小编Nic*_*ran的帖子

我有以下代码创建一个UIView我分配给我UITableViewCell的selectedBackgroundView属性的代码.一切都按预期工作,但子视图的背景除外,它是透明的.

我使用相同的代码来创建我分配的自定义视图backgroundView,并且工作正常.

是什么导致该子视图透明selectedBackgroundView,我该如何避免？

- (UIView*) makeSelectedBackgroundView
{
    // dimensions only for relative layout
    CGRect containerFrame = CGRectMake(0, 0, 320, 40);

    UIView* containerView = [[UIView alloc] initWithFrame:containerFrame];
    containerView.autoresizesSubviews = YES;

    // dimensions only for relative layout
    CGRect subframe = CGRectMake(5, 5, 310, 30);
    UIView* subview = [[UIView alloc] initWithFrame:subframe];

    subview.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

    subview.backgroundColor = [UIColor redColor];
    subview.layer.cornerRadius = 5;
    subview.layer.borderWidth = 2;
    subview.layer.borderColor = [UIColor greenColor].CGColor;

    [containerView addSubview:subview];

    return …