oc tableview多选

- (UITableViewCellEditingStyle)tableView:(UITableView*)tableView editingStyleForRowAtIndexPath:(NSIndexPath*)indexPath {
    return UITableViewCellEditingStyleDelete | UITableViewCellEditingStyleInsert;
}
 
 

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath{
    return YES;
}
 
//取消选择cell
-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{
//    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
    CommodityConfigModel *model = self.dataArray[indexPath.row];
    [self.selectArray addObject:model.commodity_id];
    self.isAllSelect = NO;
}
//选择cell
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
//    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
    CommodityConfigModel *model = self.dataArray[indexPath.row];
    [self.selectArray addObject:model.commodity_id];
}

- (void)allSelectAction {

    self.isAllSelect = 1-self.isAllSelect;
    if (_isAllSelect) {
        for (int i = 0; i < self.dataArray.count; i ++) {
            CommodityConfigModel *model = self.dataArray[i];
            NSIndexPath *indexPath = [NSIndexPath indexPathForItem:i inSection:0];
            [self.tableView selectRowAtIndexPath:indexPath animated:YES scrollPosition:UITableViewScrollPositionTop];
            [self.selectArray addObject:model.commodity_id];
        }
    }else {
        for (int i = 0; i < self.dataArray.count; i ++) {
            NSIndexPath *indexPath = [NSIndexPath indexPathForItem:i inSection:0];
            [self.tableView deselectRowAtIndexPath:indexPath animated:YES];
        }
        [self.selectArray removeAllObjects];
    }
}