tableViewCell中的button点击延迟的解决方法

- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesBegan:touches withEvent:event]; 
   
[NSOperationQueue.mainQueue 	addOperationWithBlock:^{ self.highlighted = YES; }];
	}



- (void) touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesCancelled:touches withEvent:event];
 
[self performSelector:@selector(setDefault) withObject:nil afterDelay:0.1];
}



- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesEnded:touches withEvent:event]; 
   
[self performSelector:@selector(setDefault) withObject:nil afterDelay:0.1];
}	



- (void)setDefault
{
[NSOperationQueue.mainQueue addOperationWithBlock:^{ self.highlighted = NO; }]
}