iphone viewForZoomingInScrollView not called

Question

Edit: I have controller containing uiscrollview. That scrollview contains custom uiview having its separate class inherited from uiview. That uiview has uiimageview as subview. No i am taking "(UIView*)viewForZoomingInScrollView:(UIScrollView *)scrollView" in main controller. But that method didn't get fire when i zoom scrollview. What should i do so that this method may get called.

UIView *DrawingPlusImageView = [[UIView alloc]initWithFrame:CGRectMake((i*IMAGEVIEW_IPAD_LAND_X+112), 0, 800, 600)];

    IDDrawingView *drawView = [[IDDrawingView alloc]initWithFrame:CGRectMake(0, 0, 800, 600)];

    UIImageView* imgViewLand = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 800, 600)];
    [imgViewLand setImage:[UIImage imageNamed:@"noFileSelected.png"]];
    [drawView setImageToDraw:imgViewLand.image];
    //        drawView.delegate = self;
    [drawView setCurrentSlidId:hmslide.strSlideID];
    [DrawingPlusImageView addSubview:imgViewLand];
    [DrawingPlusImageView addSubview:drawView];


    [scrollViewPresentation addSubview:DrawingPlusImageView];
    drawView.userInteractionEnabled = YES;

- (UIView*)viewForZoomingInScrollView:(UIScrollView *)scrollView {
// Return the view that we want to zoom

return  [self.scrollViewPresentation.subviews objectAtIndex:1];// there are slides, im zooming the second
}

Answer 1

I was having the same problem. and setting the minimum and maximum zoom levels for ScrollView solved my problem..try

self. scrollViewPresentation.minimumZoomScale = 1.0;
self. scrollViewPresentation.maximumZoomScale = 10.0;