广告横幅阻止UITableView的底部

我想通了,如何做到这一点的通常UITableViewController不使用自定义UIViewController与UITableView内部.诀窍是动态调整横幅视图的位置,使其始终位于可见区域的底部.

您只需将横幅视图添加为子视图并相应地调整表格插图:

- (void)viewDidLoad 
{
        [super viewDidLoad];

        ...

        //init banner and set it's frame (here we use 320x50 banner) 
        self.bannerView = [[UIView alloc] init];
        self.bannerView.frame = CGRectMake(0, self.view.frame.size.height - 50, 320, 50);

        //add as subview
        [self.view addSubview:self.bannerView];

        //set proper bottom inset depending on your banner height
        self.tableView.contentInset = UIEdgeInsetsMake(0, 0, 50, 0);
}

滚动表格时,您需要根据内容偏移量调整横幅位置:

- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    //refresh banner frame during the scrolling
    CGRect bannerFrame = self.bannerView.frame;
    bannerFrame.origin.y = self.view.frame.size.height - 50 + self.tableView.contentOffset.y;
    self.bannerView.frame = bannerFrame;
}