-[__ NSArrayM insertObject:atIndex:]:对象不能为nil [英] -[__NSArrayM insertObject:atIndex:]: object cannot be nil

问题描述

我得到的错误对象不能为nil.我正在使用Web服务，当我使用循环对其进行解析时，它崩溃并发送输出-[__ NSArrayM insertObject:atIndex:]:对象不能为nil作为错误，因为我在<我正在尝试解析的code> NSMutableArray .

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.

我尝试使用以下方法进行修复:

I tried to fix with these methods:

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

我的代码是

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];
    }
}

在这里，电话号码是NSMutableArray

Here, phoneno is NSMutableArray

推荐答案

在添加任何对象之前，请确保已初始化名为phoneno的数组.

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

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

并停止向其中添加任何nil对象...

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 @""
  }

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