UITextView Shadow Not Working

Question

I am trying to get a UITextView's layer's shadow to work in a UITableView header. I have a UIView that I am formatting everything in, and then setting the headerview equal to it.

UIView * view = [[UIView alloc] initWithFrame: CGRectMake(0, 0, self.tableView.frame.size.width, 450); UIColor * baseColor = [[UIColor alloc] initWithRed: 45/255.0 green: 100/255.0 blue: 150/255.0 alpha: 1.0]; view.backgroundColor = baseColor; ... UITextView * newCommentField = [[UITextView alloc] initWithFrame:CGRectMake(20, 230, 270, 120)]; newCommentField.text = @"New Comment"; newCommentField.tag = 3; newCommentField.layer.shadowOffset = CGSizeMake(0, 3); newCommentField.layer.shadowRadius = 5.0; newCommentField.layer.shadowColor = [UIColor blackColor].CGColor; newCommentField.layer.shadowOpacity = 0.8; [view addSubview:newCommentField]; ... self.tableView.tableHeaderView = view;

Everything shows up properly in the view. However, the shadow is not appearing. I don't know what is going wrong here. I have even tried modifying the layer's frame and making it the size of the comment field, bigger and the same size.

Whats the height of your header? isn't your newCommentField's height greater than header's? — Neo
– Neo, Commented Sep 3, 2012 at 3:42
Sorry I accidentally didn't copy that in somehow. It is 450. The newCommentField's height is less I think. — AdamG
– AdamG, Commented Sep 3, 2012 at 3:44
And why are you making you header height 450, when the full height of the iphone screen is 460? — Neo
– Neo, Commented Sep 3, 2012 at 3:46
I just want the user to be able to see the the top of the comments. Also it changes to 460 if the user is an admin and I didn't want the admin buttons to be below the screen. — AdamG
– AdamG, Commented Sep 3, 2012 at 3:50
Sorry I should be clear, it is above a tableview with comments in it. — AdamG
– AdamG, Commented Sep 3, 2012 at 3:56

Eugene Gordin · Accepted Answer · 2016-07-27 03:13:11Z

1

You're not setting background color for newCommentField. Try:

newCommentField.backgroundColor = [UIColor whiteColor];

answered Jul 27, 2016 at 3:13

Eugene Gordin

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Comments

Neo · Accepted Answer · 2012-09-03 04:54:03Z

You can do it this way also... Create a view (eg. bgView) of same size as your textView and add that textView as a subView of bgView, which will be added as subView of you header view. Apply the shadow effect to the bgView instead.

UIView *bgView=[[UIView alloc]initWithFrame:CGRectMake(20, 230, 270, 120)]; bgView.backgroundColor=[UIColor whiteColor]; bgView.layer.shadowOffset = CGSizeMake(0, 3); bgView.layer.shadowRadius = 5.0; bgView.layer.shadowColor = [UIColor blackColor].CGColor; bgView.layer.shadowOpacity = 0.8; [bgView addSubview:newCommentField]; [view addSubview:bgView];

@Neo Do you know why we have to use that trick to add a shadow to a uitextview? Thanks.

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