added cancel block

[robegamesios]

Add cancel block for use case where you use a block completion instead of delegate.

[yannickl]

Do you really need a cancel block? The completionBlock provides the same purpose.

[robegamesios]

Hi, can you check, I tried to invoke the completion block trying to cancel the Qr code reader but it does not get fired? Otherwise no need, that's all I was trying to do.

Thanks

Sent from my iPhone

On Jun 10, 2016, at 1:01 PM, Yannick Loriot [email protected] wrote:

Do you really need a cancel block? The completionBlock provides the same purpose.

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[yannickl]

Sorry for the late,

I've tried and everything works for me:

[vc setCompletionWithBlock:^(NSString *resultAsString) {
   NSLog(@"Completion with result: %@", resultAsString);
}];

And when the cancel button is pushed I got:

Completion with result: (null)