Keeping and Saving New Rating at Ratingview Startup - iphone

Question

This is on a sidenote to my previous question about ratingview
I have this code:
[starView displayRating:1.5];
...however, I want it to be changed according to this:
-(void)ratingChanged:(float)newRating {
ratingLabel.text = [NSString stringWithFormat:#"Rating is: %1.1f", newRating];
//....
How can I make it displayRating: newString...
Can anyone show me how to do this please?
Update
Update
i have this code in place from what ive seen from your instructions (without the labels those are irrevelant)
-(void)viewDidLoad {
NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
NSLog(#"Initializing rating view");
[starView setImagesDeselected:#"0.png" partlySelected:#"1.png" fullSelected:#"2.png" andDelegate:self];
[starView displayRating:[[defaults floatForKey:#"Rating"] stringValue]]; }
however i am getting an error message incompatible type for argument 1 of display rating and cannot convert to pointer type errors while building...

Answer 1

If you want to save a simple one value rating between application launches you should use NSUserDefaults like this:
NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
// Save
[defaults setFloat:newRating forKey:#"Rating"];
// Read
float *savedRating=[defaults floatForKey:#"Rating"];
Update:
im sorry im a 16 year old and i have
no idea how to implement this into my
code. ive never used the nsuserdefault
class before i have this code how
would i do it.
-(void)viewDidLoad {
[super viewDidLoad]
theLabel.text = myLabel
theLabel2.text =myLabel2
NSLog(#"Initializing rating view")
[starView setImagesDeselected:#"0.png" partlySelected:#"1.png" fullSelected:#"2.png" andDelegate:self]
[starView displayRating:savedRating]
}
Well, to start, you would most likely want to put this code in viewDidAppear instead so that it is called every time the view appears. viewDidLoad is only called the first time the view controller loads from the nib file.
Suppose you wanted to set the text of theLabel to the value of the saved rating. It would look like this:
-(void)viewDidLoad {
[super viewDidLoad]
NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
theLabel.text = [[defaults floatForKey:#"Rating"] stringValue];
theLabel2.text =myLabel2
NSLog(#"Initializing rating view")
[starView setImagesDeselected:#"0.png" partlySelected:#"1.png" fullSelected:#"2.png" andDelegate:self]
[starView displayRating:savedRating]
}