A simple use case for a search bar.

Sample.xml

<?xml version="1.0" encoding="UTF-8"?>
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	<data>
		<int key="IBDocument.SystemTarget">1056</int>
		<string key="IBDocument.SystemVersion">10H574</string>
		<string key="IBDocument.InterfaceBuilderVersion">823</string>
		<string key="IBDocument.AppKitVersion">1038.35</string>
		<string key="IBDocument.HIToolboxVersion">461.00</string>
		<object class="NSMutableDictionary" key="IBDocument.PluginVersions">
			<string key="NS.key.0">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
			<string key="NS.object.0">132</string>
		</object>
		<object class="NSMutableArray" key="IBDocument.EditedObjectIDs">
			<bool key="EncodedWithXMLCoder">YES</bool>
			<integer value="1"/>
		</object>
		<object class="NSArray" key="IBDocument.PluginDependencies">
			<bool key="EncodedWithXMLCoder">YES</bool>
			<string>com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
		</object>
		<object class="NSMutableDictionary" key="IBDocument.Metadata">
			<bool key="EncodedWithXMLCoder">YES</bool>
			<object class="NSArray" key="dict.sortedKeys" id="0">
				<bool key="EncodedWithXMLCoder">YES</bool>
			</object>
			<object class="NSMutableArray" key="dict.values">
				<bool key="EncodedWithXMLCoder">YES</bool>
			</object>
		</object>
		<object class="NSMutableArray" key="IBDocument.RootObjects" id="1000">
			<bool key="EncodedWithXMLCoder">YES</bool>
			<object class="IBProxyObject" id="372490531">
				<string key="IBProxiedObjectIdentifier">IBFilesOwner</string>
				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
			</object>
			<object class="IBProxyObject" id="711762367">
				<string key="IBProxiedObjectIdentifier">IBFirstResponder</string>
				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
			</object>
			<object class="IBUIView" id="191373211">
				<reference key="NSNextResponder"/>
				<int key="NSvFlags">274</int>
				<object class="NSMutableArray" key="NSSubviews">
					<bool key="EncodedWithXMLCoder">YES</bool>
					<object class="IBUISearchBar" id="640492345">
						<reference key="NSNextResponder" ref="191373211"/>
						<int key="NSvFlags">290</int>
						<string key="NSFrameSize">{320, 44}</string>
						<reference key="NSSuperview" ref="191373211"/>
						<int key="IBUIContentMode">3</int>
						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
						<object class="IBUITextInputTraits" key="IBTextInputTraits">
							<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
						</object>
					</object>
				</object>
				<string key="NSFrameSize">{320, 460}</string>
				<reference key="NSSuperview"/>
				<object class="NSColor" key="IBUIBackgroundColor">
					<int key="NSColorSpace">3</int>
					<bytes key="NSWhite">MQA</bytes>
					<object class="NSColorSpace" key="NSCustomColorSpace">
						<int key="NSID">2</int>
					</object>
				</object>
				<object class="IBUISimulatedStatusBarMetrics" key="IBUISimulatedStatusBarMetrics"/>
				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
			</object>
		</object>
		<object class="IBObjectContainer" key="IBDocument.Objects">
			<object class="NSMutableArray" key="connectionRecords">
				<bool key="EncodedWithXMLCoder">YES</bool>
			</object>
			<object class="IBMutableOrderedSet" key="objectRecords">
				<object class="NSArray" key="orderedObjects">
					<bool key="EncodedWithXMLCoder">YES</bool>
					<object class="IBObjectRecord">
						<int key="objectID">0</int>
						<reference key="object" ref="0"/>
						<reference key="children" ref="1000"/>
						<nil key="parent"/>
					</object>
					<object class="IBObjectRecord">
						<int key="objectID">1</int>
						<reference key="object" ref="191373211"/>
						<object class="NSMutableArray" key="children">
							<bool key="EncodedWithXMLCoder">YES</bool>
							<reference ref="640492345"/>
						</object>
						<reference key="parent" ref="0"/>
					</object>
					<object class="IBObjectRecord">
						<int key="objectID">-1</int>
						<reference key="object" ref="372490531"/>
						<reference key="parent" ref="0"/>
						<string key="objectName">File's Owner</string>
					</object>
					<object class="IBObjectRecord">
						<int key="objectID">-2</int>
						<reference key="object" ref="711762367"/>
						<reference key="parent" ref="0"/>
					</object>
					<object class="IBObjectRecord">
						<int key="objectID">3</int>
						<reference key="object" ref="640492345"/>
						<reference key="parent" ref="191373211"/>
					</object>
				</object>
			</object>
			<object class="NSMutableDictionary" key="flattenedProperties">
				<bool key="EncodedWithXMLCoder">YES</bool>
				<object class="NSArray" key="dict.sortedKeys">
					<bool key="EncodedWithXMLCoder">YES</bool>
					<string>-2.CustomClassName</string>
					<string>1.IBEditorWindowLastContentRect</string>
					<string>1.IBPluginDependency</string>
					<string>3.IBPluginDependency</string>
					<string>3.IBViewBoundsToFrameTransform</string>
				</object>
				<object class="NSMutableArray" key="dict.values">
					<bool key="EncodedWithXMLCoder">YES</bool>
					<string>UIResponder</string>
					<string>{{576, 420}, {320, 480}}</string>
					<string>com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
					<string>com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
					<object class="NSAffineTransform">
						<bytes key="NSTransformStruct">P4AAAL+AAADC/AAAwpQAAA</bytes>
					</object>
				</object>
			</object>
			<object class="NSMutableDictionary" key="unlocalizedProperties">
				<bool key="EncodedWithXMLCoder">YES</bool>
				<reference key="dict.sortedKeys" ref="0"/>
				<object class="NSMutableArray" key="dict.values">
					<bool key="EncodedWithXMLCoder">YES</bool>
				</object>
			</object>
			<nil key="activeLocalization"/>
			<object class="NSMutableDictionary" key="localizations">
				<bool key="EncodedWithXMLCoder">YES</bool>
				<reference key="dict.sortedKeys" ref="0"/>
				<object class="NSMutableArray" key="dict.values">
					<bool key="EncodedWithXMLCoder">YES</bool>
				</object>
			</object>
			<nil key="sourceID"/>
			<int key="maxID">3</int>
		</object>
		<object class="IBClassDescriber" key="IBDocument.Classes"/>
		<int key="IBDocument.localizationMode">0</int>
		<string key="IBDocument.TargetRuntimeIdentifier">IBCocoaTouchFramework</string>
		<object class="NSMutableDictionary" key="IBDocument.PluginDeclaredDevelopmentDependencies">
			<string key="NS.key.0">com.apple.InterfaceBuilder.CocoaTouchPlugin.InterfaceBuilder3</string>
			<integer value="3100" key="NS.object.0"/>
		</object>
		<bool key="IBDocument.PluginDeclaredDependenciesTrackSystemTargetVersion">YES</bool>
		<nil key="IBDocument.LastKnownRelativeProjectPath"/>
		<int key="IBDocument.defaultPropertyAccessControl">3</int>
		<string key="IBCocoaTouchPluginVersion">132</string>
	</data>
</archive>