Hi there, I am attempting to create a countdown widget in my app. Using the blank screen plugin, I am trying out the code provided on this website. http://iphoneapp-dev.blogspot.it/2010/10/how-to-create-countdown-timer-in-iphone.html#comment-form I am getting an error “use of undeclared identifier” and “unused variable" My guess is this code was written in pre 4.5 days so some modification is required? Any thoughts anyone? I am not even sure if this is a reliable site, but I thought it was worth a try. Here’s a couple of screenshots from Xcode of what happens when I use this code. https://www.dropbox.com/sh/uujlnafwdf5lstw/OarysZ9Yuj

you might need to declare those three variables in your .h file (@property), and synthesize them in the .m file.

Hi @Dervalo, I agree with @Stobe with your files. LA

Not really sure how to do that… Is it something like this: for h file: @property (nonatomic) int secondsLeft; @property (nonatomic) int minutes; @property (nonatomic) int hours; @property (nonatomic) int seconds; ..and for m.file? @synthesize secondsLeft; @synthesize hours; @synthesize minutes; @synthesize seconds;

yes, but for the @synthesize, you can string them together on one line @synthesize secondsLeft, hours, minutes, seconds; (same result - just less typing)

no more red errors… just yellow: Local declaration of 'secondsLeft' hides instance variable and unused variables hours, minutes and seconds (this one was there the last time too). Can you help? Thanks

I'd probably have to see more screenshots. But in the last ones, it looks like you had "_secondsLeft" some places and "secondsLeft" in other places. Was that intentional?

https://www.dropbox.com/sh/uujlnafwdf5lstw/OarysZ9Yuj Here’s a couple more screenshots. I had originally tried _secondsLeft but when it didn’t work, I removed them. Thanks again for taking a look… much appreciated.

The folks at Stackoverflow advised that I should get rid of these lines from your "viewDidLoad" function: int hours, minutes, seconds; int secondsLeft; Those two lines are what's generating the "local declaration hides instance variable" errors and use "self." in front of any properties being referenced. This got rid of all warnings. I guess it’s time to upgrade my account to see if this countdown timer plugin actually works!

… that’s what I need to do right? I guess I can’t just use the blank screen plugin and expect the code to do what it’s supposed to, right? Thanks :-)

http://stackoverflow.com/questions/13209305/local-declaration-hides-instance-variable-unused-variables-warnings?answertab=active#tab-top Here’s the stack overflow thread for anyone who’s interested.

I've never used the blank screen plugin. But I think to do what you want to, you'd have to use the plugin creator tool to create a custom class for your new timer screen to "work" within. And for that, I think you do need to upgrade. If you haven't watched David's "Lets make a plugin" video yet, I'd suggest watching that to see how that all works.

@Stobe - thanks a lot for your help!