Saving UILabel Text After App Quits

[ChrisYates]

Hi,

This is probably easy but bear with me as I am new to iPhone development.

I'm presuming I need to do this in an array but can't figure out the method.

Basically I want to save the text in a UILabel once a user quits out of the application. The idea is that once the user relaunches the app, I can get the text from the UI label (whatever it was before quitting) and display a different view based on what the content of the UI label is.

So in other words if the UILabel said 'One' (before quitting) then on relaunch View1 would show and if the UILabel said 'Two' (before quitting) then on relaunch View2 would show etc etc.

Thanks for any help.

[Speed]

Originally Posted by ChrisYates

Hi,

This is probably easy but bear with me as I am new to iPhone development.

I'm presuming I need to do this in an array but can't figure out the method.

Basically I want to save the text in a UILabel once a user quits out of the application. The idea is that once the user relaunches the app, I can get the text from the UI label (whatever it was before quitting) and display a different view based on what the content of the UI label is.

So in other words if the UILabel said 'One' (before quitting) then on relaunch View1 would show and if the UILabel said 'Two' (before quitting) then on relaunch View2 would show etc etc.

Thanks for any help.

Well, you are first going to want to get the text of the label into an NSString.

NSString *myString = myLabel.text;

Now, we are going to want to save that string into NSUserDefaults.

[[NSUserDefaults standardUserDefaults]setObject:myString forKey:@"myString"];

To access it on startup, we will run this code:

-(void)viewDidLoad {

	NSString *myString = [[NSUserDefaults standardUserDefaults]objectForKey:@"myString"];

}

Now, we can check if the label is equal to something.

if([myString isEqualToString:@"myEqualStringText"]) {
//Do Stuff
}

I hope that works for you. If you have any questions, just ask!

[ChrisYates]

Thanks very much, I'll give that a go and see how it works. Much appreciated.

[ChrisYates]

So frustrating!

I tried the above NSString method but couldn't get it to work so I decided to go back to the basics and get a different window to show on startup and worry about saving the string later on. For some reason I can't even get this to work, I'm not sure if I've been looking at the code too long!! I'm obviously putting this in the applicationDidFinishLaunching method. Can anyone advise my tired brain?!...thanks.

{
		if(infoCount.text == @"Test 1"){
				[window addSubview:View1];
			}
			
		else if(infoCount.text == @"Test 2");{
			        [window addSubview:View2];
			}
		}
			
    [window makeKeyAndVisible];
	return YES;
}

[Not_Appy_At_All]

Originally Posted by ChrisYates

So frustrating!

I tried the above NSString method but couldn't get it to work so I decided to go back to the basics and get a different window to show on startup and worry about saving the string later on. For some reason I can't even get this to work, I'm not sure if I've been looking at the code too long!! I'm obviously putting this in the applicationDidFinishLaunching method. Can anyone advise my tired brain?!...thanks.

{
		if(infoCount.text == @"Test 1"){
				[window addSubview:View1];
			}
			
		else if(infoCount.text == @"Test 2");{
			        [window addSubview:View2];
			}
		}
			
    [window makeKeyAndVisible];
	return YES;
}

You have to use the NSString method...it compares the two strings.


The == compares the two memory locations and not the strings...from my recollections on having the same problem as you.

[Speed]

Originally Posted by Not_Appy_At_All

You have to use the NSString method...it compares the two strings.


The == compares the two memory locations and not the strings...from my recollections on having the same problem as you.

In response to this, the method is isEqualToString:@"". Make sure to enclose this in [ ] (brackets) as that may cause your issue.

[ChrisYates]

Okay I managed to get the correct view showing on application launch using:

	NSString *myString = myText.text;
	if([myString isEqualToString:@"Test 1"]) {
		[window addSubview:View2];
	}
	else if 
		([myString isEqualToString:@"Test 2"]){
		[window addSubview:View1];
}

The text may change depending on what the user does and before quitting I want to save the string, but with the code:

[[NSUserDefaults standardUserDefaults]setObject:myString forKey:@"myString"];

It doesn't seem to save and once reopening the application it defaults back to the default view.

Is there any other way I can save the string before the application quits and then open it up again upon launch.....thanks.

[Not_Appy_At_All]

Originally Posted by ChrisYates

Okay I managed to get the correct view showing on application launch using:

	NSString *myString = myText.text;
	if([myString isEqualToString:@"Test 1"]) {
		[window addSubview:View2];
	}
	else if 
		([myString isEqualToString:@"Test 2"]){
		[window addSubview:View1];
}

The text may change depending on what the user does and before quitting I want to save the string, but with the code:

[[NSUserDefaults standardUserDefaults]setObject:myString forKey:@"myString"];

It doesn't seem to save and once reopening the application it defaults back to the default view.

Is there any other way I can save the string before the application quits and then open it up again upon launch.....thanks.

You need "synchronize" to save it...Google it. It is pretty straight forward.