CODEWITHSUNDEEP
iphonexcodebuild
Sjdev18
Sjdev18

Reputation:

IPhone application won't launch correctly

So I'm developing and iPhone game right now and everything has been working just fine when I test it on my first gen iPod touch. Last night, I added in some NSUserDefaults stuff to save a few variables for it. I ran it on the simulator a few times and it worked perfectly, but when I built the app and put it on my iPod, all I got when I launched it was a black screen. Anyone have any ideas? They would be much appreciated, thank you.

Upvotes: 1

Views: 1416

Answers (3)

Grouchal
Grouchal

Reputation: 9796

You need to run it on the iPod touch with the debugger switched on - you should be able to track this down.

Do you know about setting a breakpoint for exceptions - if you tell the debugger to break on objc_exception_throw it is extreemly useful in these cases.

Upvotes: 1

Reed Olsen
Reed Olsen

Reputation: 9169

I recommend deleting the application from your iPod Touch first then trying to install it again. When are you trying to read from NSUserDefaults? In your applicationWillFinishLaunching call? If so, try to comment that out to ensure that it really is the source of your problem.

Upvotes: 2

zpesk
zpesk

Reputation: 4353

Do you have a custom Default.png file? If no, then you will see a black screen while your application loads. Depending what type of (possibly unending) operations you are doing on load this might be the reason you are seeing a black screen. Remember the simulator runs on top of the processor in your mac which is significantly faster than the processor in your iPod Touch.

Upvotes: 0

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