How to open/create UIManagedDocument synchronously?

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How do I create a global UIManagedDocument instance per document-on-disk shared by my whole application using blocks?

I am trying to design a helper method which will retrieve a UIManagedDocument, then open and return it, so that I may access the same UIManagedDocument from several places in my app. I am having trouble with the asynchronous nature of this as I am not too familiar with blocks. Ideally the sequence of events would be this: Class X calls the helper method to retrieve the UIManagedDocument and includes a block of code to run when the opened document is returned. The class method retrieves the UIManagedDocument...

Answer:

You can execute the block with completionBlock(doc). [doc openWithCompletionHandler:^(BOOL success)...

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Other solutions

How do sites like khanacademy, ixl etc get their content creators to create the math questions with equations, figures etc and save it in their database of question bank. Is there any good open source library to create a web based editor?

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Answer:

Khan Academy open sources a lot of the tools they use to build Khan Academy on GitHub. Khan (Khan Academy...

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Answer:

When you sign up it asks you.

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shehan J at Yahoo! Answers Mark as irrelevant Undo

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Answer:

I feel you need to trap bookmark event of Browser and process your request I will provide you hint for...

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Ashish Kasama at Quora Mark as irrelevant Undo

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Answer:

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Answer:

Edit: to pursue your subsequent goals with the workbook, it would be better to correspond off list....

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Amanda at Yahoo! Answers Mark as irrelevant Undo

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Answer:

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Answer:

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Answer:

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pudgito at Yahoo! Answers Mark as irrelevant Undo

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