadAnimationCompleted have been called.
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if (mLoadAnimationCompleted && mFirstDrawCompleted && !mCompleted) {
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for (final Runnable r : mTasks) {
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mExecutor.execute(r);
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}
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markCompleted();
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}
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}
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public void markCompleted() {
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mTasks.clear();
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mCompleted = true;
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if (mAttachedView != null) {
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mAttachedView.getViewTreeObserver().removeOnDrawListener(this);
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mAttachedView.removeOnAttachStateChangeListener(this);
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}
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if (mLauncher != null) {
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mLauncher.clearPendingExecutor(this);
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}
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}
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}
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