如何在iOS应用程序中使用“打开...”功能？

Question

我不希望我的应用程序添加到“开放的......”列表中，但要获得列表本身。并将文件发送到其他应用程序。

我工作的内部通讯的应用程序，所以当用户收到一个文件附件时，他/她可以打开任何应用程序安装在每个设备上的文件...

Answer 1

UIDocumentInteractionController *controller = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:appFile]]; 
     self.controller.delegate = self; 
CGRect navRect = self.view.frame; 
[self.controller presentOptionsMenuFromRect:navRect inView:self.view animated:YES]; 

实现以下UIDocumentInteractionControllerDelegate方法

#pragma mark - UIDocumentInteractionControllerDelegate 

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

- (UIView *)documentInteractionControllerViewForPreview:(UIDocumentInteractionController *)controller 
{ 
    return self.view; 
} 

- (CGRect)documentInteractionControllerRectForPreview:(UIDocumentInteractionController *)controller 
{ 
    return self.view.frame; 
} 

Answer 2

看UIDocumentInteractionController https://developer.apple.com/library/ios/#documentation/UIKit/Reference/UIDocumentInteractionController_class/Reference/Reference.html这里https://developer.apple.com/library/ios/#documentation/FileManagement/Conceptual/DocumentInteraction_TopicsForIOS/Articles/OpeningSupportedFileTypes.html#//apple_ref/doc/uid/TP40010412-SW1

Answer 3

另一种选择：

使用UIActivityViewController购自iOS 6.0 >版本

//create instance with file URL 
UIActivityViewController *activity = [[UIActivityViewController alloc] initWithActivityItems:@[fileURLHere] applicationActivities:nil]; 
//present it 
[self presentViewController:activity animated:YES completion:NULL]; 

注意：有可能使用UIDocumentInteractionController是问题。检查uidocumentinteractioncontroller-stopped-working-ios-8