Saving Array to Plist file that contains Custom Objects iPhone

Question

I have a class called XYZ inheriting from NSObject and an array which contains objects of XYZ. I need to write this array to a plist file on to documents directory. After trying

Answer 1

After implementing encodeWithCoder: and initWithCoder: for the custom class here is how to write and read:

Write:

NSError  *error;
NSData* archiveData = [NSKeyedArchiver archivedDataWithRootObject:yourClassInstance];
[archiveData writeToFile:filePath options:NSDataWritingAtomic error:&error];

Read:

NSData *archiveData = [NSData dataWithContentsOfFile:filePath];
YourClass *yourClassInstance = (NSArray*)[NSKeyedUnarchiver unarchiveObjectWithData:archiveData];