UICollectionView删除选定的单元格

Question

I would like the delete the selected cels in the UICollectionView .

@property (weak, nonatomic) IBOutlet UICollectionView *cardTable;
@property (strong, nonatomic) NSMutableArray *cardTableArry; // of Card and datamodel

you can get the paths of them using as an array

NSArray *indexPaths = [[self cardTable] indexPathsForSelectedItems];

you can't [[self cardTable] removeObjectsAtIndexes: indexPaths]; as you need a NSIndexSet .

is there a way to convert the NSArray *indexPaths to a NSIndexSet ore do i need to do somting intierly difrend to get what i wand

I would like to convert the array in a NSIndexSet

[[self cardTableArry] deleteItemsAtIndexPaths: [[self cardTable] indexPathsForSelectedItems]]; 

Answer 1

The solution:

- (void) removeCardsFromTable: (NSArray *) indexPaths {
    NSMutableArray *cards = [[NSMutableArray alloc] init];
    for (NSInteger selectedLoop = 0; selectedLoop < 3; selectedLoop++) {
        NSIndexPath *card = [indexPaths objectAtIndex: selectedLoop];
        [cards addObject: [[self cardTable] objectAtIndex: [card item]]];
    }
    for (NSInteger selectedLoop = 0; selectedLoop < 3; selectedLoop++) {
        [[self cardTable] removeObject: [cards objectAtIndex: selectedLoop]];
    }
}