I have this code:
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer
didFinishSpeechUtterance:(AVSpeechUtterance *)utterance
{
NSTimeInterval delay = 5;
NSLog(@"%s will resume music in %g sec.",__FUNCTION__, delay );
NSRunLoop *currentRunLoop = [ NSRunLoop currentRunLoop ]; //
not nil
[ currentRunLoop cancelPerformSelector: @selector(resumeMusic) target:
self argument: nil ];
[ self performSelector: @selector(resumeMusic) withObject: nil
afterDelay: delay ];
}
- (void)resumeMusic
{
NSLog(@"%s Done!",__FUNCTION__ );
}
When I speak something 7 times I get:
12:13:56.508 -[ContentViewController
speechSynthesizer:didFinishSpeechUtterance:] will resume music in 5 sec.
12:13:57.724 -[ContentViewController
speechSynthesizer:didFinishSpeechUtterance:] will resume music in 5 sec.
12:13:58.908 -[ContentViewController
speechSynthesizer:didFinishSpeechUtterance:] will resume music in 5 sec.
12:14:00.115 -[ContentViewController
speechSynthesizer:didFinishSpeechUtterance:] will resume music in 5 sec.
12:14:01.324 -[ContentViewController
speechSynthesizer:didFinishSpeechUtterance:] will resume music in 5 sec.
12:14:01.527 -[ContentViewController resumeMusic] Done!
12:14:02.520 -[ContentViewController
speechSynthesizer:didFinishSpeechUtterance:] will resume music in 5 sec.
12:14:02.730 -[ContentViewController resumeMusic] Done!
12:14:03.700 -[ContentViewController
speechSynthesizer:didFinishSpeechUtterance:] will resume music in 5 sec.
12:14:03.929 -[ContentViewController resumeMusic] Done!
12:14:05.126 -[ContentViewController resumeMusic] Done!
12:14:06.339 -[ContentViewController resumeMusic] Done!
12:14:07.523 -[ContentViewController resumeMusic] Done!
12:14:08.705 -[ContentViewController resumeMusic] Done!
But I would expect just to get *one* call to "resumeMusic" - 5 sec after the
last call to speechSynthesizer:didFinishSpeechUtterance:. Instead I get 7
calls - each 5 sec after the didFinishSpeechUtterance.
Seems that cancelPerformSelector has no effect at all.
What am I doing wrong?
iOS 7.1.1
Gerriet.
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