I want to create a chatLog ,but I don't know how to do it - objective-c

Question

Now I have a textview ,and I receive content message , I will do
NSString *speakText=[[NSString alloc]initWithFormat:#"%#\n%#\n%#",fromWho,content,_cheatView.text];
to show it .
But now I want to create a array to save all message ,
In a array like sample
> [0] (first message 3pair key/value)
>[0]
>[1]
>[2]
>[1] (second message 3pair key/value)
>[2]
>[x]
>[y]
I tried use
- (void)webSocket:(SRWebSocket *)webSocket didReceiveMessage: (id)message;
{
NSString *toMessageJson = [[NSString alloc]initWithString:message];
[toMessageJson dataUsingEncoding:NSUTF8StringEncoding];
NSData *toMessageData =[toMessageJson dataUsingEncoding:NSUTF8StringEncoding];
NSError *error = nil;
NSDictionary *messageDic = [NSJSONSerialization JSONObjectWithData:toMessageData options:NSJSONReadingAllowFragments error:&error];
NSMutableArray *logDic =[NSMutableArray alloc];
[messageDic enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL * stop) {
if ([key isEqualToString:#"content"]) {
[logDic addObject:messageDic];
}
}];
But the logArray always only have 1 Object .

Answer 1

I think that logDic is confusing. At first I thought logDic is a dictionary, proper naming should also take place.
Main issue I can see is that you are always creating logDic every time you receive a message.
So if you make logDic as a property or an iVar.
example:
//WhatEverClassname
#interface WhatEverClassname(){
NSMutableArray *logDic;
}
#end
#implementation WhatEverClassname
-(id)init{
if(!(self = [super init])){
return nil;
}
logDic = [NSMutableArray new];
return self;
}
#end
then in your didReceived method you don't need to initialise it anymore.
This enumeration isn't actually needed.
[message enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL * stop) ]
it should be like:
if(message[#"content"] != nil)
[logDic addObject:message[#"content"]]; // no point in looping if you are only expecting a specific key.