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What is the relationship between UIView's setNeedsLayout, layoutIfNeeded and layoutSubviews?
...nce layoutSubviews is meant to be overridden but is not meant to be called from or to another view. Either the framework determines when to call it (by grouping together multiple layout requests into one call for efficiency) or you indirectly do by calling layoutIfNeeded somewhere in the view hierar...
Playing .mp3 and .wav in Java?
...stions/15149547/… Looks like you need to manually add the javafx library from inside the Java 7 folder if you use Eclipse.
– Gyurme
Jun 15 '13 at 12:40
7
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Finding duplicates in O(n) time and O(1) space
Input: Given an array of n elements which contains elements from 0 to n-1, with any of these numbers appearing any number of times.
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How to join absolute and relative urls?
...
>>> from urlparse import urljoin
>>> url1 = "http://www.youtube.com/user/khanacademy"
>>> url2 = "/user/khanacademy"
>>> urljoin(url1, url2)
'http://www.youtube.com/user/khanacademy'
Simple.
...
How can I save an image with PIL?
...for doing the conversion for proper visualization:
import sys
import numpy
from PIL import Image
img = Image.open(sys.argv[1]).convert('L')
im = numpy.array(img)
fft_mag = numpy.abs(numpy.fft.fftshift(numpy.fft.fft2(im)))
visual = numpy.log(fft_mag)
visual = (visual - visual.min()) / (visual.max(...
Line-breaking widget layout for Android
...
Since May 2016 there is new layout called FlexboxLayout from Google, which is highly configurable for purpose you want.
FlexboxLayout is in Google GitHub repository at https://github.com/google/flexbox-layout at this moment.
You can use it in your project by adding dependency to...
How can I get Docker Linux container information from within the container itself?
...
You can communicate with docker from inside of a container using unix socket via Docker Remote API:
https://docs.docker.com/engine/reference/api/docker_remote_api/
In a container, you can find out a shortedned docker id by examining $HOSTNAME env var.
Acc...
Clean way to launch the web browser from shell script?
... can put
http-server -o
in your bash script and it will launch a server from the current directory and open a browser to that page.
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How do you do natural logs (e.g. “ln()”) with numpy in Python?
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I usually do like this:
from numpy import log as ln
Perhaps this can make you more comfortable.
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Why is git push gerrit HEAD:refs/for/master used instead of git push origin master
...for/'branch' ref using any Git client tool".
The following image is taken from the Intro to Gerrit. When you push to Gerrit, you do git push gerrit HEAD:refs/for/<BRANCH>. This pushes your changes to the staging area (in the diagram, "Pending Changes"). Gerrit doesn't actually have a branch c...