NSUser Defaults problem

Vladdmeir · 01-04-2010, 04:39 PM

Hi,

I'm having a problem with NSUser Defaults,
I'm doing a one-time set up of my app and I use this code to register what the NSUser Defaults thing should do:

Code:

setups = [[NSString alloc] initWithFormat:@"YES"];
		
		setup.hidden = setups;
		
		NSUserDefaults *stringDefault2 = [NSUserDefaults standardUserDefaults];
		[stringDefault2 setObject:setups forKey:@"stringKey4"];

This works OK as button vanishes dutifully, but note that there is this warning on the second line:
Passing argument 1 of "setHidden:" makes integer from pointer without a cast.

But the button still vanishes, so it works?

I then call the string back using this method which receives the same warning as above

Code:

 setup.hidden = [[NSUserDefaults standardUserDefaults] objectForKey:@"stringKey4"];

But the button does not get hidden, and I know it must be something to do with the warnings? Any help would be loved

harrytheshark · 01-04-2010, 04:57 PM

Try using

Code:

[... setBool:YES forKey@"stringKey4"];

Then to load it back up:

[... boolForKey:@"stringKey4"];

Tom

jsd · 01-04-2010, 04:57 PM

What is setup? If it's a UIKit object, then the .hidden property is a BOOL, but you are trying to assign a string to it. That's what's generating the warning. (Under the covers, BOOL is actually an int, and setups is a pointer, hence the "makes integer from pointer" language).

It's working because hidden is an integer, and a pointer is just a number (integer) of an address in memory. So you're saying setup.hidden = 1627362736 (or some other big number) which works.

If you want to store a BOOL in NSUserDefaults use setBool:forKey:

Vladdmeir · 01-04-2010, 05:02 PM

Quote:

Originally Posted by harrytheshark

Try using

Code:

[... setBool:YES forKey@"stringKey4"];

Then to load it back up:

[... boolForKey:@"stringKey4"];

Tom

I see where to put the loading code, but I'm not quite sure where in

Code:

setups = [[NSString alloc] initWithFormat:@"YES"];
		
		setup.hidden = setups;
		
		NSUserDefaults *stringDefault2 = [NSUserDefaults standardUserDefaults];
		[stringDefault2 setObject:setups forKey:@"stringKey4"];

i put

Code:

[... setBool:YES forKey@"stringKey4"];

Sorry to be a bother

harrytheshark · 01-04-2010, 05:05 PM

Completely replace:

Code:

setups = [[NSString alloc] initWithFormat:@"YES"];
		
NSUserDefaults *stringDefault2 = [NSUserDefaults standardUserDefaults];
[stringDefault2 setObject:setups forKey:@"stringKey4"];

Also, like jsd said, the hidden property is a BOOL, so "setups" should be a BOOL not an NSString.

Tom

Vladdmeir · 01-04-2010, 05:07 PM

Quote:

Originally Posted by harrytheshark

Completely replace:

Code:

setups = [[NSString alloc] initWithFormat:@"YES"];
		
NSUserDefaults *stringDefault2 = [NSUserDefaults standardUserDefaults];
[stringDefault2 setObject:setups forKey:@"stringKey4"];

Also, like jsd said, the hidden property is a BOOL, so "setups" should be a BOOL not an NSString.

Tom

So then to make it a BOOL do I just put

Code:

setups = [[BOOL alloc]initWithFormat:@"YES"];

?

Sorry for being stupid

harrytheshark · 01-04-2010, 05:10 PM

No, no.
You would just use:

Code:

BOOL setups = YES;

You should really learn the fundamentals of programming before you start on a full project.

Tom

Vladdmeir · 01-04-2010, 05:12 PM

Quote:

Originally Posted by harrytheshark

No, no.
You would just use:

Code:

BOOL setups = YES;

You should really learn the fundamentals of programming before you start on a full project.

Tom

Ahh, of course, sorry.
Usually I'm better than this but I'm just so 'out of it' today if you get my drift... xD