UIDocumentInteractionController停止工作iOS 8

-(void)presentDocumenTinteractionController{
    self.docController = [UIDocumenTinteractionController interactionControllerWithURL:self.URL];
    self.docController.delegate = self;
    [_docController setUTI:@"com.adobe.pdf"];
    [_docController presentOptionsMenuFromBarButtonItem:self.activityBarButton animated:YES];
}

UnkNown activity items supplied: (
    "<UITextViewPrintFormatter: 0x7f908ba53ca0>"
)

我有同样的问题,并已切换到使用UIActivityViewController.然而,这使得能够打开pDF的应用程序不再显示,所以也许这不是你想要的.

最小解决方案：

如果你想做最少的工作,你甚至不需要将你的PDF读入NSData,使用NSURL作为活动项目,iOS似乎知道该怎么做：

- (void)share:(id)sender
{
    UIActivityViewController *activity =
        [[UIActivityViewController alloc] initWithActivityItems:@[self.URL]
                                          applicationActivities:nil];
    if ([activity respondsToSELEctor:@SELEctor(popoverPresentationController)]) {
        activity.popoverPresentationController.barButtonItem = <# BAR BUTTON ITEM #>;
    }
    [self presentViewController:activity animated:YES completion:NULL];
}

原答案：

使您的视图控制器遵循UIActivityItemsource协议,然后您可以执行以下操作：

- (void)share:(id)sender
{
    self.pdfData = [NSData dataWithContentsOfURL:self.URL];
    UIActivityViewController *activity = [[UIActivityViewController alloc] initWithActivityItems:@[self] applicationActivities:nil];
    if ([activity respondsToSELEctor:@SELEctor(popoverPresentationController)]) {
        activity.popoverPresentationController.barButtonItem = <# BAR BUTTON ITEM #>;
    }
    [self presentViewController:activity animated:YES completion:NULL];
}

如果您有PDF文件,则遵守协议相对简单.您当然可以优化并返回较小的NSData甚至是预览图像,但最低限度地执行此操作：

- (id)activityViewControllerPlaceholderItem:(UIActivityViewController *)activityViewController
{
    return _pdfData;
}

- (id)activityViewController:(UIActivityViewController *)activityViewController
    itemFOractivityType:(NSString *)activityType
{
    return _pdfData;
}

- (NSString *)activityViewController:(UIActivityViewController *)activityViewController
    subjectFOractivityType:(NSString *)activityType
{
    return self.title;
}

- (NSString *)activityViewController:(UIActivityViewController *)activityViewController
    dataTypEIDentifierFOractivityType:(NSString *)activityType
{
    return @"com.adobe.pdf";
}