NSUserDefaults Save, Get, Clear...

NSUserDefaults Save, Get, Clear...

// to store in user defaults

NSUserDefaults *StoringKeys = [NSUserDefaults standardUserDefaults];

[StoringKeys setValue: whatever you want to store forKey:@"key1"];

[StoringKeys setValue:whatever you want to store forKey:@"key2"];

[StoringKeys setValue:whatever you want to store forKey:@"key3"];        

[StoringKeys synchronize];

// to get wherever you want those keys

NSUserDefaults * StoringKeys = [NSUserDefaults standardUserDefaults];

NSString * key1 = [StoringKeys valueForKey:@"key1"];

NSString * key1 = [StoringKeys valueForKey:@"key2"];

NSString * key1 = [StoringKeys valueForKey:@"key3"];

DLog(@"key1: ======>  %@", key1);

// To clear or reset all the userDefaults

NSString *appDomain = [[NSBundle mainBundle] bundleIdentifier];

[[NSUserDefaults standardUserDefaults] removePersistentDomainForName:appDomain];

// To clear specific key value in userDefaults

[[NSUserDefaults standardUserDefaults] removeObjectForKey:@"MyKey"];

[[NSUserDefaults standardUserDefaults] synchronize];

UserDefaults in CheckBox

UserDefaults in CheckBox...

-(void)viewWillAppear:(BOOL)animated{

    [super viewWillAppear:YES];

    

    NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];

    NSString *emailStr = [defaults objectForKey:@"email_key"];

    NSString *passwordStr = [defaults objectForKey:@"password_key"];

    BOOL checkNeeded = [defaults objectForKey:@"checkboxSelected_Key"];

    if (checkNeeded) {

        self.checkboxSelected  = YES;

        [self.checkboxButton setImage:[UIImage imageNamed:@"CheckboxIcon"] forState:UIControlStateNormal];

        if (emailStr.length != 0) {

            self.email.text = emailStr;

        }

        else{

            self.email.text = @"";

        }

        if (passwordStr.length != 0) {

            self.password.text = passwordStr;

        }

        else{

            self.password.text = @"";

        }

    }

    else{

        self.checkboxSelected = NO;

        [self.checkboxButton setImage:[UIImage imageNamed:@"UnCheckboxIcon"] forState:UIControlStateNormal];

    }

}

- (IBAction)checkboxTapped:(id)sender {

    

    if (self.checkboxSelected == NO){

        self.checkboxSelected  = YES;

        [self.checkboxButton setImage:[UIImage imageNamed:@"CheckboxIcon"] forState:UIControlStateNormal];

        NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];

        NSString *emailStr = [defaults objectForKey:@"email_key"];

        NSString *passwordStr = [defaults objectForKey:@"password_key"];

        

        if (emailStr.length != 0) {

            self.email.text = emailStr;

        }

        

        if (passwordStr.length != 0) {

            self.password.text = passwordStr;

        }

        }

        else {

        self.checkboxSelected = NO;

        [self.checkboxButton setImage:[UIImage imageNamed:@"UnCheckboxIcon"] forState:UIControlStateNormal];

        self.email.text = @"";

        self.password.text = @"";

    }

}