I can't believe I'm asking this...

[gabacus]

Hi All,

It has been a while since I have worked on a project for the iPhone and I find that I am rusty as ever! I'm a noob all over again!! haha

All I am trying to do at the moment is put a little glow around a button after it is pressed. So simple an idea!

User presses button, imageView changes state from hidden to not hidden and then goes away after a few seconds.

The only problem I have at the moment is setting the center of the imageView (the glow) to the center of the button (a custom button).

Anyway, the code looks like

glowImage.centre = myButton.center;

Any ideas as to why this isn't working?

Cheers.

[Duncan C]

Originally Posted by gabacus

Hi All,

It has been a while since I have worked on a project for the iPhone and I find that I am rusty as ever! I'm a noob all over again!! haha

All I am trying to do at the moment is put a little glow around a button after it is pressed. So simple an idea!

User presses button, imageView changes state from hidden to not hidden and then goes away after a few seconds.

The only problem I have at the moment is setting the center of the imageView (the glow) to the center of the button (a custom button).

Anyway, the code looks like

glowImage.centre = myButton.center;

Any ideas as to why this isn't working?

Cheers.

You spelled center wrong for glowImage (at least wrong for iOS.) Are you a Brit? Centre, tyre, theatre, etc?

[gabacus]

haha... yes, I did spell it wrong here, but the code has the right spelling (thank god for code completion!)

glowImage.center = myButton.center; // still doesn't work.

Oh, and I am from Australia by the way :-)

[abhimanipal]

Let me see if I have understood your question correctly. You have a button and you want to set an image on top of the button. Maybe this piece of code will help you out

UIButton *button1= [UIButton buttonWithType:UIButtonTypeRoundedRect];
	UIImage *image1 = [UIImage imageNamed:@"greenLightSmall.png"];
	
	button1.frame= CGRectMake(10.0, 10.0, 100.0, 100.0);
	[button1 setTitle:@"Button1" forState:UIControlStateNormal];
	[button1 setImage:image1 forState:UIControlStateNormal];

I apologize if I did not get your question correctly

[gabacus]

no need to apologise for trying to help out!!

if there is any confusion its because i didnt ask the question properly!

i have set up the button in interface builder, not in code (this is my first experience with interface builder, i usually do everything by code...)

i dont want to change the button image, all i want to do is display another image on the screen when a button is pressed.

the code works fine in that an image is displayed with the button is pressed. my problem is that the button is in the wrong place.

i am trying to set the center of the image to the center of the button so that the image sits on top of the button (no change to the actually button image).

currently, when i push the button the image is displayed in the top left hand corner of the screen (default 0,0 coordinates).

does that make sense?

[smasher]

Originally Posted by gabacus

currently, when i push the button the image is displayed in the top left hand corner of the screen (default 0,0 coordinates).

does that make sense?

It does. I think you forgot to hook up the myButton outlet, so myButton.center is returning zero.

Throw a breakpoint on that line and mouse over myButton; is it nil or 0x0? If so I'm right. Or just open your .xib and check the myButton outlet.

[gabacus]

thats it!

i had connected up the outlets but later made changes to the artwork and didnt reconnect!

thank you so much for pointing that out... clearly, i need a little more experience with interface builder.

cheers

[gabacus]

incidentally, I was also having trouble with my buttons not changing their image when they were being deactivated... I left that on the "to fix later" list but this solution also solved that problem... so double thank you!!