Question

I have a .plist file that is loaded into my Xcode project. I have successfully put it in the documents directory of my iPhone while testing it. When I dump the contents into an NSMutableDictionary, and try to enumerate it, I get EXC_BAD_ACCESS crashes. They keys all have BOOLs associated as their values. What am I doing wrong?

My code now:

for (id key in achDict) {

    NSLog(@"Achievement:%@ done:%@", key, [[achDict objectForKey:key] boolValue]);

}

This always returns EXC_BAD_ACCESS in a crash.

Answer 1

Your NSLog is expecting two objects but you are passing it a string ‘key’ and an Integer. A Bool Value is not an Object, it returns an Integer value (0 for False and 1 for True). %@ is for Objective C Objects. Instead use %d to get Integer Values such as C Booleans.

Change your NSLog statement to:

NSLog(@"Achievement:%@ done:%d", key, [[achDict objectForKey:key] boolValue]);

Apple’s String Programming Guide has a useful section on String Modifiers