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GREYCondition Class Reference
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<a href="../Functions.html#/c:@F@NSStringFromGREYContentEdge">NSStringFromGREYContentEdge</a>
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<a href="../Functions.html#/c:@F@NSStringFromGREYDirection">NSStringFromGREYDirection</a>
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<a href="../Functions.html#/c:@F@NSStringFromGREYLayoutAttribute">NSStringFromGREYLayoutAttribute</a>
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<a href="../Functions.html#/c:@F@NSStringFromGREYLayoutRelation">NSStringFromGREYLayoutRelation</a>
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<a href="../Functions.html#/c:@F@grey_accessibilityHint">grey_accessibilityHint</a>
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<a href="../Functions.html#/c:@F@grey_accessibilityID">grey_accessibilityID</a>
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<a href="../Functions.html#/c:@F@grey_accessibilityLabel">grey_accessibilityLabel</a>
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<a href="../Functions.html#/c:@F@grey_accessibilityTrait">grey_accessibilityTrait</a>
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<a href="../Functions.html#/c:@F@grey_accessibilityValue">grey_accessibilityValue</a>
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<a href="../Functions.html#/c:@F@grey_allOf">grey_allOf</a>
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<a href="../Functions.html#/c:@F@grey_allOfMatchers">grey_allOfMatchers</a>
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<a href="../Functions.html#/c:@F@grey_ancestor">grey_ancestor</a>
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<a href="../Functions.html#/c:@F@grey_anyOf">grey_anyOf</a>
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<a href="../Functions.html#/c:@F@grey_anyOfMatchers">grey_anyOfMatchers</a>
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<a href="../Functions.html#/c:@F@grey_anything">grey_anything</a>
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<a href="../Functions.html#/c:@F@grey_buttonTitle">grey_buttonTitle</a>
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<a href="../Functions.html#/c:@F@grey_clearText">grey_clearText</a>
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<a href="../Functions.html#/c:@F@grey_closeTo">grey_closeTo</a>
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<a href="../Functions.html#/c:@F@grey_conformsToProtocol">grey_conformsToProtocol</a>
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<a href="../Functions.html#/c:@F@grey_createImagePixelDataFromCGImageRef">grey_createImagePixelDataFromCGImageRef</a>
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<a href="../Functions.html#/c:@F@grey_datePickerValue">grey_datePickerValue</a>
</li>
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<a href="../Functions.html#/c:@F@grey_descendant">grey_descendant</a>
</li>
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<a href="../Functions.html#/c:@F@grey_doubleTap">grey_doubleTap</a>
</li>
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<a href="../Functions.html#/c:@F@grey_doubleTapAtPoint">grey_doubleTapAtPoint</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_enabled">grey_enabled</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_equalTo">grey_equalTo</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_execute_async">grey_execute_async</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_execute_sync">grey_execute_sync</a>
</li>
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<a href="../Functions.html#/c:@F@grey_firstResponder">grey_firstResponder</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_getFailureHandler">grey_getFailureHandler</a>
</li>
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<a href="../Functions.html#/c:@F@grey_greaterThan">grey_greaterThan</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_interactable">grey_interactable</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_javaScriptExecution">grey_javaScriptExecution</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_keyWindow">grey_keyWindow</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_kindOfClass">grey_kindOfClass</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_layout">grey_layout</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_lessThan">grey_lessThan</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_longPress">grey_longPress</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_longPressAtPointWithDuration">grey_longPressAtPointWithDuration</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_longPressWithDuration">grey_longPressWithDuration</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_minimumVisiblePercent">grey_minimumVisiblePercent</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_moveSliderToValue">grey_moveSliderToValue</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_multiFingerSwipeFastInDirection">grey_multiFingerSwipeFastInDirection</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_multiFingerSwipeFastInDirectionWithStartPoint">grey_multiFingerSwipeFastInDirectionWithStartPoint</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_multiFingerSwipeSlowInDirection">grey_multiFingerSwipeSlowInDirection</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_multiFingerSwipeSlowInDirectionWithStartPoint">grey_multiFingerSwipeSlowInDirectionWithStartPoint</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_multipleTapsWithCount">grey_multipleTapsWithCount</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_nil">grey_nil</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_not">grey_not</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_notNil">grey_notNil</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_notVisible">grey_notVisible</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_pickerColumnSetToValue">grey_pickerColumnSetToValue</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_pinchFastInDirectionAndAngle">grey_pinchFastInDirectionAndAngle</a>
</li>
<li class="nav-group-task">
<a href="../Functions.html#/c:@F@grey_pinchSlowInDirectionAndAngle">grey_pinchSlowInDirectionAndAngle</a>
</li>
<li class="nav-group-task">
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<article class="main-content">
<section>
<section class="section">
<h1>GREYCondition</h1>
<div class="declaration">
<div class="language">
<pre class="highlight"><code><span class="k">@interface</span> <span class="nc">GREYCondition</span> <span class="p">:</span> <span class="nc">NSObject</span></code></pre>
</div>
</div>
<p>A class for creating boolean conditions that can be waited on until the condition is satisfied
or a timeout elapses.</p>
<p>Conditions are specified in the form of a block that returns a @c BOOL value indicating whether
the condition is met.</p>
</section>
<section class="section task-group-section">
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/c:objc(cs)GREYCondition(cm)conditionWithName:block:"></a>
<a name="//apple_ref/objc/Method/+conditionWithName:block:" class="dashAnchor"></a>
<a class="token" href="#/c:objc(cs)GREYCondition(cm)conditionWithName:block:">+conditionWithName:block:</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Creates a condition with a block that should return @c YES when the condition is met.</p>
</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">conditionWithName</span><span class="p">:(</span><span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="nv">name</span>
<span class="nf">block</span><span class="p">:(</span><span class="n">BOOL</span> <span class="p">(</span><span class="o">^</span><span class="p">)(</span><span class="kt">void</span><span class="p">))</span><span class="nv">conditionBlock</span><span class="p">;</span></code></pre>
</div>
</div>
<div>
<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>name</em>
</code>
</td>
<td>
<div>
<p>A descriptive name for the condition</p>
</div>
</td>
</tr>
<tr>
<td>
<code>
<em>conditionBlock</em>
</code>
</td>
<td>
<div>
<p>The block that will be used to evaluate the condition.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<h4>Return Value</h4>
<p>A new initialized GREYCondition instance.</p>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/c:objc(cs)GREYCondition(im)init"></a>
<a name="//apple_ref/objc/Method/-init" class="dashAnchor"></a>
<a class="token" href="#/c:objc(cs)GREYCondition(im)init">-init</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>@remark init is not an available initializer. Use the other initializers.</p>
</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="n">init</span><span class="p">;</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/c:objc(cs)GREYCondition(im)initWithName:block:"></a>
<a name="//apple_ref/objc/Method/-initWithName:block:" class="dashAnchor"></a>
<a class="token" href="#/c:objc(cs)GREYCondition(im)initWithName:block:">-initWithName:block:</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Initializes a condition with a block that should return @c YES when the condition is met.</p>
</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">initWithName</span><span class="p">:(</span><span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="nv">name</span>
<span class="nf">block</span><span class="p">:(</span><span class="n">BOOL</span> <span class="p">(</span><span class="o">^</span><span class="p">)(</span><span class="kt">void</span><span class="p">))</span><span class="nv">conditionBlock</span><span class="p">;</span></code></pre>
</div>
<div class="language">
<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">name</span><span class="p">:</span> <span class="kt">String</span><span class="o">!</span><span class="p">,</span> <span class="n">block</span> <span class="nv">conditionBlock</span><span class="p">:</span> <span class="p">(()</span> <span class="o">-&gt;</span> <span class="kt">Bool</span><span class="p">)</span><span class="o">!</span><span class="p">)</span></code></pre>
</div>
</div>
<div>
<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>name</em>
</code>
</td>
<td>
<div>
<p>A descriptive name for the condition</p>
</div>
</td>
</tr>
<tr>
<td>
<code>
<em>conditionBlock</em>
</code>
</td>
<td>
<div>
<p>The block that will be used to evaluate the condition.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<h4>Return Value</h4>
<p>The initialized instance.</p>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/c:objc(cs)GREYCondition(im)waitWithTimeout:"></a>
<a name="//apple_ref/objc/Method/-waitWithTimeout:" class="dashAnchor"></a>
<a class="token" href="#/c:objc(cs)GREYCondition(im)waitWithTimeout:">-waitWithTimeout:</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Waits for the condition to be met until the specified @c seconds have elapsed.</p>
<p>Will poll the condition as often as possible on the main thread while still giving a fair chance
for other sources and handlers to be serviced.</p>
<p>@remark Waiting on conditions with this method is very CPU intensive on the main thread. If
you do not need to return immediately after the condition is met, the consider using
GREYCondition::waitWithTimeout:pollInterval:</p>
</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">BOOL</span><span class="p">)</span><span class="nf">waitWithTimeout</span><span class="p">:(</span><span class="n">CFTimeInterval</span><span class="p">)</span><span class="nv">seconds</span><span class="p">;</span></code></pre>
</div>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">wait</span><span class="p">(</span><span class="n">withTimeout</span> <span class="nv">seconds</span><span class="p">:</span> <span class="kt">CFTimeInterval</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Bool</span></code></pre>
</div>
</div>
<div>
<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>seconds</em>
</code>
</td>
<td>
<div>
<p>Amount of time to wait for the condition to be met, in seconds.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<h4>Return Value</h4>
<p>@c YES if the condition was met before the timeout, @c NO otherwise.</p>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/c:objc(cs)GREYCondition(im)waitWithTimeout:pollInterval:"></a>
<a name="//apple_ref/objc/Method/-waitWithTimeout:pollInterval:" class="dashAnchor"></a>
<a class="token" href="#/c:objc(cs)GREYCondition(im)waitWithTimeout:pollInterval:">-waitWithTimeout:pollInterval:</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Waits for the condition to be met until the specified @c seconds have elapsed. Will poll the
condition immediately and then no more than once every @c interval seconds. Will attempt to poll
the condition as close as possible to every @c interval seconds.</p>
<p>@remark Will allow the main thread to sleep instead of busily checking the condition.</p>
</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">BOOL</span><span class="p">)</span><span class="nf">waitWithTimeout</span><span class="p">:(</span><span class="n">CFTimeInterval</span><span class="p">)</span><span class="nv">seconds</span>
<span class="nf">pollInterval</span><span class="p">:(</span><span class="n">CFTimeInterval</span><span class="p">)</span><span class="nv">interval</span><span class="p">;</span></code></pre>
</div>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">wait</span><span class="p">(</span><span class="n">withTimeout</span> <span class="nv">seconds</span><span class="p">:</span> <span class="kt">CFTimeInterval</span><span class="p">,</span> <span class="n">pollInterval</span> <span class="nv">interval</span><span class="p">:</span> <span class="kt">CFTimeInterval</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Bool</span></code></pre>
</div>
</div>
<div>
<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>seconds</em>
</code>
</td>
<td>
<div>
<p>Amount of time to wait for the condition to be met, in seconds.</p>
</div>
</td>
</tr>
<tr>
<td>
<code>
<em>interval</em>
</code>
</td>
<td>
<div>
<p>The minimum time that should elapse between checking the condition.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<h4>Return Value</h4>
<p>@c YES if the condition was met before the timeout, @c NO otherwise.</p>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/c:objc(cs)GREYCondition(im)name"></a>
<a name="//apple_ref/objc/Method/-name" class="dashAnchor"></a>
<a class="token" href="#/c:objc(cs)GREYCondition(im)name">-name</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
</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">NSString</span> <span class="o">*</span><span class="p">)</span><span class="n">name</span><span class="p">;</span></code></pre>
</div>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">name</span><span class="p">()</span> <span class="o">-&gt;</span> <span class="kt">String</span><span class="o">!</span></code></pre>
</div>
</div>
<div>
<h4>Return Value</h4>
<p>Name of the condition.</p>
</div>
</section>
</div>
</li>
</ul>
</div>
</section>
</section>
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