How to save checkbox value check/uncheck to NSUserDefault

Question

I have checkbox Remember Password (for login form). and I want when I check remember it save and form run it show checkbox check. if i uncheck it run and show checkbox uncheck. please share me. thank in advance

score 7 · Answer 1 · answered Sep 19 '12 at 10:09

7

Bind the checkbox value binding to some key on the shared user defaults controller:

enter image description here

(You didn't specifically say whether this is iOS or Mac, but because there's no standard checkbox control in iOS, I assumed the latter.)

answered Sep 19 '12 at 10:09

FluffulousChimp

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then this is a perfect use case for Cocoa bindings. – FluffulousChimp Sep 19 '12 at 10:32
How do you read that on the code? – Idan Mar 30 '13 at 23:31
@Idan: for example like this (in Swift): `NSUserDefaultsController.sharedUserDefaultsController().valueForKeyPath("values.shouldRunCI")` – disco crazy Jun 22 '15 at 20:41

Paresh Navadiya · Answer 2 · 2013-10-01T13:30:51.147

Use -setBool:forKey: method for NSUserDefaults.

if(checked)
    [[NSUserDefaults standardUserDefaults] setBool:true forKey:@"RememberMe"];
else
    [[NSUserDefaults standardUserDefaults] setBool:false forKey:@"RememberMe"];

and then you'll be able to get an actual BOOL value returned like this:

BOOL checked = [[NSUserDefaults standardUserDefaults] boolForKey:@"RememberMe"];

EDIT : Don't forgot to add synchronize as this call NSUserDefaults to save data immediately

[[NSUserDefaults standardUserDefaults] synchronize];

score 1 · Answer 3 · answered Mar 30 '13 at 23:55

On .h file:

@property (nonatomic, unsafe_unretained) IBOutlet NSButton *isCheckedButton;

On .m file

@synthesize isCheckedButton;

- (IBAction)changeButtonState:(id)sender{
if ([isCheckedButton state]) { // Check if button is checked
    [[NSUserDefaults standardUserDefaults] setBool:TRUE forKey:@"YOUR KEY HERE"];
    NSLog(@"Change state to On");
}else{
    [[NSUserDefaults standardUserDefaults] setBool:FALSE forKey:@"YOUR KEY HERE"];
     NSLog(@"Change state to Off");
}
 [[NSUserDefaults standardUserDefaults] synchronize]; // ** DON'T FORGET THIS LINE! ** //
}

Above code could be simpler but this is how I think it's better understood. You can always read the value with:

[[NSUserDefaults standardUserDefaults] boolForKey:@"YOUR KEY HERE"];

score 0 · Answer 4 · answered Sep 19 '12 at 11:48

you try this:

- (void)checkboxButton:(id)sender
 {

 if ( checkboxSelected == 1){

[ checkbox setSelected:NO];
[checkbox setImage:[UIImage imageNamed:@"checkbox.png"] forState:UIControlStateNormal];

checkboxSelected = 0;
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
[prefs setInteger: checkboxSelected forKey:@"checkboxstate"];

 } else {
[checkbox setSelected:YES];
[checkbox setImage:[UIImage imageNamed:@"checkbox-checked.png"] forState:UIControlStateNormal];
 checkboxSelected = 1;
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
[prefs setInteger: checkboxSelected forKey:@"checkboxstate"];

}



}

yeah, I develop on Mac application but your code guide me the idea. thank you. — user1628083, Sep 19 '12 at 13:39

How to save checkbox value check/uncheck to NSUserDefault

4 Answers4