首先我想说我对ipad/ipod/iphone开发非常陌生,对于objective-c也是如此。这就是说,我试图开发一个针对iPad的小应用程序,使用Xcode和IB,基本上,我有一个表,为表中的每个UITableViewCell添加一个按钮,该按钮包含一个包含一个图像。如何从UITableViewCell.accessoryView调用PopOver控制器?
下面是代码:
UIImage *img = [UIImage imageNamed:@"myimage.png"];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
CGRect frame = CGRectMake(0.0, 0.0, img.size.width, img.size.height);
button.frame = frame; // match the button's size with the image size
[button setBackgroundImage:img forState:UIControlStateNormal];
// set the button's target to this table view controller so we can interpret touch events and map that to a NSIndexSet
[button addTarget:self action:@selector(checkButtonTapped:event:) forControlEvents:UIControlEventTouchUpInside];
button.backgroundColor = [UIColor clearColor];
cell.accessoryView = button;
到目前为止,一切都很好,现在的问题是,我想,当用户点击一个细胞的accessoryView的按钮一酥料饼的控制出现。
我想这对中的tableView的“accessoryButtonTappedForRowWithIndexPath”:
UITableViewCell *cell = [myTable cellForRowAtIndexPath:indexPath];
UIButton *button = (UIButton *)cell.accessoryView;
//customViewController is the controller of the view that I want to be displayed by the PopOver controller
customViewController = [[CustomViewController alloc]init];
popOverController = [[UIPopoverController alloc]
initWithContentViewController: customViewController];
popOverController.popoverContentSize = CGSizeMake(147, 122);
CGRect rect = button.frame;
[popOverController presentPopoverFromRect:rect inView:cell.accessoryView
permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
这段代码的问题是,它显示了酥料饼在应用程序中查看的顶部,在调试时,我看到的值“矩形”,他们分别是:
x = 267
y = 13
所以我认为这是很明显的原因正在显示酥料饼这么涨的看法,所以我的问题是,我怎么能得到正确的价值观为酥料饼刚刚出现低于ce的附件视图上的按钮二?另外,正如你所看到的,我告诉它使用“cell.accessoryView”作为“inView:”属性,这样好吗?
千恩万谢,说完全成功了! – Vic 2010-05-13 14:17:08