How do I store the High Score?

Question

How would I store the high score. When I exit out of the app the high score goes back to 0. This is the code which will determine the high score.

if(scoring.text > best.text){
    best.text = String(score)
}

[NSUserDefaults](https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSUserDefaults_Class/)? — paulvs, Jun 18 '15 at 21:53

score 2 · Answer 1 · edited Jun 18 '15 at 22:09

2

The option I recommend you to use is NSUserDefaults. You can store an int like that:

NSUserDefaults.standardUserDefaults().setInteger(score, forKey: "HighScore")

and retrieve it like that:

NSUserDefaults.standardUserDefaults().integerForKey("HighScore")

edited Jun 18 '15 at 22:09

NobodyNada

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answered Jun 18 '15 at 21:55

AdminXVII

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He asked for Swift code as he posted Swift code so make sure to always answer using the appropriate language. – LinusGeffarth Jun 18 '15 at 21:57
@LinusG. You're right, didn't realized it... Should I delete my post or should I keep it for programmers who use Obj-C ? – AdminXVII Jun 18 '15 at 22:01
It's ok. I would suggest leaving it and adding a note that it is for Objective-C or / and adding Swift code if you can. – LinusGeffarth Jun 18 '15 at 22:02
@adminXVII You could edit it. If you don't know Swift, I could edit it for you. – NobodyNada Jun 18 '15 at 22:02
@NobodyNada I would be really grateful if you do so. – AdminXVII Jun 18 '15 at 22:06
@NobodyNada Thank you very much – AdminXVII Jun 18 '15 at 22:12

nachshon f · Accepted Answer · 2015-06-18T23:05:30.163

1

Use NSUserDefaults. See Code Below...

Save The Score

    var defaults: NSUserDefaults = NSUserDefaults.standardUserDefaults()

        defaults.setObject(self.scorelabel.text, forKey: "Score")


        defaults.synchronize()

Load The Score Back

var defaults: NSUserDefaults = NSUserDefaults.standardUserDefaults()

        if let scoreIsNotNill = defaults.objectForKey("Score") as? String {
            self.scorelabel.text = defaults.objectForKey("Score") as String


        }

edited Jun 18 '15 at 23:05

answered Jun 18 '15 at 21:55

nachshon f

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Don't use syncronize, it's badddddddd – AdminXVII Jun 18 '15 at 21:57
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May I ask why @adminXVII? – LinusGeffarth Jun 18 '15 at 21:58
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Why did you say synchronize was bad. Its not bad! – nachshon f Jun 18 '15 at 22:00
Don't think so either. @nachshonfertel – LinusGeffarth Jun 18 '15 at 22:02
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http://stackoverflow.com/a/9647965/4950659 – AdminXVII Jun 18 '15 at 22:05
Ok, but is there any *disadvantage* using `synchronize()`? – LinusGeffarth Jun 18 '15 at 22:08
1

@LinusG. Did you read the whole post he linked? "In fact, it's a performance problem if you call `synchronize` every time you set a default." – NobodyNada Jun 18 '15 at 22:11
Oh right, must have missed that. Thanks @NobodyNada – LinusGeffarth Jun 18 '15 at 22:18

score 1 · Answer 3 · answered Jun 18 '15 at 21:56

Here is how to save data:

let defaults = NSUserDefaults.standardUserDefaults()
defaults?.setObject(score, forKey: "HighScore")
defaults?.synchronize()

You can read it the following way:

let x = defaults.valueForKey("HighScore") as! Int //or String, depending on what you need

Hope that helps :)

score -1 · Answer 4 · edited Jun 19 '15 at 05:12

-1

Use NSUserDefaults to store the high score.

edited Jun 19 '15 at 05:12

Nazik

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answered Jun 18 '15 at 21:53

rounak

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How do I store the High Score?

4 Answers4