How to scroll programmetically to selected cover in coverflow view ?

Posted by hib on Stack Overflow See other posts from Stack Overflow or by hib
Published on 2010-06-14T12:06:52Z Indexed on 2010/06/15 10:42 UTC
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Hi all ,

I am using a coverflow component for my application .

It is working nicely till now .

But now I want to scroll to selected cover in coverflow . I am currently doing this :

    TKCoverView *cover = [self.coverflow coverAtIndex:currentIndex];
    CGRect frame = cover.frame ;
    frame.origin.x = frame.origin.x * 1.2; // **main setting**



    [self.coverflow bringCoverAtIndexToFront:currentIndex animated:YES];

    [self.coverflow scrollRectToVisible:frame animated:YES];

and the cover At index method

- (TKCoverView*) coverflowView:(TKCoverflowView*)coverflowView coverAtIndex:(int)index{

    TKCoverView *cover = [coverflowView dequeueReusableCoverView];

    NSLog(@"Index value :%i",index);

    if(cover == nil){
        cover = [[[TKCoverView alloc] initWithFrame:CGRectMake(0, 0, 224, 300)] autorelease]; // 224
        cover.baseline = 224;
        cover.image = [UIImage imageNamed:@"Placeholder_2.png"];
        cover.tag = index;



    }else {
        cover.image = ((object *)[array objectAtIndex:index]).appIconNormal;
    }


    return cover;

and

- (TKCoverView*) dequeueReusableCoverView{
    if(yard == nil || [yard count] < 1) return nil;

    TKCoverView *v = [[[yard lastObject] retain] autorelease];
    v.layer.transform = CATransform3DIdentity;
    [yard removeLastObject];
    return v;
}

So can any one tell me what is the perfect and standard way of setting the frame for the scrollRectToVisibleRegion method .

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