弹出窗口内的 UIPrintInteractionController

Question

我必须在弹出窗口中实现UIPrintInteractionController。我已经实现了 -

(UIViewController *)printInteractionControllerParentViewController:(UIPrintInteractionController *)printInteractionController {
    UINavigationController* navigationController = [[UINavigationController alloc] init];
    UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:navigationController];
    [popover presentPopoverFromRect:address.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
    [popover.contentViewController.view setBackgroundColor:[UIColor grayColor]];
    navigationController.preferredContentSize = CGSizeMake(320, 540);
    return navigationController;
}  

但它会崩溃说：

reason: '-[UIPopoverController initWithContentViewController:] called when not running under UIUserInterfaceIdiomPad.'

甚至在 ipad 模拟器中进行测试。该怎么办 ？我必须像 一样实现弹出窗口。

Answer 1

您可以使用下面的代码找出不同的设备是 iPad 还是 iPhone ..

if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
    // code for iPad here 
}else{

    // code for iPhone here
}

更新

• 您可以通过将 uiview 传递给自定义视图来使用以下方法弹出窗口。

  -(void) popOver:(UIView *)view{
  
  view.hidden = NO;
  
  view.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.001, 0.001);   // view to popup
  [UIView animateWithDuration:0.3
                   animations:^{
                       view.transform = CGAffineTransformScale(CGAffineTransformIdentity, 1.1, 1.1);
               } completion:^(BOOL finished) {
                   [UIView  animateWithDuration:0.1
                                     animations:^{
                                         view.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.9,0.9); // custom view
                                     }completion:^(BOOL  finished) {
                                         [UIView animateWithDuration:0.1 animations:^{
                                             view.transform = CGAffineTransformIdentity;   // custom view to pop
                                         }];
                                     }];
               }];
  
  }
  

这个方法显示了一个像 popover 这样的 uiview，现在可以在上面添加任何 UI 组件。