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How do I draw a shadow under a UIView?
I'm trying to draw a shadow under the bottom edge of a UIView in Cocoa Touch. I understand that I should use CGContextSetShadow() to draw the shadow, but the Quartz 2D programming guide is a little vague:
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How to set environment variables in Jenkins?
I would like to be able to do something like:
14 Answers
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Get event listeners attached to node using addEventListener
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Chrome DevTools, Safari Inspector and Firebug support getEventListeners(node).
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How do I make a splash screen?
I wanted to make my app look more professional, so I decided that I wanted to make a splash screen.
34 Answers
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Cluster analysis in R: determine the optimal number of clusters
Being a newbie in R, I'm not very sure how to choose the best number of clusters to do a k-means analysis. After plotting a subset of below data, how many clusters will be appropriate? How can I perform cluster dendro analysis?
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How to install Android SDK Build Tools on the command line?
I want to setup the Android dev environment from command line, and encounter the following issue:
19 Answers
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How do you add swap to an EC2 instance?
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A fix for this problem is to add swap (i.e. paging) space to the instance.
Paging works by creating an area on your hard drive and using it for extra memory, this memory is much slower than normal memory however much more of it is available.
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Is there a link to GitHub for downloading a file in the latest release of a repository?
Using GitHub's Release feature , it is possible to provide a link to download a specific version of the published software. However, every time a release is made, the gh-page also needs to be updated.
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How to specify new GCC path for CMake
My OS is centos which has a default gcc in path /usr/bin/gcc . But it is old, I need a new version of gcc. So I install a new version in a new path /usr/local/bin/gcc .
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How to make an HTML back link?
What is the simplest way to create an <a> tag that links to the previous web page? Basically a simulated back button, but an actual hyperlink. Client-side technologies only, please.
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