CODEWITHSUNDEEP
iphoneiosobjective-cxcode
Gajendrasinh Chauhan
Gajendrasinh Chauhan

Reputation: 3397

-[__NSArrayM insertObject:atIndex:]: object cannot be nil

I am getting error object cannot be nil. I am using web service, when I parse it using loop it crashed and send output -[__NSArrayM insertObject:atIndex:]: object cannot be nil as error, because I have null value on blank value in NSMutableArray which I am trying to parse.

I tried to fix with these methods:

(1) if([Array containsObject:[NSNull null]])  
(2) if([Array objectAtIndex:0  
(3) if([Array objectAtIndex:counter] == 0**

My code is,

if([[[node childAtIndex:counter] name] isEqualToString:@"Phone"]){

    if([phoneno containsObject:[NSNull null]]){
        phone.text = @"-";
    }
    else{
        NSString *str = [[node childAtIndex:counter] stringValue];
        [phoneno addObject:str];
        NSString *myString = [phoneno componentsJoinedByString:@","];
        [phone setText:myString];
        phone.text = [NSString stringWithFormat:@"%@",myString];
    }
}

Here, phoneno is NSMutableArray

Upvotes: 7

Views: 31667

Answers (5)

Master Stroke
Master Stroke

Reputation: 5128

Make sure you have initialized your array called phoneno before adding any object into it...

NSMutableArray *phoneno=[[NSMutableArray alloc]init];

and stop adding any nil object into it...

if(str) //or if(str != nil) or if(str.length>0)
  {
    //add the str into phoneno array.
  }
else
  {
     //add the @""
  }

Upvotes: 14

Nirmalsinh Rathod
Nirmalsinh Rathod

Reputation: 5186

There is some case in that you are inserting nil in your array, so when you try to get that value it will crash the application. So please check the value before inserting it into the array. For example, if the value is nil then you could insert blank string into the array instead.

if (str == nil || [str isKindOfClass:[NSNull null]])
{
    [array addObject:@""];
}
else
{
    [array addObject:str];
}

Upvotes: 2

tania_S
tania_S

Reputation: 1370

NSString *str = [[node childAtIndex:counter] stringValue];
if(str.length>0)
{
   [phoneno addObject:str];
}

Upvotes: 0

thatzprem
thatzprem

Reputation: 4767

You this utility method to validate the nil//Nil/Null/NULL checks:

-(BOOL)isObjectEmpty:(id)object
{
    return object == nil || ([object respondsToSelector:@selector(length)] && [(NSData *)object length] == 0) || ([object respondsToSelector:@selector(count)] && [(NSArray *)object count] == 0);
}

Upvotes: 0

Alex Terente
Alex Terente

Reputation: 12036

You can not insert nil in to an NSArray or a NSDictionary so you have to add a test.

if(str){
   [phoneno addObject:str];
}

Upvotes: 5

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