将UITableViewCell accessoryView与单元格底部对齐，而不是中间

Question

In the native Mail app, the To: field has a ContactAdd UIButton on the right in the accessoryView position, but it is aligned to the bottom of the cell (which you can see as the cell grows in height). Is it possible to mimic this using the accessoryView property? As far as I can tell, accessoryViews always align in the middle.

Answer 1

我发现你可以继承UITableViewCell，覆盖layoutSubviews，并在该方法中，获取accessoryView并根据需要调整其框架。

Answer 2

In my app, I found a partly-working solution with the following code:

UIImage *accessoryImage = [UIImage imageNamed:@"accessory_disclosure_bottom.png"];
UIImageView *accImageView = [[UIImageView alloc] initWithImage:accessoryImage];
[accImageView setFrame:CGRectMake(0, 10, 14, 28)];
accImageView.backgroundColor = [UIColor greenColor];
accImageView.userInteractionEnabled = YES;
cell.accessoryView = accImageView;

I got the image from http://m.tech-recipes.com/rx/UITV_accessory_disclosure.png , cut away the bottom padding and made the background transparent in my graphics program. It has the full accessor functionality when selecting the row, however the image is not colored blue when selecting, which is really annoying (it seems to ignore the background transparency altogether).