Question

我正在使用UIDocumentInteractionController在我的应用中打开文档。我使用下面的方法预览PDF文件： -

- (IBAction)previewDocument:(id)sender 
{
    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"sample" ofType:@"pdf"];

    // Initialize Document Interaction Controller
    self.documentInteractionController = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:filePath]];

    // Configure Document Interaction Controller
    [self.documentInteractionController setDelegate:self];

    // Preview PDF
    [self.documentInteractionController presentOptionsMenuFromRect:down.frame inView:self.view animated:YES];

}

我已经读过，我们可以通过UIDocumentInteractionController从其他应用中读取应用中的文件。

在我的应用中，如何使用UIDocumentInteractionController从其他应用中读取文件？这一切是如何发生的？

Answer 1

预览PDF文档并进行共享。

设置委托方法： - UIDocumentInteractionControllerDelegate

NSURL *URL = [[NSBundle mainBundle] URLForResource:@"Your PDF Name" withExtension:@"pdf"];
UIDocumentInteractionController *documentInteractionController =[UIDocumentInteractionController interactionControllerWithURL:URL];
documentInteractionController.delegate = self;
[documentInteractionController presentPreviewAnimated:YES];

- (UIViewController *) documentInteractionControllerViewControllerForPreview: (UIDocumentInteractionController *) controller {
return self;
}

如果您有任何疑惑，请点击以下链接阅读： https://developer.apple.com/library/ios/documentation/FileManagement/Conceptual/DocumentInteraction_TopicsForIOS/Articles/PreviewingandOpeningItems.html

通过UIDocumentInteractionController打开文件

1 个答案: