mirror of
https://github.com/HackPlan/AsyncDisplayKit.git
synced 2026-04-03 08:55:30 +08:00
469 lines
13 KiB
HTML
469 lines
13 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8">
|
|
|
|
<title>ASCollectionDelegate Protocol Reference</title>
|
|
|
|
<link rel="stylesheet" href="../css/style.css">
|
|
<meta name="viewport" content="initial-scale=1, maximum-scale=1.4">
|
|
<meta name="generator" content="appledoc 2.2.1 (build 1334)">
|
|
</head>
|
|
<body class="appledoc">
|
|
<header>
|
|
<div class="container" class="hide-in-xcode">
|
|
|
|
<h1 id="library-title">
|
|
<a href="../index.html">AsyncDisplayKit </a>
|
|
</h1>
|
|
|
|
<p id="developer-home">
|
|
<a href="../index.html">Facebook</a>
|
|
</p>
|
|
|
|
</div>
|
|
</header>
|
|
|
|
<aside>
|
|
<div class="container">
|
|
<nav>
|
|
<ul id="header-buttons" role="toolbar">
|
|
<li><a href="../index.html">Index</a></li>
|
|
<li><a href="../hierarchy.html">Hierarchy</a></li>
|
|
|
|
<li id="on-this-page" role="navigation">
|
|
<label>
|
|
On This Page
|
|
|
|
<div class="chevron">
|
|
<div class="chevy chevron-left"></div>
|
|
<div class="chevy chevron-right"></div>
|
|
</div>
|
|
|
|
<select id="jump-to">
|
|
<option value="top">Jump To…</option>
|
|
|
|
<option value="overview">Overview</option>
|
|
|
|
|
|
|
|
|
|
<option value="tasks">Tasks</option>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<optgroup label="Instance Methods">
|
|
|
|
<option value="//api/name/collectionView:didEndDisplayingNode:forItemAtIndexPath:">- collectionView:didEndDisplayingNode:forItemAtIndexPath:</option>
|
|
|
|
<option value="//api/name/collectionView:didEndDisplayingNodeForItemAtIndexPath:">- collectionView:didEndDisplayingNodeForItemAtIndexPath:</option>
|
|
|
|
<option value="//api/name/collectionView:willBeginBatchFetchWithContext:">- collectionView:willBeginBatchFetchWithContext:</option>
|
|
|
|
<option value="//api/name/collectionView:willDisplayNodeForItemAtIndexPath:">- collectionView:willDisplayNodeForItemAtIndexPath:</option>
|
|
|
|
<option value="//api/name/shouldBatchFetchForCollectionView:">- shouldBatchFetchForCollectionView:</option>
|
|
|
|
</optgroup>
|
|
|
|
|
|
</select>
|
|
</label>
|
|
</li>
|
|
</ul>
|
|
</nav>
|
|
</div>
|
|
</aside>
|
|
|
|
<article>
|
|
<div id="overview_contents" class="container">
|
|
<div id="content">
|
|
<main role="main">
|
|
<h1 class="title">ASCollectionDelegate Protocol Reference</h1>
|
|
|
|
|
|
<div class="section section-specification"><table cellspacing="0"><tbody>
|
|
<tr>
|
|
<th>Conforms to</th>
|
|
<td><a href="../Protocols/ASCommonCollectionViewDelegate.html">ASCommonCollectionViewDelegate</a><br />NSObject</td>
|
|
</tr><tr>
|
|
<th>Declared in</th>
|
|
<td>ASCollectionView.h</td>
|
|
</tr>
|
|
</tbody></table></div>
|
|
|
|
|
|
|
|
|
|
<div class="section section-overview">
|
|
<a title="Overview" name="overview"></a>
|
|
<h2 class="subtitle subtitle-overview">Overview</h2>
|
|
<p>This is a node-based UICollectionViewDelegate.</p>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<div class="section section-tasks">
|
|
<a title="Tasks" name="tasks"></a>
|
|
|
|
|
|
|
|
|
|
|
|
<div class="task-list">
|
|
<div class="section-method">
|
|
<a name="//api/name/collectionView:willDisplayNodeForItemAtIndexPath:" title="collectionView:willDisplayNodeForItemAtIndexPath:"></a>
|
|
<h3 class="method-title"><code><a href="#//api/name/collectionView:willDisplayNodeForItemAtIndexPath:">– collectionView:willDisplayNodeForItemAtIndexPath:</a></code>
|
|
</h3>
|
|
|
|
<div class="method-info">
|
|
<div class="pointy-thing"></div>
|
|
|
|
<div class="method-info-container">
|
|
|
|
|
|
<div class="method-subsection brief-description">
|
|
<p>Informs the delegate that the collection view will add the node
|
|
at the given index path to the view hierarchy.</p>
|
|
</div>
|
|
|
|
|
|
|
|
<div class="method-subsection method-declaration"><code>- (void)collectionView:(ASCollectionView *)<em>collectionView</em> willDisplayNodeForItemAtIndexPath:(NSIndexPath *)<em>indexPath</em></code></div>
|
|
|
|
|
|
|
|
<div class="method-subsection arguments-section parameters">
|
|
<h4 class="method-subtitle parameter-title">Parameters</h4>
|
|
<table class="argument-def parameter-def">
|
|
|
|
<tr>
|
|
<th scope="row" class="argument-name"><code>collectionView</code></th>
|
|
<td><p>The sender.</p></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<th scope="row" class="argument-name"><code>indexPath</code></th>
|
|
<td><p>The index path of the item that will be displayed.</p></td>
|
|
</tr>
|
|
|
|
</table>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection discussion-section">
|
|
<h4 class="method-subtitle">Discussion</h4>
|
|
<div class="warning"><p><strong>Warning:</strong> AsyncDisplayKit processes collection view edits asynchronously. The index path
|
|
passed into this method may not correspond to the same item in your data source
|
|
if your data source has been updated since the last edit was processed.</p></div>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection declared-in-section">
|
|
<h4 class="method-subtitle">Declared In</h4>
|
|
<p><code class="declared-in-ref">ASCollectionView.h</code></p>
|
|
</div>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div><div class="section-method">
|
|
<a name="//api/name/collectionView:didEndDisplayingNode:forItemAtIndexPath:" title="collectionView:didEndDisplayingNode:forItemAtIndexPath:"></a>
|
|
<h3 class="method-title"><code><a href="#//api/name/collectionView:didEndDisplayingNode:forItemAtIndexPath:">– collectionView:didEndDisplayingNode:forItemAtIndexPath:</a></code>
|
|
</h3>
|
|
|
|
<div class="method-info">
|
|
<div class="pointy-thing"></div>
|
|
|
|
<div class="method-info-container">
|
|
|
|
|
|
<div class="method-subsection brief-description">
|
|
<p>Informs the delegate that the collection view did remove the provided node from the view hierarchy.
|
|
This may be caused by the node scrolling out of view, or by deleting the item
|
|
or its containing section with @c deleteItemsAtIndexPaths: or @c deleteSections: .</p>
|
|
</div>
|
|
|
|
|
|
|
|
<div class="method-subsection method-declaration"><code>- (void)collectionView:(ASCollectionView *)<em>collectionView</em> didEndDisplayingNode:(ASCellNode *)<em>node</em> forItemAtIndexPath:(NSIndexPath *)<em>indexPath</em></code></div>
|
|
|
|
|
|
|
|
<div class="method-subsection arguments-section parameters">
|
|
<h4 class="method-subtitle parameter-title">Parameters</h4>
|
|
<table class="argument-def parameter-def">
|
|
|
|
<tr>
|
|
<th scope="row" class="argument-name"><code>collectionView</code></th>
|
|
<td><p>The sender.</p></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<th scope="row" class="argument-name"><code>node</code></th>
|
|
<td><p>The node which was removed from the view hierarchy.</p></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<th scope="row" class="argument-name"><code>indexPath</code></th>
|
|
<td><p>The index path at which the node was located before it was removed.</p></td>
|
|
</tr>
|
|
|
|
</table>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection discussion-section">
|
|
<h4 class="method-subtitle">Discussion</h4>
|
|
<div class="warning"><p><strong>Warning:</strong> AsyncDisplayKit processes collection view edits asynchronously. The index path
|
|
passed into this method may not correspond to the same item in your data source
|
|
if your data source has been updated since the last edit was processed.</p></div>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection declared-in-section">
|
|
<h4 class="method-subtitle">Declared In</h4>
|
|
<p><code class="declared-in-ref">ASCollectionView.h</code></p>
|
|
</div>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div><div class="section-method">
|
|
<a name="//api/name/collectionView:willBeginBatchFetchWithContext:" title="collectionView:willBeginBatchFetchWithContext:"></a>
|
|
<h3 class="method-title"><code><a href="#//api/name/collectionView:willBeginBatchFetchWithContext:">– collectionView:willBeginBatchFetchWithContext:</a></code>
|
|
</h3>
|
|
|
|
<div class="method-info">
|
|
<div class="pointy-thing"></div>
|
|
|
|
<div class="method-info-container">
|
|
|
|
|
|
<div class="method-subsection brief-description">
|
|
<p>Receive a message that the collectionView is near the end of its data set and more data should be fetched if
|
|
necessary.</p>
|
|
</div>
|
|
|
|
|
|
|
|
<div class="method-subsection method-declaration"><code>- (void)collectionView:(ASCollectionView *)<em>collectionView</em> willBeginBatchFetchWithContext:(ASBatchContext *)<em>context</em></code></div>
|
|
|
|
|
|
|
|
<div class="method-subsection arguments-section parameters">
|
|
<h4 class="method-subtitle parameter-title">Parameters</h4>
|
|
<table class="argument-def parameter-def">
|
|
|
|
<tr>
|
|
<th scope="row" class="argument-name"><code>collectionView</code></th>
|
|
<td><p>The sender.</p></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<th scope="row" class="argument-name"><code>context</code></th>
|
|
<td><p>A context object that must be notified when the batch fetch is completed.</p></td>
|
|
</tr>
|
|
|
|
</table>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection discussion-section">
|
|
<h4 class="method-subtitle">Discussion</h4>
|
|
<p>You must eventually call -completeBatchFetching: with an argument of YES in order to receive future
|
|
notifications to do batch fetches. This method is called on a background queue.</p>
|
|
|
|
<p>UICollectionView currently only supports batch events for tail loads. If you require a head load, consider
|
|
implementing a UIRefreshControl.</p>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection declared-in-section">
|
|
<h4 class="method-subtitle">Declared In</h4>
|
|
<p><code class="declared-in-ref">ASCollectionView.h</code></p>
|
|
</div>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div><div class="section-method">
|
|
<a name="//api/name/shouldBatchFetchForCollectionView:" title="shouldBatchFetchForCollectionView:"></a>
|
|
<h3 class="method-title"><code><a href="#//api/name/shouldBatchFetchForCollectionView:">– shouldBatchFetchForCollectionView:</a></code>
|
|
</h3>
|
|
|
|
<div class="method-info">
|
|
<div class="pointy-thing"></div>
|
|
|
|
<div class="method-info-container">
|
|
|
|
|
|
<div class="method-subsection brief-description">
|
|
<p>Tell the collectionView if batch fetching should begin.</p>
|
|
</div>
|
|
|
|
|
|
|
|
<div class="method-subsection method-declaration"><code>- (BOOL)shouldBatchFetchForCollectionView:(ASCollectionView *)<em>collectionView</em></code></div>
|
|
|
|
|
|
|
|
<div class="method-subsection arguments-section parameters">
|
|
<h4 class="method-subtitle parameter-title">Parameters</h4>
|
|
<table class="argument-def parameter-def">
|
|
|
|
<tr>
|
|
<th scope="row" class="argument-name"><code>collectionView</code></th>
|
|
<td><p>The sender.</p></td>
|
|
</tr>
|
|
|
|
</table>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection discussion-section">
|
|
<h4 class="method-subtitle">Discussion</h4>
|
|
<p>Use this method to conditionally fetch batches. Example use cases are: limiting the total number of
|
|
objects that can be fetched or no network connection.</p>
|
|
|
|
<p>If not implemented, the collectionView assumes that it should notify its asyncDelegate when batch fetching
|
|
should occur.</p>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection declared-in-section">
|
|
<h4 class="method-subtitle">Declared In</h4>
|
|
<p><code class="declared-in-ref">ASCollectionView.h</code></p>
|
|
</div>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div><div class="section-method">
|
|
<a name="//api/name/collectionView:didEndDisplayingNodeForItemAtIndexPath:" title="collectionView:didEndDisplayingNodeForItemAtIndexPath:"></a>
|
|
<h3 class="method-title"><code><a href="#//api/name/collectionView:didEndDisplayingNodeForItemAtIndexPath:">– collectionView:didEndDisplayingNodeForItemAtIndexPath:</a></code>
|
|
</h3>
|
|
|
|
<div class="method-info">
|
|
<div class="pointy-thing"></div>
|
|
|
|
<div class="method-info-container">
|
|
|
|
|
|
<div class="method-subsection brief-description">
|
|
<p>Informs the delegate that the collection view did remove the node which was previously
|
|
at the given index path from the view hierarchy.</p>
|
|
</div>
|
|
|
|
|
|
|
|
<div class="method-subsection method-declaration"><code>- (void)collectionView:(ASCollectionView *)<em>collectionView</em> didEndDisplayingNodeForItemAtIndexPath:(NSIndexPath *)<em>indexPath</em></code></div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection discussion-section">
|
|
<h4 class="method-subtitle">Discussion</h4>
|
|
<div class="warning"><p><strong>Warning:</strong> AsyncDisplayKit processes collection view edits asynchronously. The index path
|
|
passed into this method may not correspond to the same item in your data source
|
|
if your data source has been updated since the last edit was processed.</p>
|
|
|
|
<p>This method is deprecated. Use @c collectionView:didEndDisplayingNode:forItemAtIndexPath: instead.</p></div>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="method-subsection declared-in-section">
|
|
<h4 class="method-subtitle">Declared In</h4>
|
|
<p><code class="declared-in-ref">ASCollectionView.h</code></p>
|
|
</div>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</main>
|
|
|
|
<footer>
|
|
<div class="footer-copyright">
|
|
|
|
<p class="copyright">Copyright © 2016 Facebook. All rights reserved. Updated: 2016-07-11</p>
|
|
|
|
|
|
<p class="generator">Generated by <a href="http://appledoc.gentlebytes.com">appledoc 2.2.1 (build 1334)</a>.</p>
|
|
|
|
</div>
|
|
</footer>
|
|
</div>
|
|
</div>
|
|
</article>
|
|
|
|
<script src="../js/script.js"></script>
|
|
</body>
|
|
</html> |