CODEWITHSUNDEEP
iphone
arachide
arachide

Reputation: 8066

NSKeyedUnarchiver unarchiveObjectWithFile cause crash

I try to use codes

-(bool)checIfWorksOnJailbreak;
{

    NSString *s = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"Info.plist"];

    NSLog(@"%@",s);

    if([[NSFileManager defaultManager] fileExistsAtPath:s]) {


        NSDictionary *plistDictionary =  (NSDictionary*)[NSKeyedUnarchiver unarchiveObjectWithFile:s];


        NSString *valueString = [plistDictionary objectForKey:@"SigerIdentity"];
        if([valueString isEqualToString:@"Apple OS Application Signing"])
            return true;
        else
            return false; 
    }

    return false;

}

it always cause error

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', 
reason: '*** -[NSKeyedUnarchiver initForReadingWithData:]: 
incomprehensible archive version (-1)'

at line 

NSDictionary *plistDictionary =  (NSDictionary*)[NSKeyedUnarchiver unarchiveObjectWithFile:s];

Welcome any comment

Upvotes: 1

Views: 3156

Answers (1)

Sean
Sean

Reputation: 5820

NSKeyedUnarchiver (and NSKeyedArchiver) are not for encoding and decoding plists. Instead, they are used to serialize and deserialize objects that implement the NSCoding protocol. To read your plist data into a dictionary, you instead should use:

NSDictionary *plistDictionary = [NSDictionary dictionaryWithContentsOfFile:s];

Upvotes: 3

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