not able to Implement Scrollview(scrolling and zooming) for Gallery View

Asked Jan 21 '14 at 10:00

Active Jan 21 '14 at 10:29

Viewed 67 times

Am using scrollView to implement Gallery like View. But i am stuck. I have dynamic, say 10 pics to be shown in the horizontal scroller, once at a time. am using following code

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{

    UIImageView *img1=[array_for_ImageView objectAtIndex:currentImageView];
    return img1;
}

problem is, it works fine for the first ImageView. But creates a huge rendering problem when trying to zoom the image at 2, 3 etc vertex. I want to implement scrolling and zooming both.

I also used

- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(CGFloat)scale

to check when the zooming end so that I can reset UIscrollView size again. Please guide me.

First image before scrolling

First image after scrolling

Here I tried to zoom the third image and its gone!!

edited Jan 21 '14 at 10:29

asked Jan 21 '14 at 10:00

Jasmeet

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bro set maxzoomscale to change the size – Yohan Jan 21 '14 at 10:15
@Yohan I have already done that. using scrollView_Mag.maximumZoomScale = 3.0; and its zooming. but there's no sync between zooming and scrolling at the same time – Jasmeet Jan 21 '14 at 10:17
syn means could you show any screen shot?? cant get exactly – Yohan Jan 21 '14 at 10:22
@Yohan I have added some Images for the same. in third images i was tring to zoom my third image, and no idea where my third image is – Jasmeet Jan 21 '14 at 10:30
k try to set self.scrollView.zoomScale=1.0; to default wen you scrollViewDidEndZooming is over – Yohan Jan 21 '14 at 10:34
refer this example project https://www.cocoacontrols.com/controls/fgallery – NANNAV Jan 21 '14 at 10:35
@NANNAV I checked it, It too having some issues, not perfect – Jasmeet Jan 21 '14 at 12:31

not able to Implement Scrollview(scrolling and zooming) for Gallery View

0 Answers0