passing a variable declared in one class to another class

Question

I was trying to set a number in a textfield in one view, that is controlled by one class and make this number appear in a label that is in another view controlled by other class, how do i do it??

Are you using MVC design? Do you have a model that is separated from the view/controller? — mkral, Jul 16 '12 at 16:12
Read a recent question http://stackoverflow.com/a/11508245/468724 — Inder Kumar Rathore, Jul 16 '12 at 16:16
[Another question](http://stackoverflow.com/a/8383785/468724). There are many question related to this.Try to search.Though they are not exactly what you want but they are similar to your problem. — Inder Kumar Rathore, Jul 16 '12 at 16:20

score 1 · Accepted Answer · edited Jul 16 '12 at 17:03

Very simple way is NSUserDefault. I don't recommend this but this a way to get data

Saving

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];

// saving an NSString

[prefs setObject:@"TextToSave" forKey:@"keyToLookupString"];

// saving an NSInteger

[prefs setInteger:42 forKey:@"integerKey"];

// saving a Double

[prefs setDouble:3.1415 forKey:@"doubleKey"];

// saving a Float

[prefs setFloat:1.2345678 forKey:@"floatKey"];

// This is suggested to synch prefs, but is not needed (I didn't put it in my tut)
[prefs synchronize];

Retrieving

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];

// getting an NSString

NSString *myString = [prefs stringForKey:@"keyToLookupString"];

// getting an NSInteger

NSInteger myInt = [prefs integerForKey:@"integerKey"];

// getting an Float

float myFloat = [prefs floatForKey:@"floatKey"];

I was nearly done typing the exact same answer. I prefaced it with "not necessarily the best, but it works" — mistahenry, Jul 16 '12 at 16:27
@sunrize920, LOL. That is why i wrote I don't recommend this. But its a way to solve the problem Gabriel Molter having. — AAV, Jul 16 '12 at 16:30

score 0 · Answer 2 · edited May 23 '17 at 11:48

0

multiple repost like :

How can I pass a parameter into a view in iOS?

iphone Pass String to another .m file in project

you can also looks segue and protocol delegate

edited May 23 '17 at 11:48

Community

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answered Jul 16 '12 at 16:17

Damien Locque

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passing a variable declared in one class to another class

2 Answers2