#import@interface NSDictionary (VASafeObjectForKey)
-(id)safeObjectForKey:(NSString*) key;
-(NSMutableDictionary *)mutableDeepCopy;
@end
#import "NSDictionary+VASafeObjectForKey.h"
@implementation NSDictionary (VASafeObjectForKey)
-(id)safeObjectForKey:(NSString*) key
{
id object = [self objectForKey:key];
if ([object isKindOfClass:[NSNull class]]) {
object = nil;
}
return object;
}
-(NSMutableDictionary *)mutableDeepCopy{
NSMutableDictionary *copyDict = [[NSMutableDictionary alloc]initWithCapacity:self.count];
for (id key in self.allKeys) {
id oneCopy = nil;
id oneValue = [self valueForKey:key];
if ([oneValue respondsToSelector:@selector(mutableDeepCopy)]) {
oneCopy = [oneValue mutableDeepCopy];
// }else if ([object respondsToSelector:@selector(mutableCopy)]){
// oneCopy = [object mutableCopy];
}else if ([oneValue respondsToSelector:@selector(copy)]){
oneCopy = [oneValue copy];
}
[copyDict setValue:oneCopy forKey:key];
}
return copyDict;
}
@end
