Hi,
I have to add radio buttons in my iPhone application. For that I have got radio button image which is of round in shape. Can I add that image as a subview? and Can I add touchupinside event to UIImage?
A:
You can try using the UIImageView class which just wraps a UIImage inside a UIView container. It supports the touchesBegan/Cancelled events which would be suitable I think.
You might also consider not using with a true radio button setup as you've described and instead going with a more iPhone-like approach--for instance, using a UITableView with cells corresponding to your radio selections and that toggle checked/unchecked on a touch. See the TouchCells example at the Apple iPhone dev site for an example.
drewh
2009-03-19 15:47:49
I have created my radio button class by extending UIButton class, in my radiobutton class, how can I set the buttontype to UIButtonTypeCustom?.
saikamesh
2009-03-19 16:11:11
Custom is the default button type.
Brent Royal-Gordon
2009-03-19 20:37:11
Hi drewh, Finally I did what you suggested. I used UIImageView class and touchesBegan event. It works fine with no issues. Thanks a lot. Thanks to Brent too for giving me ideas.
saikamesh
2009-03-23 06:32:02
+3
A:
iPhone apps do not have radio buttons. The "iPhone-like" way to do this is either by using a picker view or by having several rows in a grouped table view with a check accessory on the chosen row.
If for some reason you really, really feel the need to have radio buttons, use a UIButton with a button type of custom. Set the empty circle as the image for the "normal" control state and the filled circle as the image for the "selected" state.
Brent Royal-Gordon
2009-03-19 15:48:05
I tried what you said, It works fine. Initially the button looks like a round button, but the moment the button is clicked, the frame of the button appears(looks like a square button)
saikamesh
2009-03-20 05:09:54
If this one is not doable, the I have to try something else. So please tell me whether getting rid of this behavior is possible
saikamesh
2009-03-20 12:57:46
You need to change the image for the Highlighted state as well. It should probably be a variant of the Selected button which suggests that you're in the middle of pressing the button.
Brent Royal-Gordon
2009-03-20 20:20:27
To back up Brent's point on this answer, see Apple's iOS Human Interface Guidelines here, where they recommend against using radio buttons in favor of lists, pickers, or switch controls: http://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/MobileHIG/HandleTasks/HandleTasks.html
Josh Brown
2010-10-05 01:49:10
A:
You can also create a UIWebView, load into it HTML that uses radio buttons, and then using the UIWebView delegat methods, monitor the radio value.
It's kind of a hack, but in some cases it's exactly what's called for.
August
2009-03-19 16:03:29