Boolean inside property list (Simple!)

Question

I'm writing a small application right now and I got problems while reading out a property list...

My exact question is: How can I read out a boolean from the property list? Or better how can I read out this boolean from a NSDictionary?

Thanks, mavrick3.

Answer 1

The objects are stored as NSNumber objects, so to retrieve the BOOL you should use this method:

BOOL myBool = [someNSNumberObject boolValue];

To retrieve from a dictionary do something like this:

BOOl myBool = [[someDictionary objectForKey:@"someKey"] boolValue];

Documentation here: http://developer.apple.com/library/ios/documentation/Cocoa/Reference/Foundation/Classes/NSNumber_Class/Reference/Reference.html#//apple_ref/occ/instm/NSNumber/boolValue

Answer 2

Try storing the BOOL as a NSNumber ... then adding that to the Dictionary.

A simple example :

   BOOL answered = YES;
    NSNumber *answeredAsNumber = [NSNumber numberWithBool:answered];
    [dict setObject:answeredAsNumber forKey:@"isAnswered"];

    BOOL retrievedAnswered = [[dict objectForKey:@"isAnswered"] boolValue];