NSInternalInconsistencyExceptionException:指定的模式表示样式没有相应的表示控制器

Kri*_*ite 1 objective-c uitableview uiimagepickercontroller ios

更新到iOS 8.0 SDK后,尝试UIImagePickerController从内显示时出现错误UITableViewCell

*** Assertion failure in -[PartsSearchViewController 
_presentViewController:withAnimationController:completion:], 
/SourceCache/UIKit/UIKit-3318.0.1/UIViewController.m:5726

*** Terminating app due to uncaught exception 
'NSInternalInconsistencyException', 
reason: 'The specified modal presentation style doesn't 
have a corresponding presentation controller.'
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我的UITableViewCell“ PartCell”被这样声明:

@interface PartCell : UITableViewCell <UIImagePickerControllerDelegate>
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在PartCell的presentViewController以下行中失败:

- (IBAction)takeAuditImageClicked:(id)sender {
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = (id)self;
    picker.allowsEditing = YES;
    picker.modalPresentationStyle = UIModalPresentationNone;
    picker.sourceType = UIImagePickerControllerSourceTypeCamera;

    // FAILING ON THE LINE BELOW:
    [[UIViewController topMostController] presentViewController:picker animated:YES completion:NULL];  
}
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以下是UIViewController生成单元格的“ PartSearchViewController”中的代码:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"partCell";
    UINib *nib = [UINib nibWithNibName:@"PartCell" bundle:nil];
    [tableView registerNib:nib forCellReuseIdentifier:CellIdentifier];

    PartCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];// forIndexPath:indexPath];
    if (cell == nil)
    {
        cell = [[PartCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];

    }

    [self fetchedResultsController:[self fetchedResultsControllerForTableView:tableView] configureCell:cell atIndexPath:indexPath];

    return cell;
}
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经过寻找后UIViewControllerUIImagePickerController文档,我想不出有什么变化吧的代码到现在失败。

Kri*_*ite 5

问题出在

    picker.modalPresentationStyle = UIModalPresentationNone;
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注释行或将演示文稿样式选项更改为任何其他值都不会引发错误。

我猜想8.0之前的SDK只是忽略了此设置,而是默认使用UIModalPresentationFullScreen-但这绝对是个猜测。如果有人有更好的答案,我会相应地打上它!

从苹果文档:

UIModalPresentationNone

非模态视图表示或解雇。

在iOS 7.0和更高版本中可用。

(在可用于的七个演示样式选项中modalPresentationStyleUIModalPresentationNone是唯一引发上述错误的选项。)