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How do I apply a perspective transform to a UIView?
...with the UIView's layer, using a CATransform3D to perform the layer's rotation. The trick to get perspective working, as described here, is to directly access one of the matrix cells of the CATransform3D (m34). Matrix math has never been my thing, so I can't explain exactly why this works, but it ...
How can I save an image to the camera roll?
...o the device's camera roll. All that I have done so far is set up an IBAction for the button to save the image. What library method or function can I use to save an image to the user's camera roll?
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Storyboard - refer to ViewController in AppDelegate
consider the following scenario: I have a storyboard-based app. I add a ViewController object to the storyboard, add the class files for this ViewController into the project and specify the name of the new class in the IB identity inspector. Now how am I going to refer to this ViewController program...
Thread vs ThreadPool
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Thread pool will provide benefits for frequent and relatively short operations by
Reusing threads that have already been created instead of creating new ones (an expensive process)
Throttling the rate of thread creation when there is a burst of requests for new work items (I believe this is only ...
Why should we include ttf, eot, woff, svg,… in a font-face
...re older than IE9 - they invented the spec, but eot was a proprietary solution.
ttf and otf are normal old fonts, so some people got annoyed that this meant anyone could download expensive-to-license fonts for free.
Time passes, SVG 1.1 adds a "fonts" chapter that explains how to model a font purely...
Get form data in ReactJS
I have a simple form in my render function, like so:
19 Answers
19
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How do I disable the security certificate check in Python requests
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From the documentation:
requests can also ignore verifying the SSL certificate if you set
verify to False.
>>> requests.get('https://kennethreitz.com', verify=False)
<Response [200]>
If you're using a third-party module...
How to write a CSS hack for IE 11? [duplicate]
...at looks bad in IE 11.I just search here and there but didnt find any solution yet.
8 Answers
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Alternatives to gprof [closed]
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Valgrind has an instruction-count profiler with a very nice visualizer called KCacheGrind. As Mike Dunlavey recommends, Valgrind counts the fraction of instructions for which a procedure is live on the stack, although I'm sorry to say it appears to...
Multiprocessing vs Threading Python [duplicate]
... processes with multiprocessing. Since threads use the same memory, precautions have to be taken or two threads will write to the same memory at the same time. This is what the global interpreter lock is for.
Spawning processes is a bit slower than spawning threads.
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