iPhone icons Rearrange functions

svveet · 10-16-2009, 03:14 AM

I have come across that facebook app has the icon rearrange feature just like the feature on iphone home screen

if you dont know what im talking about see the following picture.

Does anyone have any idea how they did it? Im pretty sure there must be a function in the SDK the allows us to perform tasks like this.

I would love to learn how they did it...

and also, how do i generate "X" button next to it?

svveet · 10-18-2009, 08:02 PM

bump on this question.

kohjingyu · 10-18-2009, 08:32 PM

You'll have to build your own. I'm pretty sure those are UIButtons and you can use core animation to animate them by wobbling them about. The 'x' button is also another image.

justill45 · 10-18-2009, 08:35 PM

Quote:

Originally Posted by kohjingyu

You'll have to build your own. I'm pretty sure those are UIButtons and you can use core animation to animate them by wobbling them about. The 'x' button is also another image.

how do you use coreanimation to lets say animate 3 pictures named :

pic1
pic2
pic3

and then loop the animation ?

kohjingyu · 10-18-2009, 09:01 PM

Quote:

Originally Posted by justill45

how do you use coreanimation to lets say animate 3 pictures named :

pic1
pic2
pic3

and then loop the animation ?

Use an NSTimer... *cough* *cough*

svveet · 10-18-2009, 09:56 PM

Thanks for the feedbacks.

so we had to manually animate the buttons?! its gonna be a big job doing that...doh!

also, facebook allows you to rearrange the icon by dragging. how did the grid works?

did they manually do that as well? by checking touch.x touch.y?

svveet · 10-18-2009, 09:57 PM

actually i have seen others app do the same thing, could it be a function that we dont know .....yet?!

kohjingyu · 10-18-2009, 10:18 PM

No, you have to animate the buttons..

I believe there was a tutorial around here somewhere...

Create a CGAffineTransform and rotate the buttons a random number of degrees like

Code:

arc4random % 2 - 1

So you can either get a negative or positive number, then call the function using an NSTimer.

gagandeepb · 12-16-2009, 11:24 AM

Quote:

Originally Posted by svveet

I have come across that facebook app has the icon rearrange feature just like the feature on iphone home screen

if you dont know what im talking about see the following picture.

Does anyone have any idea how they did it? Im pretty sure there must be a function in the SDK the allows us to perform tasks like this.

I would love to learn how they did it...

and also, how do i generate "X" button next to it?

did u find solution i am looking same thing ?