CODEWITHSUNDEEP
iphonexcodecarousel
cdsoft
cdsoft

Reputation: 631

ICarousel Menu infinite loop

I'm writting an Iphone application using with Icarousel. I used 2 carousel. When i scroll first, second scroll with first one and when i scroll second, first scroll with the second one.

I can do this correctly but I have a problem that is infinite loop.

   - (void)carouselDidEndScrollingAnimation:(iCarousel *)Carousel
{  
    if (Carousel == carouselSecond)
    {
        NSLog(@"***Second Scroll");
       [carouselFirst scrollToItemAtIndex:carouselSecond.currentItemIndex duration:2];
    }
    else if(Carousel == carouselFirst)
    {
        NSLog(@"***First Scroll");
    [carouselSecond scrollToItemAtIndex:carouselFirst.currentItemIndex duration:2];
    }
}

Display is **Second Scroll **First Scroll **Second Scroll **First Scroll **Second Scroll **First Scroll **Second Scroll **First Scroll ......

Upvotes: 1

Views: 1271

Answers (1)

gasparuff
gasparuff

Reputation: 2295

Use an Integer variable to keep track of how many times the carousel has been scrolled. In your .h file add:

@property (nonatomic) NSUInteger numberofScrolls;

in viewDidLoaddo this:

self.numberofScrolls=0;

and try this:

 - (void)carouselDidEndScrollingAnimation:(iCarousel *)Carousel
{  
self.numberofScrolls++;
if(self.numberofScrolls%2!=0){    
    if (Carousel == carouselSecond)
    {
        NSLog(@"***Second Scroll");
       [carouselFirst scrollToItemAtIndex:carouselSecond.currentItemIndex duration:2];
    }
    else if(Carousel == carouselFirst)
    {
        NSLog(@"***First Scroll");
        [carouselSecond scrollToItemAtIndex:carouselFirst.currentItemIndex duration:2];
    }
}

}

Let me explain what it does: When the view loads, we set numberofScrolls to 0. When user stops scrolling, the carouselDidEndScrollingAnimation gets called --> we increase numberofScrolls by 1 and carousel 2 gets scrolled to the same position. After carousel 2 is done with scrolling, carouselDidEndScrollingAnimation gets called again. We increase numberofScrolls once again (it is now 2). But this time we don't need to scroll the other view again and self.numberofScrolls%2 becomes 0.

Upvotes: 2

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