如何使用目标C将特定值删除到NSMutableArray中？

Question

I am facing some empty values adding into NSMutableArray issue. I need to remove that one before loading on tableview because Its adding empty row on table.

Into my array (like: "") this type of empty quotes adding. Please help me.

Answer 1

you can write a category on NSMutableArray , and validate the string while adding it to array

your implementation should look like this,

#import "NSMutableArray+Validation.h"

@implementation NSMutableArray (Validation)

- (void)addObjectIfItsValidString:(id)anObject
{
    if (anObject && [anObject isKindOfClass:[NSString class]] && ((NSString *)anObject).length > 0) {
        [self addObject:anObject];
    }
}
@end

Answer 2

NSMutableArray已经具有内置的removeObjectIdenticalTo方法，该方法删除所有出现的特定对象，因此您可以执行以下操作：

[array removeObjectIdenticalTo:@""]

Answer 3

Try this

[anArray removeObjectAtIndex: index];
[anArray removeObject: item];
[anArray removeLastObject];

Hope it helps.

Answer 4

Try this it might help you.

for (int i=0;i<array.count;i++) {
        NSString *string = array[i];
        if(string.length==0||[string isEqualToString:@""]){
            [array removeObjectAtIndex:i];
        }
    }

Answer 5

 int index = [arr indexOfObject:@""];
 [arr removeObjectAtIndex:index];

Answer 6

Try this:

NSMutableSet* set = [NSMutableSet setWithArray:array];
[set removeObject:@""];
NSArray *result =[set allObjects];
NSLog(@"%@",result);

and If you have array of dictionary so you can try this:

NSArray* keysToGo = [myDictionary allKeysForObject: @""];
[myDictionary removeObjectsForKeys: keysToGo];