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18724133
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2013-09-10T16:20:05.407
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2013-09-10T16:20:05.407
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2017-05-23T11:50:47.463
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It is answered before: <a href="https://stackoverflow.com/questions/13890127/stopping-sound-in-xcode/18724050#18724050">Stopping sound in Xcode</a> But I can repeat my answer. Summarizing, the sentence to STOP the sound file is: <pre><code>AudioServicesDisposeSystemSoundID (soundFileObject); </code></pre> Explanation (Important to understand): I have a table view with 18 different sound files. When user select a row must sound the corresponding file and when select another row, it must STOP the previous sound and play other. All this stuff it is necessary: 1) Add to your project "AudioToolbox.framework" inside "Build Phases", inside "Link Binary With Libraries" 2) In header file (in my project it calls "GenericTableView.h") add these sentences: <pre><code>#include <AudioToolbox/AudioToolbox.h> CFURLRef soundFileURLRef; SystemSoundID soundFileObject; @property (readwrite) CFURLRef soundFileURLRef; @property (readonly) SystemSoundID soundFileObject; </code></pre> 3) In implement file (in my project it calls "GenericTableView.m") add these sentences: <pre><code>@synthesize soundFileURLRef; @synthesize soundFileObject; </code></pre> And inside your "Action" implementation or in my case, in: <pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // ----------------------------------------------------------------------- // ----------------------------------------------------------------------- // ----------------------------------------------------------------------- // // That is the question: a way to STOP sound file // // ----------------------------------------------------------------------- // Very important to STOP the sound file AudioServicesDisposeSystemSoundID (soundFileObject); // ----------------------------------------------------------------------- // ----------------------------------------------------------------------- // ----------------------------------------------------------------------- // In my project "rowText" is a field that save the name of the // corresponding sound (depending on row selected) // It can be a string, @"Alarm Clock Bell" in example // Create the URL for the source audio file. // URLForResource:withExtension: method is new in iOS 4.0. NSURL *soundURL = [[NSBundle mainBundle] URLForResource:rowText withExtension:@"caf"]; // Store the URL as a CFURLRef instance self.soundFileURLRef = (CFURLRef) [soundURL retain]; // Create a system sound object representing the sound file. AudioServicesCreateSystemSoundID (soundFileURLRef,&soundFileObject); AudioServicesPlaySystemSound (soundFileObject); [soundURL release]; } </code></pre> 4) Finally, in the same implement file (in my project it calls "GenericTableView.m"): <pre><code>- (void)dealloc { [super dealloc]; AudioServicesDisposeSystemSoundID (soundFileObject); //CFRelease (soundFileURLRef); } </code></pre> I must to comment "CFRelease (soundFileURLRef)" because the App ends unexpectedly when user leaves the table view. All this code is proportioned by Apple. In this link you can find even a sample code to test directly in your iPhone simulator. <a href="https://developer.apple.com/library/ios/samplecode/SysSound/Introduction/Intro.html#//apple_ref/doc/uid/DTS40008018-Intro-DontLinkElementID_2" rel="nofollow noreferrer">https://developer.apple.com/library/ios/samplecode/SysSound/Introduction/Intro.html#//apple_ref/doc/uid/DTS40008018-Intro-DontLinkElementID_2</a>
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