Question

I am developing an application where i have created the plist, and i am adding data to it..but what is happening is that everytime the data is overwritten and the previous data is lost. I mean suppose i add one name called rocky, next time when i add rock, rocky gets overwritten with rock, but what i want is my plist should contain both rocky and rock and so on…I am adding the data in plist by user entry….

here is my code below..

-(IBAction) myplist:(id) sender//the data is saved in a plist by clicking on this button
{
NSLog(@"mylist  Clicked");    

NSMutableArray *array = [[NSMutableArray alloc] init];

[array addObject:searchLabel.text];

   // get paths from root direcory

NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);

// get documents path

NSString *documentsPath = [paths objectAtIndex:0];

// get the path to our Data/plist file

NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"Data.plist"];



// This writes the array to a plist file. If this file does not already exist, it creates a new one.

   [array writeToFile:plistPath atomically: TRUE];
}

Answer 1

I think this will serve your purpose with a slight modification to your code.

NSLog(@"mylist  Clicked");    
NSMutableArray *array = [[NSMutableArray alloc] init];


// get paths from root direcory

NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);

// get documents path

NSString *documentsPath = [paths objectAtIndex:0];

// get the path to our Data/plist file

NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"Data.plist"];


//This copies objects of plist to array if there is one
[array addObjectsFromArray:[NSArray arrayWithContentsOfFile:plistPath]];
[array addObject:searchLabel.text];
// This writes the array to a plist file. If this file does not already exist, it creates a new one.

[array writeToFile:plistPath atomically: TRUE];