Question

I have a UIScrollView in which I am adding a subview which is a TimeLineView(a UIView).For the purpose of displaying; initially I just did the same and the TimeLineView got displayed without any problem. But now I want to have a UIView just above the UIScrollView where I can display some information about the the timeline.

Do I need to decrease the height of the UIScrollView so that the UIView gets fit on the space above it? If yes, How would I do that?

If there’s another way…then please let me know.
All my initial implementations are as follows :

in .h

@property (nonatomic, readonly) UIScrollView *scrollView;
@property (nonatomic, readonly) TimeLineView *timelineView;

in .m

@synthesize scrollView = scrollView;
@synthesize timelineView = timelineView;

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        [self prepareCustomView];
    }
    return self;
}

- (id)initWithCoder:(NSCoder *)decoder 
{    
    self = [super initWithCoder:decoder];
    if (self) {
        [self prepareCustomView];
    }
    return self;
}

- (void)prepareCustomView {
    // Initialization code

    // Add main scroll view
[self addSubview:self.scrollView];

    // Add timeline view inside scrollview
[self.scrollView addSubview:self.timelineView];


}


- (UIScrollView *)scrollView
{
    if (!scrollView) {
        scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0.0f, TOP_BAR_HEIGHT, self.bounds.size.width, self.bounds.size.height-TOP_BAR_HEIGHT-FOOTER_HEIGHT)];
        scrollView.contentSize = CGSizeMake(self.bounds.size.width,TIMELINE_HEIGHT);
        scrollView.scrollEnabled = TRUE;
        scrollView.backgroundColor =[UIColor whiteColor];
        scrollView.alwaysBounceVertical = TRUE;
    }
    return scrollView;
}

Thanks in advance for the help.

Answer 1

Yes you have to change y-axis and decrease the height of scrollview by the height of your UIView.You have to change the frame of your scrollview as follows if the scrollview is just below UIView:

scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0.0f, UIViewFrame.size.height+UIViewFrame.origin.y, self.bounds.size.width, self.bounds.size.height-TOP_BAR_HEIGHT-FOOTER_HEIGHT-UIViewFrame.size.height)];

where UIViewFrame is the frame of your UIView.