iPad popover presentpopoverfrombarbuttonitem

Question

J'ai ajouté quelques boutons sur le côté droit de la barre de navigation avec les éléments suivants:

UIView* customView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 44)]; 
customView.backgroundColor = [UIColor clearColor]; 

UIButton* button = [UIButton buttonWithType:UIButtonTypeCustom]; 
button.frame = CGRectMake(0, 0, 45, 44); 
button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter; 
button.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter; 
button.backgroundColor = [UIColor clearColor]; 
[button setImage:[UIImage imageNamed:@"toc.png"] forState:UIControlStateNormal]; 
button.userInteractionEnabled = YES; 
[button addTarget:self action:@selector(tableOfContentsAction) forControlEvents:UIControlEventTouchUpInside]; 
[customView addSubview:button]; 

button = [UIButton buttonWithType:UIButtonTypeCustom]; 
button.frame = CGRectMake(50, 0, 45, 44); 
button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter; 
button.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter; 
button.backgroundColor = [UIColor clearColor]; 
[button setImage:[UIImage imageNamed:@"bookmark.png"] forState:UIControlStateNormal]; 
button.userInteractionEnabled = YES; 
[button addTarget:self action:@selector(bookmarkButtonAction) forControlEvents:UIControlEventTouchUpInside]; 
[customView addSubview:button]; 

UIBarButtonItem *segmentBarItem = [[UIBarButtonItem alloc] initWithCustomView:customView]; 

self.navigationItem.rightBarButtonItem = segmentBarItem; 
[customView release]; 
[segmentBarItem release]; 

Cela fonctionne bien. Pour les deux boutons que je montre un popover comme indiqué ci-dessous

- (void) bookmarkButtonAction 
{ 
BookmarksViewController* content = [[BookmarksViewController alloc] initWithOrientation:lastOrientation selectedPage:selectedPage]; 
UIPopoverController* aPopover = [[UIPopoverController alloc] initWithContentViewController:content]; 
CGSize size = content.view.frame.size; 
aPopover.popoverContentSize = size; 
aPopover.delegate = self; 
self.bookmarksPopoverVC = content; 
self.bookmarksPopoverVC.popUpController = aPopover; 
[content release]; 
[aPopover presentPopoverFromBarButtonItem:self.navigationItem.rightBarButtonItem permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES]; 
[aPopover release]; 
bookmarksShowing = YES; 
} 

Le problème est que j'utilise presentPopoverFromBarButtonItem: self.navigationItem.rightBarButtonItem ce qui montre la flèche du haut au milieu des deux boutons. Comment puis-je attacher la flèche à chaque bouton?

Answer 1

au lieu d'utiliser cette ligne:

aPopover presentPopoverFromBarButtonItem:self.navigationItem.rightBarButtonItem 

Vous pouvez mieux essayer cette ligne:

aPopover presentPopoverFromBarButtonItem:sender 

Je pense que cela résoudrait votre problème

Answer 2

essayez ceci:

- (IBAction)products:(id)sender { 
    UIButton* btn = (UIButton *)sender; 
    [productsPopover presentPopoverFromRect:[btn bounds] inView:btn permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES]; 
} 

Fonctionne comme un charme