UItableview剖面上长抽头的访问错误

Question

下面是我的code.Which，用于在表的部分显示内容，然后单击

    -(UIView*)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
    NSArray *arr=[[NSBundle mainBundle] loadNibNamed:@"CustomCell" owner:self options:nil];
    CustomCell *cellHeader=[arr objectAtIndex:0];
   UIButton *button = [[UIButton alloc] initWithFrame: CGRectMake(0.0, 0.0, 320.0, 80.0)];
    button.alpha = 0.7;
    button.tag=section;
    /* Prepare target-action */
    [button addTarget: self action: @selector(handleTap:) forControlEvents: UIControlEventTouchUpInside];
    [cellHeader.contentView addSubview: button];
    objISLMenu= [self.dataArray objectAtIndex:section];
    NSString *titleStr= objISLMenu.displayName;
    cellHeader.titleLabel.text=titleStr;
    if(section ==selectedSection){
        //bg as red
        [cellHeader.contentView setBackgroundColor:[UIColor redColor]];
        //text as white
        [cellHeader.titleLabel setTextColor:[UIColor greenColor]];
    }
    else{
        //bg as white
        [cellHeader.contentView setBackgroundColor:[UIColor redColor]];
        //text as white
        [cellHeader.titleLabel setTextColor:[UIColor greenColor]];
    }
    return cellHeader.contentView;
    }

-(void)handleTap:(UIButton*)sender
{
NSLog(@"%ld",(long)sender.tag);
if(selectedSection==sender.tag){
    //clicked is same as expanded
    selectedSection=-1;
    [self.tableview reloadSections:[NSIndexSet indexSetWithIndex:sender.tag] withRowAnimation:UITableViewRowAnimationNone];
}
else{
    NSLog(@"%ld",(long)sender.tag);
    long removesectionid=selectedSection;
    selectedSection=sender.tag;
    [self.tableview reloadSections:[NSIndexSet indexSetWithIndex:sender.tag] withRowAnimation:UITableViewRowAnimationNone];
    if(removesectionid!=-1){
        [self.tableview reloadSections:[NSIndexSet indexSetWithIndex:removesectionid]  withRowAnimation:UITableViewRowAnimationNone];
    }
    if([tableview numberOfRowsInSection:sender.tag] ==0 )
    {
         [self updateViewControllerWithIndex:sender.tag];
    }
}

}

我使用这段代码来显示数据，重新加载部分的数据，按钮上的数据，click.Long按下部分，给了我一个糟糕的访问错误。

Answer 1

而不是在内容视图上添加子视图