IGListKit/docs/Classes/IGListStackedSectionController.html
James Sherlock 5cd771b546 Added Subspec for Diffing
Summary:
So the main Podspec file now has two Subspecs, `Diffing` and for lack of better name `Default`. `Diffing` is purely the files within the common directories (used for Diffing, if in the future we support MacOS NSCollectionView then this may need changing). `Default` depends on `Diffing` but also adds all the non-common files.

To use it via CocoaPods, nothing changes. You `import IGListKit` and you will only have access to the files in the pod you use. (So if you use `IGListKit/Diffing` in your Podfile, then you will only get access to the diffing files). If you do a manual installation, or I assume via Carthage, then you will need to import the correct header file (either `IGListDiffKit.h` or `IGListKit.h` depending on what you want).

Turns out CocoaPods creates it's own umbrella header (unless you tell it otherwise) meaning our ones are unused by it.

Just to confirm `IGListKit` in your Podfile will give you everything, only if you add `/Diffing` will you "opt-out" o
Closes https://github.com/Instagram/IGListKit/pull/368

Differential Revision: D4367438

Pulled By: jessesquires

fbshipit-source-id: 272318ca551e7e8c4177ca3ca501fde23bd9705a
2016-12-27 12:44:27 -08:00

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<h1>IGListStackedSectionController</h1>
<div class="declaration">
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<pre class="highlight"><code><span class="k">@interface</span> <span class="nc">IGListStackedSectionController</span>
<span class="p">:</span> <span class="nc">IGListSectionController</span> <span class="o">&lt;</span><span class="n"><a href="../Protocols/IGListSectionType.html">IGListSectionType</a></span><span class="o">&gt;</span></code></pre>
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<p>An instace of <code>IGListStackedSectionController</code> is a clustered section controller,
composed of many child section controllers. It constructs and routes item-level
indexes to the appropriate child section controller with a local index. This lets you build section controllers made up
of individual units that can be shared and reused with other section controllers.</p>
<p>For example, you can create a <q>Comments</q> section controller that displays lists of text that is used alongside photo,
video, or slideshow section controllers. You then have four small and manageable section controllers instead of one
huge class.</p>
</section>
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<code>
<a name="/c:objc(cs)IGListStackedSectionController(im)initWithSectionControllers:"></a>
<a name="//apple_ref/objc/Method/-initWithSectionControllers:" class="dashAnchor"></a>
<a class="token" href="#/c:objc(cs)IGListStackedSectionController(im)initWithSectionControllers:">-initWithSectionControllers:</a>
</code>
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<div class="abstract">
<p>Creates a new stacked section controller.</p>
<div class="aside aside-note">
<p class="aside-title">Note</p>
<p>The order of the section controllers dictates the order in which they appear. </p>
</div>
<div class="aside aside-warning">
<p class="aside-title">Warning</p>
<p>The first section controller that is the supplementary source decides which supplementary views get displayed.</p>
</div>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Objective-C</p>
<pre class="highlight"><code><span class="k">-</span> <span class="p">(</span><span class="n">instancetype</span><span class="p">)</span><span class="nf">initWithSectionControllers</span><span class="p">:</span>
<span class="p">(</span><span class="n">NSArray</span><span class="o">&lt;</span><span class="n"><a href="../Classes/IGListSectionController.html">IGListSectionController</a></span><span class="o">&lt;</span><span class="n"><a href="../Protocols/IGListSectionType.html">IGListSectionType</a></span><span class="o">&gt;</span> <span class="o">*&gt;</span> <span class="o">*</span><span class="p">)</span><span class="nv">sectionControllers</span><span class="p">;</span></code></pre>
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<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="nf">init</span><span class="o">!</span><span class="p">(</span><span class="nv">sectionControllers</span><span class="p">:</span> <span class="kt">Any</span><span class="o">!</span><span class="p">)</span></code></pre>
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<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>sectionControllers</em>
</code>
</td>
<td>
<div>
<p>An array of section controllers that make up the stack.</p>
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