Comments on: Custom UIAlertView (Color chooser)

By: Santosh

Santosh — Fri, 20 Aug 2010 13:33:09 +0000

Thanks for your great tutorial skylar but can’t we increase the width of an alert. In my project i need to increase the width of an alert. I will be happy if u can help me.

By: dskdz

dskdz — Tue, 03 Aug 2010 16:14:51 +0000

How would I access the components that are within the UIAlertView?

By: fgerike

fgerike — Thu, 22 Jul 2010 16:44:49 +0000

Hy!
I’m a beginner, so what is the correct code for”doSomethingWithColor”?

I want to change the uiview color.

Thank you for help!

By: Sahil Goenka

Sahil Goenka — Thu, 08 Jul 2010 21:04:23 +0000

how can i set the frame of uialert withoust using custom alert method

By: ansonlogz

ansonlogz — Tue, 29 Jun 2010 10:16:50 +0000

I embedded uitextview into uialertview,but it didn’t work in SDK4,nothing can input to the uitextview. I don’t know what’s wrong?

By: AustinLee

AustinLee — Sun, 27 Jun 2010 14:31:33 +0000

Hi Skylar, thanks very much, I’ll check the code you provided, and also I’ve posted my code to my blog, if you have time, could help to check it? thanks again.

By: Skylar

Skylar — Sat, 26 Jun 2010 07:17:32 +0000

AustinLee, without seeing code, I can’t say for certain what is causing your problem. It seems to me that instead of destroying each alert after use, you are reusing the same alert. If this is the case, then you can throw a -[setNeedsLayout] call wherever appropriate in your code. However, you should be creating a new alert each time.

Of course, my diagnosis may be wrong, which is why this would be tough to diagnose with just a screenshot.

When I needed to create a UIAlertView with a text field, I subclassed UIAlertView into a new object called UITextFieldAlert. This object behaved the same as UIAlertview except it had the addition of an text field, and the ability to set an object as the delegate of the text field.

You can see the code for UITextFieldAlert in action by compiling the source code here: http://github.com/SkylarEC/ConnectSome It should compile without warnings errors or leaks. If you find any, please let me know. To know what I’m doing, take a look at the code. The code for usage of the UITextFieldAlert object is located in UIDualTablesView.

Videos of the app throughout various stages of its creation are available at http://www.skylarcantu.com/videos/CSPreview/

By: AustinLee

AustinLee — Sat, 26 Jun 2010 06:28:38 +0000

this is really great, I did as what you said, but when the alert view shows up again, the button goes back to its original position, do you know why? you can check the picture in my blog: http://disordertomorrow.blogspot.com/2010/06/wired-thing-after-adding-subview-to.html

By: pierre

pierre — Sun, 20 Jun 2010 15:42:05 +0000

Thanks for the above, what an eye opener.
I want to add an uilertview into my popover in my iPad app.
currently the uialertview screen appear into the center of the screen, my popover is on the left hand side corner
thanks

By: Skylar

Skylar — Sun, 02 May 2010 04:02:34 +0000

Fast, considering I pulled this out of an actual AppStore app that I made ( http://download.pockettouch.net ), I have no shareable project files. However, all the relevant code is available in this post.

As far as adding a UIImage goes, that’s simple. You’d add the UIImage the same way that you’d add the previewView in the above sample. However, if I were making an image view alert view, I’d create it as a new object, a UIImageAlertView or UIImageViewAlertView, whichever makes more sense. I’d use change the init method to be something more like
-initWithTitle:message:image:delegate:cancelButtonTitle:otherButtonTitles:

I’d have that initialization method set a image property of the alert view subclass. I’d override the property setter to have the method set the image as ivar and also calculate the height and width of the image which would be set as separate properties. The image property, of course, would be so that you can change the image at any point without having to destroy the alert and create a new one.

During the -layoutSubviews method, simply refer to the stored image height and width to set the size of the UIImageView. And, in -drawRect:, go ahead and set the image to the UIImageView’s .image property.