Add background shadow to UIButton

Question

How can add a light gray shadow to a UIButton, I don't want a method to do this at the moment, it should be something like:

UIButton *button1... button1.layer.shadowOpacity = 0.8

etc, but that doesn't work, it only adds a shadow inside the button, but I need it on the outside. Thanks!

Please check this http://stackoverflow.com/questions/2315366/how-to-add-a-drop-shadow-to-a-uibutton — Midhun MP, Jun 23 '12 at 11:51
I saw that already, but I don't want methods. Also I'm adding a button to a table cell if that helps. — sebi, Jun 23 '12 at 11:55
please check the answer given by "fzwo". That is not a method. — Midhun MP, Jun 23 '12 at 11:59
I tried that, I even created a button object and replaced self with the button name, but still not working. — sebi, Jun 23 '12 at 12:15
Ok I think I got it, I couldn't see the shadow with a shadow radius of 12, after refusing it to 3 I got it I think. Thanks! — sebi, Jun 23 '12 at 12:45

score 11 · Answer 1 · edited Mar 21 '15 at 15:49

11

First you have to #import <QuartzCore/QuartzCore.h>. Then:

mybtn.layer.shadowColor = [UIColor blackColor].CGColor;
mybtn.layer.shadowOpacity = 0.5;
mybtn.layer.shadowRadius = 2;
mybtn.layer.shadowOffset = CGSizeMake(3.0f,3.0f);

edited Mar 21 '15 at 15:49

Hilton Campbell

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3
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answered Jul 21 '12 at 13:29

arvind

386
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score 0 · Answer 2 · answered Jul 21 '12 at 14:17

You can also use –[UIButton setBackgroundImage:forState:] to set the background image for UIControlStateNormal to one with a shadow. E.g.:

[button setBackgroundImage:[UIImage imageNamed:@"ButtonBackgroundNormal"]
                 forState:UIControlStateNormal];

where ButtonBackgroundNormal.png has a shadow. Images often render faster than drawing with code. And, speed is important, especially if you're adding it to a UITableViewCell. In that case, to speed up scrolling speed, make sure the background image is completely opaque by designing it with the same background color of the UITableViewCell and saving it without transparency. Then, set button.opaque = YES.

Add background shadow to UIButton

2 Answers2

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