Question

My app runs just fine in the simulator, but now I have a developers license and when I try and run it on my iPod Touch, xcode says GBD: Program received signal: "SIGABRT".

What can i do to figure out what the problem is here? It gives no warnings when building.

EDIT: Sorry, this is my first time running an app on a device, so please bear with me. I just noticed the Organizer window and debugger is giving me a log of what’s happening on the device. So this is the problem:

[UIApplication setStatusBarHidden:withAnimation:]: unrecognized selector sent to instance 0x1160e0

And the code it’s referring to is in (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

This is the code it has a problem with:

`if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft ||
interfaceOrientation == UIInterfaceOrientationLandscapeRight) {

    self.view = clockView;
    [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:NO];
    return YES;


}
if (interfaceOrientation == UIInterfaceOrientationPortrait) {

    self.view = homeView;

    [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:NO];

    return YES;
}
if (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) {

self.view = homeView;
[[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:NO];

    return YES;
}
else {
    return YES;
}

`

Answer 1

[UIApplication setStatusBarHidden:withAnimation:]: unrecognized selector sent to instance 0x1160e0

The method seems to not exist on your device. It was added on 3.2. Which iOS version is your iPod running? Also, the second parameter type is wrong

If it’s lower, and you want to support it, you should consider

    if ([[UIApplication sharedApplication] respondsToSelector:@selector(setStatusBarHidden:withAnimation:)]) {
        [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationNone];
    } else {
        [[UIApplication sharedApplication] setStatusBarHidden:NO animated:NO];
    }