Can't authenticate with OAUTH for Twitter API

I am trying to authenticate with Twitter for a custom app using Drupal.

For some reason, even though I am including my OAuth credentials, I can't authenticate with the Twitter API.

Here's my code:

How to read, analyze and debug a Linux kernel panic?

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[<00147b7c>] (warn_slowpath_common+0x50/0x60) from [<00147c40>] (warn_slowpath_null+0x1c/0x24)
[<00147c40>] (warn_slowpath_null+0x1c/0x24) from [<0014de44>] (local_bh_enable_ip+0xa0/0xac)

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Given a string that contains a substring, I want to select just the outer string.

Example:

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I managed to programmatically switch to a UITableViewController. However, is there an initial method or something of that nature that I could run as soon as it switches over? I would like the code to run regardless of whether or not the table has data in it.

New to Swift, any help appreciated.

EDIT:

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I am trying to get an input string by using scanf() in a function, but it keeps failing and I don't know why.

Here is part of my code.