从ibooks中打开一个url崩溃

Question

我想从webview中打开ibooks。当用户点击web视图时，我会显示所有可用于打开该特定pdf的应用程序。但是当我点击ibooks时，应用程序关闭并没有任何反应。

-(void) handleTap{ 
NSURL *pdfURL =[NSURL fileURLWithPath:self.url];// url is like https://www.... 

UIDocumentInteractionController *docController = [UIDocumentInteractionController interactionControllerWithURL:pdfURL]; 


//present a drop down list of the apps that support the file type, click an item in the list will open that app while passing in the file. 
[docController presentOpenInMenuFromRect:CGRectZero inView:self.view animated:YES]; 
} 

谢谢

Answer 1

NSURL *pdfURL =[NSURL fileURLWithPath:self.url];// !!! dpfURL = nil; 

请检查pdfURL，它的值必须是nil。因为方法fileURLWithPath:的参数应该喜欢'file：/// ...'不喜欢'https：// ....'。