Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-03 Thread WT
Thank you, Glenn and David. In a perfect world, the application would be designed in a way that completely abstracts how the animations are going to be implemented but, alas, I'm not that experienced yet, so I am still trying to ascertain what the best approach to go with is, so I won't hav

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-03 Thread David Duncan
On Apr 2, 2009, at 8:11 PM, WT wrote: 25 was just a test. The actual app has 2 interlocking 7x7 grids, so the number of image views is actually 98. I should explain that this animated laying out of image views happens only once and, from that point on, the image views all remain in the same

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-03 Thread glenn andreas
On Apr 3, 2009, at 10:15 AM, WT wrote: I do have a custom UIView for the grid, but it doesn't do much for now, since I'm currently using the UIImageView instances to do the heavy lifting. You are aware that you can pass an array of UIImages to a UIView and it will animate them at whate

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-03 Thread WT
I do have a custom UIView for the grid, but it doesn't do much for now, since I'm currently using the UIImageView instances to do the heavy lifting. You are aware that you can pass an array of UIImages to a UIView and it will animate them at whatever speed you tell it, right? It's not

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-03 Thread glenn andreas
I do have a custom UIView for the grid, but it doesn't do much for now, since I'm currently using the UIImageView instances to do the heavy lifting. You are aware that you can pass an array of UIImages to a UIView and it will animate them at whatever speed you tell it, right? It's not

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-03 Thread WT
Presuming that this is full-size, It is uncommon to have views that are so small (the balls must be, what, 4X4 pixels or something?), I'd say. No, no, the smallest ball is 13x13 pixels and the whole picture is nearly 320 pixels on each side. I had to shrink the picture to such a small siz

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-03 Thread James Montgomerie
On 2 Apr 2009, at 22:33, WT wrote: 25 was just a test. The actual app has 2 interlocking 7x7 grids, so the number of image views is actually 98. I should explain that this animated laying out of image views happens only once and, from that point on, the image views all remain in the same p

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-02 Thread WT
25 was just a test. The actual app has 2 interlocking 7x7 grids, so the number of image views is actually 98. I should explain that this animated laying out of image views happens only once and, from that point on, the image views all remain in the same place, though each image itself is an

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-02 Thread James Montgomerie
25 image views seems a /little/ on the high side (probably not enough to cause major worry), but other than that it seems like a perfectly good approach. If you haven't already, and it's something that possible, you might want to consider what to do (i.e. should you try to stop the timer) i

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-01 Thread WT
Indeed. I actually already knew that - performSelector:withObject:afterDelay: executes in the caller's thread but, in n my haste to throw together a quick test, succumbed to my thread-safety obsession (thanks to years of Java programming). No harm, though. I ended up doing something sligth

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-01 Thread WT
Indeed. I actually already knew that - performSelector:withObject:afterDelay: executes in the caller's thread but, in n my haste to throw together a quick test, succumbed to my thread-safety obsession (thanks to years of Java programming). No harm, though. I ended up doing something sligth

Re: How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-04-01 Thread James Montgomerie
This is not doing exactly what you think it is. You are certainly right that UIKit calls should /always/ be made from the main thread, but the "performSelector:withObject:AfterDelay" method actually performs the selector on the same thread that you call it from, not a separate thread. This

How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-03-31 Thread WT
Hello again, in anticipation that the answer to my question might be to add UIImageViews as subviews rather than to draw UIImages from within the superview's drawRect:, I tried the following little test, which works like a charm. The question remains, though, whether this is the right/ bes

How to animate the drawing of UIImages inside a drawRect: method of a UIView?

2009-03-31 Thread WT
Hello, in the drawRect: method of one of my app's UIViews, I'm drawing a grid of images, one per grid point. The code below works great except, of course, that it ignores the animating argument. I would like to animate the drawing by drawing what appears to the user as one image at a time