我想从UICollectionViewCell上的按钮呈现UIPopoverController.
到目前为止,一切都已创建好,但弹出窗口不可见.
这有什么特别的方法吗？
如果我从集合视图单元格以外的任何其他位置显示代码,则代码可以工作.
以下代码位于UICollectionViewCell子类中.
if (_infoPopover == nil) {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
GameInfoViewController *gameInfoVC = (GameInfoViewController *)[storyboard instantiateViewControllerWithIdentifier:@"GameInfoViewController_ID"];
UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:gameInfoVC];
_infoPopover = popover;
[gameInfoVC setGameNameString:_gameNameLabel.attributedText];
}
[_infoPopover presentPopoverFromRect:_infoButton.frame inView:self permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
谢谢！
解决方法
从UIViewController执行PopOver,而不是在UICollectionViewCell中执行.所以,使用委托来控制.
//Cell.m
-(void)popOVerClick:(UIButton *)button{
[[self delegate] didPopOverClickInCell:self];
}
实施协议
//ViewController
-(void)didPopOverClickInCell:(MyCell *)cell{
if ([self.flipsidePopoverController isPopoverVisible]) {
[self.flipsidePopoverController dismissPopoverAnimated:YES];
} else {
FlipsideViewController *controller = [[FlipsideViewController alloc] initWithNibName:@"FlipsideViewController" bundle:nil];
controller.label.text = cell.title;
controller.delegate = self;
self.flipsidePopoverController = [[UIPopoverController alloc] initWithContentViewController:controller];
[self.flipsidePopoverController presentPopoverFromRect:cell.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}
}
