CODEWITHSUNDEEP
iosobjective-ccocoa-touch
SNos
SNos

Reputation: 3470

iOS - count swipes

I am trying to count when the there is a left swipe action. However, with the code I have so far the result is always 1.

Any Ideas Why?

- (void)handleSwipes:(UISwipeGestureRecognizer *)sender
{
    int countLeft = 0;

    if (sender.direction == UISwipeGestureRecognizerDirectionLeft)
    {

        countLeft += 1;
        imagesequence = @"2.png";
        [_MainBackground setImage:[ UIImage imageNamed: imagesequence]];

         NSLog(@"LEFT = %d", countLeft);
    }


    if (sender.direction == UISwipeGestureRecognizerDirectionRight)
    {
        NSLog(@"RIGHT");
        imagesequence = @"3.png";
        [_MainBackground setImage:[ UIImage imageNamed: imagesequence]];
    }
}

Upvotes: 0

Views: 76

Answers (1)

Claudio Redi
Claudio Redi

Reputation: 68400

The problem is that int countLeft = 0; is defined inside the method scope so every time it runs, countLeft is defined and initialized to 0, you'll need to promote that to a wider scope to keep the latest execution value (move definition outside method).

Upvotes: 1

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