uidocument

Add “Edit in Excel” or “Edit photo” extension

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The only way to communicate with other iOS apps “locally” is using what is called URLSchemes. This is the documentation to use URLScheme with the MSOffice apps. https://msdn.microsoft.com/en-us/library/office/dn911482.aspx Answering the specific question: How to check if file (image, xls, doc or any other) can be opened to edit? You can use the UIApplication method called … Read more

Returning method object from inside block

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You can’t. Embrace the fact that what you’re trying to do is asynchronous and add a completion block parameter to your getMyData method which is called when the inner completion handler is called. (And remove the return from the method signature): – (void)getMyDataWithCompletion:(void(^)(NSData *data))completion { MyUIDocument *doc = [[MyUIDocument alloc] initWithFileURL:fileURL]; [doc openWithCompletionHandler:^(BOOL success) { … Read more

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