Question

Can anyone please tell me how to write NSMutableArray of custom class objects to file?
below is the code which i am using to write my array “medicationsArray” to file.
medicationsArray contains the objects of below medicationData class

@interface medicationData: NSObject {
NSString *drName;
NSString *date;
NSString *description;
}
@end

NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentDir = [path objectAtIndex:0];
NSString *pathWithFileName;

NSString *pathWithFileName = [NSString stringWithFormat:@"%@/medicationsArray",documentDir];
[medicationsArray writeToFile:pathWithFileName atomically:NO];

by using this code i am not able to create a file.
can anyone help me in this, thanks in advance

Answer 1

Instead of constructing the pathWithFileName “manually” you should use the stringByAppendingPathComponent: method instead:

NSString *pathWithFileName = [documentDir stringByAppendingPathComponent:@"medicationsArray"];

This will take care of any extra slashes, etc. in the path. This might be the reason your path may be wrong. I presume that the extra declaration of pathWithFileName in your snippet is just a typo.