How to write Boolean to a plist file - cocoa

Question

I'm trying to write Boolean to a plist file. My code is:
NSString *filePath = [self dataFilePath];
if (filePath)
{
if (check)
{
NSLog(#"Clear");
[item setObject:[NSNumber numberWithBool:NO] forKey:#"check"];
[item writeToFile:filePath atomically: YES];
}else{
NSLog(#"Green");
[item setObject:[NSNumber numberWithBool:YES] forKey:#"check"];
[item writeToFile:filePath atomically: YES];
}
NSLog([[NSString alloc] initWithContentsOfFile:filePath]);
}else{
NSLog(#"write file was not found");
}
My filePath is:
- (NSString *)dataFilePath
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
return [documentsDirectory stringByAppendingPathComponent:#"CheckMark.plist"];
}
I load my array with:
- (void)viewDidLoad
{
NSString *filePath = [self dataFilePath];
NSLog(#"%#", filePath);
if (![[NSFileManager defaultManager] fileExistsAtPath:filePath])
{
NSString *myPathInfo = [[NSBundle mainBundle] pathForResource:#"CheckMark" ofType:#"plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager copyItemAtPath:myPathInfo toPath:filePath error:NULL];
}
// load our data from a plist file inside our app bundle
self.dataArray = [NSMutableArray arrayWithContentsOfFile:filePath];
NSLog([[NSString alloc] initWithContentsOfFile:filePath]);
NSLog(#"%#", filePath);
NSLog(#"read dataArray");
Every thing works fine, except when I look at the plist file, nothing changes.
I'm writing the plist file to my Documents directory.
Thanks for any help you can give me.

Answer 1

Remember that you need to be using an NSMutableDictionary to be able to set values.