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<h1>SDLTouchManager Class Reference</h1>
<h3>Section Contents</h3>
<ul>
<li><a href="#section-touchEventDelegate">touchEventDelegate</a></li>
<li><a href="#section-touchEventHandler">touchEventHandler</a></li>
<li><a href="#section-tapDistanceThreshold">tapDistanceThreshold</a></li>
<li><a href="#section-panDistanceThreshold">panDistanceThreshold</a></li>
<li><a href="#section-tapTimeThreshold">tapTimeThreshold</a></li>
<li><a href="#section-movementTimeThreshold">movementTimeThreshold</a></li>
<li><a href="#section-enableSyncedPanning">enableSyncedPanning</a></li>
<li><a href="#section-touchEnabled">touchEnabled</a></li>
<li><a href="#section--cancelPendingTouches">-cancelPendingTouches</a></li>
<li><a href="#section--init">-init</a></li>
<li><a href="#section--initWithHitTester:">-initWithHitTester:</a></li>
<li><a href="#section--initWithHitTester:videoScaleManager:">-initWithHitTester:videoScaleManager:</a></li>
<li><a href="#section--syncFrame">-syncFrame</a></li>
</ul>
<h3>Overview</h3>
<p>Touch Manager responsible for processing touch event notifications.</p>
<section class="section task-group-section">
<h3 id="section-touchEventDelegate">
touchEventDelegate
</h3>
<p>Notified of processed touches such as pinches, pans, and taps</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">,</span> <span class="n">weak</span><span class="p">,</span> <span class="n">nullable</span><span class="p">)</span> <span class="n">id</span><span class="o"><</span><span class="n"><a href="../Protocols/SDLTouchManagerDelegate.html">SDLTouchManagerDelegate</a></span><span class="o">></span> <span class="n">touchEventDelegate</span><span class="p">;</span></code></pre>
<h3 id="section-touchEventHandler">
touchEventHandler
</h3>
<p>Returns all OnTouchEvent notifications as SDLTouch and SDLTouchType objects.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">,</span> <span class="n">copy</span><span class="p">,</span> <span class="n">nullable</span><span class="p">)</span> <span class="n"><a href="../Type%20Definitions.html#/c:SDLTouchManager.h@T@SDLTouchEventHandler">SDLTouchEventHandler</a></span> <span class="n">touchEventHandler</span><span class="p">;</span></code></pre>
<h4>Swift</h4>
<pre class="highlight swift"><code><span class="k">var</span> <span class="nv">touchEventHandler</span><span class="p">:</span> <span class="kt"><a href="../Type%20Definitions.html#/c:SDLTouchManager.h@T@SDLTouchEventHandler">SDLTouchEventHandler</a></span><span class="p">?</span> <span class="p">{</span> <span class="k">get</span> <span class="k">set</span> <span class="p">}</span></code></pre>
<h3 id="section-tapDistanceThreshold">
tapDistanceThreshold
</h3>
<p>Distance between two taps on the screen, in the head unit’s coordinate system, used for registering double-tap callbacks.</p>
<p>Defaults to 50 px.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">)</span> <span class="n">CGFloat</span> <span class="n">tapDistanceThreshold</span><span class="p">;</span></code></pre>
<h4>Swift</h4>
<pre class="highlight swift"><code><span class="k">var</span> <span class="nv">tapDistanceThreshold</span><span class="p">:</span> <span class="kt">CGFloat</span> <span class="p">{</span> <span class="k">get</span> <span class="k">set</span> <span class="p">}</span></code></pre>
<h3 id="section-panDistanceThreshold">
panDistanceThreshold
</h3>
<p>Minimum distance for a pan gesture in the head unit’s coordinate system, used for registering pan callbacks.</p>
<p>Defaults to 8 px.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">)</span> <span class="n">CGFloat</span> <span class="n">panDistanceThreshold</span><span class="p">;</span></code></pre>
<h4>Swift</h4>
<pre class="highlight swift"><code><span class="k">var</span> <span class="nv">panDistanceThreshold</span><span class="p">:</span> <span class="kt">CGFloat</span> <span class="p">{</span> <span class="k">get</span> <span class="k">set</span> <span class="p">}</span></code></pre>
<h3 id="section-tapTimeThreshold">
tapTimeThreshold
</h3>
<p>Time (in seconds) between tap events to register a double-tap callback. This must be greater than 0.0.</p>
<p>Default is 0.4 seconds.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">)</span> <span class="n">CGFloat</span> <span class="n">tapTimeThreshold</span><span class="p">;</span></code></pre>
<h4>Swift</h4>
<pre class="highlight swift"><code><span class="k">var</span> <span class="nv">tapTimeThreshold</span><span class="p">:</span> <span class="kt">CGFloat</span> <span class="p">{</span> <span class="k">get</span> <span class="k">set</span> <span class="p">}</span></code></pre>
<h3 id="section-movementTimeThreshold">
movementTimeThreshold
</h3>
<p>Time (in seconds) between movement events to register panning or pinching callbacks.</p>
<p>Default is 0.05 seconds.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">)</span> <span class="n">CGFloat</span> <span class="n">movementTimeThreshold</span><span class="p">;</span></code></pre>
<h4>Swift</h4>
<pre class="highlight swift"><code><span class="k">var</span> <span class="nv">movementTimeThreshold</span><span class="p">:</span> <span class="kt">CGFloat</span> <span class="p">{</span> <span class="k">get</span> <span class="k">set</span> <span class="p">}</span></code></pre>
<h3 id="section-enableSyncedPanning">
enableSyncedPanning
</h3>
<p>If set to NO, the display link syncing will be ignored and <code><a href="../Classes/SDLTouchManager.html#/c:objc(cs)SDLTouchManager(py)movementTimeThreshold">movementTimeThreshold</a></code> will be used. Defaults to YES.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">)</span> <span class="n">BOOL</span> <span class="n">enableSyncedPanning</span><span class="p">;</span></code></pre>
<h4>Swift</h4>
<pre class="highlight swift"><code><span class="k">var</span> <span class="nv">enableSyncedPanning</span><span class="p">:</span> <span class="kt">Bool</span> <span class="p">{</span> <span class="k">get</span> <span class="k">set</span> <span class="p">}</span></code></pre>
<h3 id="section-touchEnabled">
touchEnabled
</h3>
<p>Boolean denoting whether or not the touch manager should deliver touch event callbacks.</p>
<p>Default is true.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">,</span> <span class="n">assign</span><span class="p">,</span> <span class="n">unsafe_unretained</span><span class="p">,</span> <span class="n">readwrite</span><span class="p">,</span>
<span class="n">getter</span><span class="o">=</span><span class="n">isTouchEnabled</span><span class="p">)</span> <span class="n">BOOL</span> <span class="n">touchEnabled</span><span class="p">;</span></code></pre>
<h4>Swift</h4>
<pre class="highlight swift"><code><span class="k">var</span> <span class="nv">isTouchEnabled</span><span class="p">:</span> <span class="kt">Bool</span> <span class="p">{</span> <span class="k">get</span> <span class="k">set</span> <span class="p">}</span></code></pre>
<h3 id="section--cancelPendingTouches">
-cancelPendingTouches
</h3>
<p>Cancels pending touch event timers that may be in progress.</p>
<p>Currently only impacts the timer used to register single taps.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">cancelPendingTouches</span><span class="p">;</span></code></pre>
<h4>Swift</h4>
<pre class="highlight swift"><code><span class="kd">func</span> <span class="nf">cancelPendingTouches</span><span class="p">()</span></code></pre>
<h3 id="section--init">
-init
</h3>
<p>Initializer unavailable</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">-</span> <span class="p">(</span><span class="n">nonnull</span> <span class="n">instancetype</span><span class="p">)</span><span class="n">init</span><span class="p">;</span></code></pre>
<h3 id="section--initWithHitTester:">
-initWithHitTester:
</h3>
<p>Initialize a touch manager with a hit tester if available</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">-</span> <span class="p">(</span><span class="n">nonnull</span> <span class="n">instancetype</span><span class="p">)</span><span class="nf">initWithHitTester</span><span class="p">:</span>
<span class="p">(</span><span class="n">nullable</span> <span class="n">id</span><span class="o"><</span><span class="n">SDLFocusableItemHitTester</span><span class="o">></span><span class="p">)</span><span class="nv">hitTester</span><span class="p">;</span></code></pre>
<h4>Parameters</h4>
<dl>
<dt>hitTester</dt>
<dd><p>The hit tester to be used to correlate a point with a view</p></dd>
</dl>
<div>
<h4>Return Value</h4>
<p>The initialized touch manager</p>
</div>
<h3 id="section--initWithHitTester:videoScaleManager:">
-initWithHitTester:videoScaleManager:
</h3>
<p>Initialize a touch manager with a hit tester and a video scale manager.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">-</span> <span class="p">(</span><span class="n">nonnull</span> <span class="n">instancetype</span><span class="p">)</span>
<span class="nf">initWithHitTester</span><span class="p">:(</span><span class="n">nullable</span> <span class="n">id</span><span class="o"><</span><span class="n">SDLFocusableItemHitTester</span><span class="o">></span><span class="p">)</span><span class="nv">hitTester</span>
<span class="nf">videoScaleManager</span><span class="p">:</span>
<span class="p">(</span><span class="n">nonnull</span> <span class="n"><a href="../Classes/SDLStreamingVideoScaleManager.html">SDLStreamingVideoScaleManager</a></span> <span class="o">*</span><span class="p">)</span><span class="nv">videoScaleManager</span><span class="p">;</span></code></pre>
<h4>Parameters</h4>
<dl>
<dt>hitTester</dt>
<dd><p>The hit tester to be used to correlate a point with a view</p></dd>
<dt>videoScaleManager</dt>
<dd><p>The scale manager that scales from the display screen coordinate system to the app’s viewport coordinate system</p></dd>
</dl>
<div>
<h4>Return Value</h4>
<p>The initialized touch manager</p>
</div>
<h3 id="section--syncFrame">
-syncFrame
</h3>
<p>Called by SDLStreamingMediaManager in sync with the streaming framerate. This helps to moderate panning gestures by allowing the UI to be modified in time with the framerate.</p>
<h4>Objective-C</h4>
<pre class="highlight objective_c"><code><span class="k">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">syncFrame</span><span class="p">;</span></code></pre>
<h4>Swift</h4>
<pre class="highlight swift"><code><span class="kd">func</span> <span class="nf">syncFrame</span><span class="p">()</span></code></pre>
</section>
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