iOS Saving Integers

[Wellington2k]

Hello. I'm trying to make it where every time you open the app it adds 1 to an integer. I need the integer to save it's value to a plist or a txt or what ever is the best. I've learn a lot more about objective-C than the last time I wrote, but I'd still like to know what file to put it in.
Thanks.

 

[xcodeNewbie]

Save integers.

The easiest way to save small data, like an integer, is with NSUserDefaults.

 [[NSUserDefaults standardUserDefaults] setInteger:myInt forKey:@"myKey"];
[[NSUserDefaults standardUserDefaults] synchronize];

The "forKey" part gives you a method for looking up this number later, similar to an NSDictionary. The "synchronize" part saves it to memory. When you want to recall your integer, do this:

 int myInt = [[NSUserDefaults standardUserDefaults] integerForKey:@"myKey"];

Hope this helps!

 

[Wellington2k]

I get three errors.

#import "SaveTestViewController.h"

@implementation SaveTestViewController

int number = 5;


[[NSUserDefaults standardUserDefaults] setInteger:number forKey:@"myKey"];

// This has the error "Expected identifier or '(' before '[' token"

[[NSUserDefaults standardUserDefaults] synchronize];

// This has the error "Expected identifier or '(' before '[' token"

int myInt = [[NSUserDefaults standardUserDefaults] integerForKey:@"myKey"];

// This has the error "Initialize element is not constant"

 

[jiminaus]

I get three errors.

#import "SaveTestViewController.h"

@implementation SaveTestViewController

int number = 5;


[[NSUserDefaults standardUserDefaults] setInteger:number forKey:@"myKey"];

// This has the error "Expected identifier or '(' before '[' token"

[[NSUserDefaults standardUserDefaults] synchronize];

// This has the error "Expected identifier or '(' before '[' token"

int myInt = [[NSUserDefaults standardUserDefaults] integerForKey:@"myKey"];

// This has the error "Initialize element is not constant"

That code needs to go inside a method (or two).

 

[ArtOfWarfare]

That code needs to go inside a method (or two).

haha, I couldn't figure it out.

Yeah, you probably want to stick this all in the - viewDidLoad method

 

[Wellington2k]

Whoops. Yeah it works now.
Thanks!

 

[timbojill]

Whoops. Yeah it works now.
Thanks!

Can you please post the code or e-mail it to timbojill@gmail.com. I an working on a app that needs to save a high score.

 

[Wellington2k]

Alright. Here ya go! I'll give you an example project. View attachment SaveTest.zip
If you use it in your game don't forget to give credit!

By the way how do you save multiple integers?
Like one is for the best score and one is for the worst.

 

[jnoxx]

You're asking credit for something someone else on this forum wrote for you? kinda bad.
But, to save multiples, just add another integer to another key called "worstScore" and "HighestScore", don't see the issue here..
It's a dictionary, if you don't know what it is, back to the documentation with you.
So you can save keys, and assign values to it.

 

[Wellington2k]

I meant to say give credit to the person how showed how to save and the score adding, subtracting, and reseting code to me. Sorry I wasn't specific enough.

Never mind I got it. I had to add one to the loaded integer instead of the variable itself.

Thank you all!