iOS删除表单可变数组异常

Question

我想从我的数组中删除一些东西但是我得到了异常

无法识别的选择器 在删除

我的代码:

NSMutableArray* tempNewsArray = [[NSMutableArray alloc]init];
tempNewsArray = [[defaults objectForKey:@"NewsArray"]mutableCopy];
for(int i = 0;i< [tempNewsArray count]-1;i++)
{
if( (monthIntofNew - month <= 10 && monthIntofNew - month !=0) || ( monthIntofNew - month <= -2))
    {
        [tempNewsArray delete:[tempNewsArray objectAtIndex:i]];//exception occurs here.
        //deleted
    }
}

我想我遗漏了什么，请帮忙？

Answer 1

请试试这个，

int indexNum=-1;
NSMutableArray* tempNewsArray = [[NSMutableArray alloc]init];
tempNewsArray = [[defaults objectForKey:@"NewsArray"]mutableCopy];
for(int i = 0;i< [tempNewsArray count]-1;i++)
{
if( (monthIntofNew - month <= 10 && monthIntofNew - month !=0) || ( monthIntofNew - month <= -2))
    {
       indexNum=i;
        //[tempNewsArray delete:[tempNewsArray objectAtIndex:i]];//exception occurs here.
        //deleted
    }
}

if(indexNum!=-1)
{
[tempNewsArray removeObjectAtIndex:indexNum];
}

希望对您有所帮助。