Question

我正在尝试为iPad和iPhone实现一个Popover。在iOS 9之前，iPad和iPhone有不同的ViewController。对于iOS9，应该有可能使用普通的ViewController和不同的PresentationStyles吗？（部署目标是iOS 9.0）我是对的吗？

根据这篇文章：

Stackoverflow answer from Daniel Galasko

我试图在目标c中实现这个答案。

_mediaTypePopoverVC = [[MediaTypePopoverVC alloc] initWithProductId:PRODUCT_ID_NONE_PARENT];
    UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:_mediaTypePopoverVC];
    _popoverVC = [[UIViewController alloc] init];
    _popoverVC.modalPresentationStyle = UIModalPresentationPopover;
    _popoverVC.preferredContentSize = CGSizeMake(650.0, 364.0);
    _popoverVC.popoverPresentationController.delegate = self;


    [navigationController setViewControllers:@[_popoverVC]];

    _mediaTypePopoverVC.title = POPOVER_TITLE(mediaType.name_en, (int) [mediaList count]);
    _mediaTypePopoverVC.isCommonMediaList = YES;

    [Logic sharedInstance].currentPopoverController = _popoverVC;
    [self presentViewController:_popoverVC animated:true completion:nil];
     UIPopoverPresentationController *popover = _popoverVC.popoverPresentationController;
    if(nil != popover){
        popover.permittedArrowDirections = UIPopoverArrowDirectionAny;
        popover.sourceView = baseButton;
        popover.sourceRect = baseButton.bounds;

    }

崩溃将出现在此行中：

[self presentViewController:_popoverVC animated:true completion:nil];

我的日志只给我这个：

Signal: SIGABRT (signal SIGABRT)

在iPhone上显示View Controller模式后崩溃

0 个答案: