ios - 从 UIButton 而不是 UIBarButtonItem 显示 WEPopover

Question

我在我的应用程序中使用 WEPopover 来弹出一个包含一些按钮的 popover Controller ，当我将 wepopover Controller 操作放在 tabbarIteam 中时它可以工作，但是当我单击 UIButton 时我需要获取 popover。如何做到这一点这是我的 barbuttonitem 代码用于显示弹出框。

-(IBAction)_clickbtnAccount:(id)sender
{
    if (!self.popoverController)
    {
        UIViewController *contentViewController = [[pageAccount alloc]initWithNibName:@"pageAccount" bundle:nil];
        self.popoverController = [[[popoverClass alloc] initWithContentViewController:contentViewController] autorelease];
        self.popoverController.delegate = self;
        self.popoverController.passthroughViews = [NSArray arrayWithObject:self.navigationController.navigationBar];

        [self.popoverController presentPopoverFromBarButtonItem:sender
                                       permittedArrowDirections:(UIPopoverArrowDirectionUp|UIPopoverArrowDirectionDown) 
                                                       animated:YES];
        [contentViewController release];
    }
    else
    {
        [self.popoverController dismissPopoverAnimated:YES];
        self.popoverController = nil;
    }
}

-(IBAction)_clickbtnAccount:(id)sender
{
    if (!self.popoverController)
    {
        UIButton *senderButton = (UIButton *)sender;
        [self.popoverController presentPopoverFromRect:[senderButton frame]
                                                inView:@"pageAccount"
                              permittedArrowDirections:(UIPopoverArrowDirectionUp|UIPopoverArrowDirectionDown) 
                                              animated:YES];        
    }
    else
    {
        [self.popoverController dismissPopoverAnimated:YES];
        self.popoverController = nil;
    }
}

Answer 1

所以您不想显示来自UIBarButtonItem 的WEPopover，而是来自UIButton，对吧？!只需使用

- (void)presentPopoverFromRect:(CGRect)rect 
                    inView:(UIView *)view 
  permittedArrowDirections:(UIPopoverArrowDirection)arrowDirections 
                  animated:(BOOL)animated;

代替

- (void)presentPopoverFromBarButtonItem:(UIBarButtonItem *)item 
           permittedArrowDirections:(UIPopoverArrowDirection)arrowDirections 
                           animated:(BOOL)animated;

并传入您的 UIButton 的 rect。

以你的代码为例:

-(IBAction)_clickbtnAccount:(id)sender
{
    if (!self.popoverController) {

        UIViewController *contentViewController = [[pageAccount alloc]initWithNibName:@"pageAccount" bundle:nil];
        self.popoverController = [[[popoverClass alloc] initWithContentViewController:contentViewController] autorelease];
        self.popoverController.delegate = self;
        self.popoverController.passthroughViews = [NSArray arrayWithObject:self.navigationController.navigationBar];

        UIButton *senderButton = (UIButton *)sender;
        [self.popoverController presentPopoverFromRect:[senderButton frame]
                        inView:self.view
                                        permittedArrowDirections:(UIPopoverArrowDirectionUp|UIPopoverArrowDirectionDown) 
                  animated:YES];

        [contentViewController release];
    } else {
        [self.popoverController dismissPopoverAnimated:YES];
        self.popoverController = nil;
    }
}