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Creating a blurring overlay view

...Since that image in the screenshot is static, you could use CIGaussianBlur from Core Image (requires iOS 6). Here is sample: https://github.com/evanwdavis/Fun-with-Masks/blob/master/Fun%20with%20Masks/EWDBlurExampleVC.m Mind you, this is slower than the other options on this page. #import <Qua...
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Custom UITableViewCell from nib in Swift

I'm trying to create a custom table view cell from a nib. I'm referring to this article here . I'm facing two issues. 11 A...
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How do I convert seconds to hours, minutes and seconds?

...ossible to use time.strftime, which gives more control over formatting: from time import strftime from time import gmtime strftime("%H:%M:%S", gmtime(666)) '00:11:06' strftime("%H:%M:%S", gmtime(60*60*24)) '00:00:00' gmtime is used to convert seconds to special tuple format that strftime() re...
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Can't create handler inside thread that has not called Looper.prepare()

... You're calling it from a worker thread. You need to call Toast.makeText() (and most other functions dealing with the UI) from within the main thread. You could use a handler, for example. Look up Communicating with the UI Thread in the docume...
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Is MATLAB OOP slow or am I doing something wrong?

...ava static_nop(): 0.87682 sec 8.77 usec per call Java nop() from Java: 0.00014 sec 0.00 usec per call MEX mexnop(): 0.11409 sec 1.14 usec per call C nop(): 0.00001 sec 0.00 usec per call Similar results on R2008a through R2009...
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How to remove all whitespace from a string?

... I just learned about the "stringr" package to remove white space from the beginning and end of a string with str_trim( , side="both") but it also has a replacement function so that: a <- " xx yy 11 22 33 " str_replace_all(string=a, pattern=" ", repl="") [1] "xxyy112233" ...
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Foreign key from one app into another in Django

...me a convenient organisation of my files and namespaces. External apps (eg from DjangoPackages) and apps that I might one day contribute to the public, need to be kept as free as such dependencies as possible (although dependency on some other well-supported public-domain app might be OK. A lot of p...
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GitHub pull request showing commits that are already in target branch

...r. The target branch was behind master and the pull request showed commits from master, so I merged master and pushed it to GitHub, but the commits and diff for them still appear in the pull request after refreshing. I've doubled checked that the branch on GitHub has the commits from master. Why are...
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How can I make my own base image for Docker?

..., to build your own image, you must always specify a base image using the FROM instruction. 5 Answers ...
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upstream sent too big header while reading response header from upstream

... upstream sent too big header while reading response header from upstream is nginx's generic way of saying "I don't like what I'm seeing" Your upstream server thread crashed The upstream server sent an invalid header back The Notice/Warnings sent back from STDERR overflowed their bu...