No response here, so I've filed an Apple bug for this: 5610019.
- Matt
On 19-Nov-07, at 4:04 PM, Matt Budd wrote:
We found a strange crash in our app with NSAnimation. It appears
to have something to do with the blocking mode of
NSAnimationNonBlockingThreaded.
The crash is very reproduceable, and you can do it simply with
the attached sample code. Create a new app, put a textfield on
the main window in IB, instantiate the AppController object in
IB, and set it to be the window's delegate (and hook up the text
field you created).
If you then run the code and resize the window a bunch, it will
crash on you. Usually takes about 10-20 seconds of resizing.
However, if I change the NSAnimationNonblockingThreaded to
NSAnimationNonblocking, it doesn't crash and works fine.
Unfortunately, my app requires each animation to be in its own
thread, so I need to use that mode.
Any ideas what is happening here? When I try it on Tiger, it
doesn't crash, but the weird thing always was that the number of
threads (from Activity Monitor) goes through the roof...it's like
they never die off when I stop and restart the animation. Does
Leopard enforce a maximum number of threads or something?
- Matt
//--------------------------------------------------
#import <Cocoa/Cocoa.h>
@interface AppController : NSObject {
IBOutlet NSTextField *lblValue; //Attach this to a NSTextView
in IB
NSAnimation *_oAnimator;
}
@end
@implementation AppController
- (id)init
{
if (self = [super init]) {
_oAnimator = [[NSAnimation alloc] init];
[_oAnimator setDelegate: self];
[_oAnimator setAnimationBlockingMode:
NSAnimationNonblockingThreaded];
[_oAnimator setAnimationCurve: NSAnimationEaseInOut];
[_oAnimator addProgressMark: 0.00];
[_oAnimator addProgressMark: 0.25];
[_oAnimator addProgressMark: 0.50];
[_oAnimator addProgressMark: 0.75];
[_oAnimator addProgressMark: 1.00];
}
return self;
}
- (void)dealloc
{
[_oAnimator setDelegate: nil];
[_oAnimator release];
[super dealloc];
}
- (void)windowDidResize: (NSNotification *)poNotification
{
[_oAnimator stopAnimation];
[_oAnimator setDuration: 1.0];
[_oAnimator startAnimation];
}
- (void)animation: (NSAnimation*)poAnimation
didReachProgressMark: (NSAnimationProgress)pfProgress
{
if (poAnimation == _oAnimator) {
[lblValue setStringValue: [NSString stringWithFormat: @"%
f", pfProgress]];
}
}
@end
//--------------------------------------------------
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/m.redington%
40ucl.ac.uk
This email sent to email@hidden
