NSUserDefaults and save string with date

[iOS.Lover]

I trying to save a text with NSUserDefaults but my problem is I don't know how can store data on a specific date , I crate a custom calendar app which users can store their daily notes on it , so for example users save some text in FEB 3 then they need write something else in another date , how can I store these text on different dates ? here is my code :

/retriveData :

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSString *saving = [defaults objectForKey:@"saving"];
    saveTextToday.text = saving;


- (void) saveNotes{


        NSString *retriveData = [saveTextToday text];
        NSUserDefaults *defaul = [NSUserDefaults standardUserDefaults];
        [defaul setObject:retriveData forKey:@"saving"];

        [defaul synchronize];


}

[Duncan C]

Originally Posted by iOS.Lover

I trying to save a text with NSUserDefaults but my problem is I don't know how can store data on a specific date , I crate a custom calendar app which users can store their daily notes on it , so for example users save some text in FEB 3 then they need write something else in another date , how can I store these text on different dates ? here is my code :

/retriveData :

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSString *saving = [defaults objectForKey:@"saving"];
    saveTextToday.text = saving;


- (void) saveNotes{


        NSString *retriveData = [saveTextToday text];
        NSUserDefaults *defaul = [NSUserDefaults standardUserDefaults];
        [defaul setObject:retriveData forKey:@"saving"];

        [defaul synchronize];


}

This post is nearly identical to your previous post, where you asked about saving to a plist "on a date". You didn't explain yourself well in that post, either.

If you want to save and load notes based on the current date, you need to create code that turns today's date into a string that you could use as a key for NSUserDefaults. Here is a method like that:

- (NSString*) dateStringForDate: (NSDate *) theDate;
{
  NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
  //Create a date in form YYYY|MM|DD, e..g 2011|12|31
  formatter.dateFormat = @"y|MM|dd";
  [formatter release];
  return [formatter stringFromDate: theDate];
}

To use it, you would replace the key "saving" with a date string for the date where you want to save your notes:

/retriveData :

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSString *dateString = [self dateStringForDate: [NSDate date]];
    NSString *saving = [defaults objectForKey: dateString];
    saveTextToday.text = saving;


- (void) saveNotes{


        NSString *retriveData = [saveTextToday text];
        NSUserDefaults *defaul = [NSUserDefaults standardUserDefaults];
        NSString *dateString = [self dateStringForDate: [NSDate date]];
        [defaul setObject:retriveData forKey: dateString];

        [defaul synchronize];


}

Is that what you're trying to do?

[iOS.Lover]

I think my question is clear ! but I modify it again .

Assume my calendar app has some part , one shows date , one for storing text , and another is button which forward and backward date and time .

user needs save some note for today or tomorrow or another day , actually it's a kind of reminder . What I try to do is that create something which users can save their notes according to to the specific date ...

for example I write something for tomorrow and this text should be saved in 4 Feb or whatever date and the text should be shown in 4Feb not 5 2 6 13 Feb .

I have created a custom class which shows dates and time

myCustomClass.m:

- (NSString *) showFullDate {
    
        
    NSCalendar *calendar = [NSCalendar currentCalendar];
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
  
      
    
    //ADDING DAY
    offsetComponents = [[NSDateComponents alloc] init];
    offsetComponents.day = _dayNumber;
    
    NSDate *nextDate = [calendar dateByAddingComponents:offsetComponents toDate:[NSDate date] options:0];
    
    [dateFormatter setDateFormat:@"EEEE ، d MMMM"];
	NSString *currDay = [dateFormatter stringFromDate:nextDate];
    
    [NSString stringWithFormat:@"%@",currDay];
    
    [calendar release];
    [dateFormatter release];
    return currDay;
    
}

and then if I would move dates to forward days I use this method :

- (void)nextDay {

    [self showFullDate];
   
    _dayNumber ++;   
}

in my view controller I use this method
myLable.text = [customClass showFullDate];

so the saving date should be equal to the showFullDate .

[Duncan C]

Originally Posted by iOS.Lover

I think my question is clear ! but I modify it again .

Assume my calendar app has some part , one shows date , one for storing text , and another is button which forward and backward date and time .

user needs save some note for today or tomorrow or another day , actually it's a kind of reminder . What I try to do is that create something which users can save their notes according to to the specific date ...

for example I write something for tomorrow and this text should be saved in 4 Feb or whatever date and the text should be shown in 4Feb not 5 2 6 13 Feb .

I have created a custom class which shows dates and time

myCustomClass.m:

- (NSString *) showFullDate {
    
        
    NSCalendar *calendar = [NSCalendar currentCalendar];
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
  
      
    
    //ADDING DAY
    offsetComponents = [[NSDateComponents alloc] init];
    offsetComponents.day = _dayNumber;
    
    NSDate *nextDate = [calendar dateByAddingComponents:offsetComponents toDate:[NSDate date] options:0];
    
    [dateFormatter setDateFormat:@"EEEE ، d MMMM"];
	NSString *currDay = [dateFormatter stringFromDate:nextDate];
    
    [NSString stringWithFormat:@"%@",currDay];
    
    [calendar release];
    [dateFormatter release];
    return currDay;
    
}

and then if I would move dates to forward days I use this method :

- (void)nextDay {

    [self showFullDate];
   
    _dayNumber ++;   
}

in my view controller I use this method
myLable.text = [customClass showFullDate];

so the saving date should be equal to the showFullDate .

I posted code that would let you save your notes to a unique key in user defaults based on the date you passed in. Use that.

[iOS.Lover]

Thank you , your codes works fine but the problem is in retrieving data which I am working on it