xonegirlz xonegirlz - 1 year ago 110
Objective-C Question

writing NSArray back to plist

I have a plist with the following format:

enter image description here

And here's how I read it:

NSString *errorDesc = nil;
NSPropertyListFormat format;

NSString *path = [[NSBundle mainBundle] pathForResource:@"States" ofType:@"plist"];
NSData *plistXML = [[NSFileManager defaultManager] contentsAtPath:path];
NSDictionary *temp = (NSDictionary *)[NSPropertyListSerialization

self.statesData = [temp objectForKey:@"Root"];

The question is if I want to write this NSMutableArray called self.statesData back to the plist, how would I do it? I am guessing something like this wouldn't work...

NSString *path = [[NSBundle mainBundle] pathForResource:@"States" ofType:@"plist"];
[self.main.statesData writeToFile:path atomically: YES];

Answer Source

You can not write the app's bundle, you need to write to the app's Document directory.

Sample code:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:fileName];

BOOL status = [array writeToFile:filePath atomically:YES];

If you have initial dad in the app bundle on first run copy it to the Documents directory and make all further accesses to the Documents directory.

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