I want to copy a NSMUtableDictionary values into the another NSMutableDictioary. How can i do that?
Here my code is,
PersonClass.h file:
NSMutableDictionary *tempDictionary;
@property (nonatomic, retain) NSMutableDictionary *tempDictionary;
PersonClass.m
@synthesize tempDictionary;
tempDictionary = [[NSMutableDictionary alloc] init];
-(PersonClass *) initWithPerson:(NSMutableDictionary *) feedDictionary
{
// get all the values in feedDictionary.
//Now i want copy of the details from feedDictionary into the tempDictionary
tempDictionary = feedDictionary; // Doesn't copy.
}
I want to access the tempDictionary values to the person class. SO how can i copy from feedDictionary to the tempDictionary. Please help me out.
Thanks.
How about this?
tempDictionary = [[NSMutableDictionary alloc]initWithDictionary:feedDictionary];
Cheers
[feedDictionary mutableCopy];
这将复制字典中的所有条目,但除非您实施NSCopying协议,否则它不会复制自定义对象。
a very simple way to get a deep mutable copy of a dictionary is to use JSON. It also gives the chance to have a look at values in dictionaries
NSString *dictStr = [sourceMutableDict JSONRepresentation];
// NSLog(@"copied data dict: %@", dictStr);
copyMutableDict = [[dictStr JSONValue] retain];
Here is another way to save. Suppose you have copy mutable dictionary named "dictA" into new mutable dictionary named "dictB". but make sure dictB have alloc and init.
[dictB setDictionary:dictA];
Hope this helpful.
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