Placement/Positioning/Alignment of UIScrollView w.r.t. length of Title NSString

Posted by Shoaibi on Stack Overflow See other posts from Stack Overflow or by Shoaibi
Published on 2010-04-12T17:55:04Z Indexed on 2010/04/13 2:13 UTC
Read the original article Hit count: 358

I have a scenario where i show stuff like:

-----------------------------------
    titleview (UITextView)       

     ______________              
   tArea (UIScrollView)          
         ttextview (UITextView)  
-----------------------------------

Now here is the condition:

  • Length of titleview's text is dynamic, varies based on user input.

Because of the condition I have trouble placing tArea e.g. UIScrollView on the screen, it either appears way too below than the titleview, or overlaps it.

Previously what i did:

  • Count the number of characters in titleview.text.length and divide them by 27 (e.g. characters in one line when using boldSystemFontOfSize:20) and multiply by 10 to get the starting X of tArea e.g. UIScrollView.

But that sucked. Because i had to duplicate code for rotation to landscape.

What do i have now? :

CGSize titlesize = [title sizeWithFont:[UIFont systemFontOfSize:20] 
                    constrainedToSize:CGSizeMake(5, 90) 
                        lineBreakMode:UILineBreakModeWordWrap];

ttitleview = [[UITextView alloc] initWithFrame:CGRectMake(5, 5, 310,titlesize.height)];
ttitleview.text = title;
ttitleview.font = [UIFont boldSystemFontOfSize:20];
ttitleview.backgroundColor = [UIColor clearColor];
ttitleview.editable = NO;
[self.view addSubview:ttitleview];



CGSize textsize = [ttext sizeWithFont:[UIFont systemFontOfSize:20]
                constrainedToSize:CGSizeMake(5, 350) 
                    lineBreakMode:UILineBreakModeWordWrap];
tArea = [[UIScrollView alloc] initWithFrame:CGRectMake(5, titlesize.height, 310, 230)];
tArea.contentSize = CGSizeMake(310, textsize.height+20);
tArea.pagingEnabled = FALSE;
tArea.scrollEnabled = TRUE;
tArea.backgroundColor = [UIColor clearColor];
[self.view addSubview:tArea];

ttextview = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, 310, textsize.height + 20)];
ttextview.text = ttext;

ttextview.font = [UIFont systemFontOfSize:20];
ttextview.backgroundColor = [UIColor clearColor];
ttextview.editable = NO;
[tArea addSubview:ttextview];

But its no use. Looking for an elegant solution than this.

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