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Java Can't connect to X11 window server using 'localhost:10.0' as the value of the DISPLAY variable
... DISPLAY variable
unset DISPLAY
This helps in most cases (e.g. starting application servers or other java based tools) and avoids to modify all that many command lines.
It can also be comfortable to add it to the .bash_profile for a dedicated app-server/tools user.
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What is a “feature flag”?
...(or Feature Toggle) is the ability to turn features (sub-sections) of your application on/off at easily:
perhaps via a re-deploy, or
some internal page where pages/features can be toggled live.
I guess the example there was that it's handy to have the control to reduce the feature-set somewhat ...
What does addChildViewController actually do?
...2011 videos and Mr. View Controller, Bruce D. Nilo, said this:
viewWillAppear:, viewDidAppear:, etc have nothing to do with addChildViewController:. All that addChildViewController: does is to say "This view controller is a child of that one" and it has nothing to do with view appearance. When t...
How do I get the logfile from an Android device?
...e that logcollector doesn't work for versions of android above 4.1 because applications are now only allowed to read their own log entries. (groups.google.com/forum/#!topic/android-log-collector/…)
– Matthew Lowe
Jul 1 '13 at 12:19
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Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Wh
...and started getting the following message on the console when launching my application using Eclipse. The app works fine but I would like to find out the cause of the problem and hopefully a fix for it.
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Switching to a TabBar tab view programmatically?
Let's say I have a UIButton in one tab view in my iPhone app, and I want to have it open a different tab in the tab bar of the TabBarController . How would I write the code to do this?
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How to delete a file from SD card?
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Change for Android 4.4+
Apps are not allowed to write (delete, modify ...) to external storage except to their package-specific directories.
As Android documentation states:
"Apps must not be allowed to write to secondary external storage
dev...
Rails - Could not find a JavaScript runtime?
...was a bit hairy as this didn't fix it right away and I was also trying new apps with 3.0.9 and 3.0.4 but got (different) errors with them. Finally I did a new app again - and also got rails rc5 with it and added the rubytheracer and did a bunlde update and finally I can get the server up and running...
django change default runserver port
... member. Save the file as a management command of your own, e.g. under <app-name>/management/commands/runserver.py:
from django.conf import settings
from django.core.management.commands import runserver
class Command(runserver.Command):
default_port = settings.RUNSERVER_PORT
I'm loadin...
Generating statistics from Git repository [closed]
... of git-statistics project at Google Summer of Code 2008 This is not a web app
gitinspector Is a rather new, CLI based Python tool for generating nice reports
Hercules - native app without dependencies, written in Go, which specializes in advanced analysis types.
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