如果Objective C中的value为NULL，则删除数组中的行

Question

如何从目标c中的Nsarray中删除空值或Null值

这里是我的示例代码：

cell.subtitleLbl.text = [[chapterArray objectAtIndex:indexPath.row] valueForKey:@"person"];

Answer 1

<强>选择-1

// mainArray array is your current array
NSMutableArray *tempArray = [[NSMutableArray alloc]init];
for (int i = 0; i < [mainArray count]; i++) {
    id obj = [mainArray objectAtIndex:i];
    if (![obj  isKindOfClass:[NSNull class]]) { // or if (![obj  isKindOfClass:[[NSNull null]class]]) {
        [tempArray addObject:obj];
    }
}

NSLog(@"%@",tempArray);

<强>选择-2

[yourarrayName removeObjectIdenticalTo:[NSNull null]];

<强>选择-3

ussing Predicate

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT (SELF CONTAINS %@)", @"<null>"];
[yourarrayname filterUsingPredicate:predicate];

<强>选择-4

如果你使用字典数组

NSMutableArray *newarray=[NSMutableArray array];
for (NSDictionary *dictionary in presentArrray)
{
    if (dictionary[key] != [NSNull null]) {
        [newarray addObject:dictionary];
    }
}

Answer 2

使用可以使用可变阵列

从中删除空对象

[arrayName removeObjectIdenticalTo:[NSNull null]];