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iPhone: Detecting user inactivity/idle time since last screen touch
...t So changed it UIApplication and Implement above methods to detect user becoming idle but i am getting error "Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'There can only be one UIApplication instance.'".. is anything else i need to do...?
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How to take screenshot of a div with JavaScript?
I am building something called the "HTML Quiz". It's completely ran on JavaScript and it's pretty cool.
10 Answers
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Undefined method 'task' using Rake 0.9.0
... just updated Rake to the latest version ( 0.9.0.beta.4 ) and the rake command ends up with the following error message:
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Remove grid, background color, and top and right borders from ggplot2
...ould like to reproduce the plot immediately below by using ggplot2. I can come close, but cannot remove the top and right borders. Below I present several attempts using ggplot2, including several suggestions found on or via Stackoverflow. Unfortunately I have not been able to get those suggestio...
How to pass in password to pg_dump?
...base every night before something catastrophic happens. It looks like this command should meet my needs:
15 Answers
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SQL SELECT WHERE field contains words
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Changing names of parameterized tests
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Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
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This error message means you failed to authenticate.
These are common reasons that can cause that:
Trying to connect with the wrong key. Are you sure this instance is using this keypair?
Trying to connect with the wrong username. ubuntu is the username for the ubuntu based AWS distribu...
How to detect that animation has ended on UITableView beginUpdates/endUpdates?
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What about this?
[CATransaction begin];
[CATransaction setCompletionBlock:^{
// animation has finished
}];
[tableView beginUpdates];
// do some work
[tableView endUpdates];
[CATransaction commit];
This works because the tableView animations use CALayer animations internally....
Twitter Bootstrap 3: how to use media queries?
...e the default screen-size variables per each viewport. See: stackoverflow.com/a/24921600/2817112
– Oriol
Jul 23 '14 at 21:49
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