如何在iOS應用程序中使用「打開...」功能？

Question

我不希望我的應用程序添加到「開放的......」列表中，但要獲得列表本身。並將文件發送到其他應用程序。

我工作的內部通訊的應用程序，所以當用戶收到一個文件附件時，他/她可以打開任何應用程序安裝在每個設備上的文件...

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]; 

實現以下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這裏https://developer.apple.com/library/ios/#documentation/FileManagement/Conceptual/DocumentInteraction_TopicsForIOS/Articles/OpeningSupportedFileTypes.html#//apple_ref/doc/uid/TP40010412-SW1

Answer 3

另一種選擇：

使用UIActivityViewController購自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是問題。檢查uidocumentinteractioncontroller-stopped-working-ios-8