我无法使用 size(650,400) 设置 contentsize。但即使我创建具有相同宽度和高度的 popoverController，它也会被创建。
不知道什么是担忧？ 点击 Enter 后显示如下
- (IBAction)setButtonTapped:(id)sender
{
popover *mpopover = [[popover alloc] init];
UINavigationController *NavController = [[UINavigationController alloc] initWithRootViewController:mpopover];
//NavController.navigationBar.backgroundColor = [UIColor darkGrayColor];
mPickerPopover = [[[UIPopoverController alloc] initWithContentViewController:NavController] retain];
CGSize popoversize = CGSizeMake(400, 90);
[mpopover setparent:mPickerPopover];
[mpopover setToolBarFrame:popoversize];
mPickerPopover.popoverContentSize = popoversize;
[mPickerPopover presentPopoverFromRect:CGRectMake([sender frame].origin.x, [sender frame].origin.y, 20, 20) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
[mpopover release];
}
On tapping show button looks like this
-(void)buttonView:(id)sender
{
CGSize popoversize = CGSizeMake(650, 320);
[parent setPopoverContentSize:popoversize animated:YES];
[toolbar setFrame:CGRectMake(0, popoversize.height- 90, popoversize.width, 60)];
CATransition *transition = [CATransition animation];
transition.type = kCATransitionPush;
transition.duration = 1.0f;
transition.timingFunction = UIViewAnimationCurveEaseInOut;
[self.view.layer addAnimation:transition forKey:@"transitionViewAnimation"];
}
目前还不清楚您要问什么，但对于弹出窗口，您需要确保在显示弹出窗口之前在内容视图控制器上设置 popoverContentSize 。通常我在视图控制器的 viewDidLoad 方法中执行此操作，该方法将在弹出窗口中使用。