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How to get the result of OnPostExecute() to main activity because AsyncTask is a separate class?
...w screenshot to findout how that can cause issues.
As you can see if we started AsyncTask with a strong reference then there is no guarantee that our Activity/Fragment will be alive till we get data, so it would be better to use WeakReference in those cases and that will also help in memory manag...
What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...
If the shell scripts start with #!/bin/bash, they will always run with bash from /bin. If they however start with #!/usr/bin/env bash, they will search for bash in $PATH and then start with the first one they can find.
Why would this be useful?...
bodyParser is deprecated express 4
...your opinion to use express-generator it will generate skeleton project to start with, without deprecated messages appeared in your log
run this command
npm install express-generator -g
Now, create new Express.js starter application by type this command in your Node projects folder.
express n...
Android Paint: .measureText() vs .getTextBounds()
...ngle, in purple is result of measureText.
It's seen that bounds left part starts some pixels from left, and value of measureText is incremented by this value on both left and right. This is something called Glyph's AdvanceX value. (I've discovered this in Skia sources in SkPaint.cpp)
So the outcom...
Simple regular expression for a decimal with a precision of 2
...ire that the whole string is a number of this form, wrap the expression in start and end tags such as (in Perl's form):
^\d+(\.\d{1,2})?$
To match numbers without a leading digit before the decimal (.12) and whole numbers having a trailing period (12.) while excluding input of a single period (.)...
How do you do relative time in Rails?
...
Something like this would work.
def relative_time(start_time)
diff_seconds = Time.now - start_time
case diff_seconds
when 0 .. 59
puts "#{diff_seconds} seconds ago"
when 60 .. (3600-1)
puts "#{diff_seconds/60} minutes ago"
when 3600 .. (3600*24-1)...
How to get relative path from absolute path
...;
/// <param name="fromPath">Contains the directory that defines the start of the relative path.</param>
/// <param name="toPath">Contains the path that defines the endpoint of the relative path.</param>
/// <returns>The relative path from the start directory to the end...
How do I clear/delete the current line in terminal?
...d: Ctrl+W
To clear your entire command prompt: Ctrl + L
Toggle between the start of line and current cursor position: Ctrl + XX
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How to make good reproducible pandas examples
...vided by @Andy for writing good Pandas questions are an excellent place to start. For more information, refer to how to ask and how to create Minimal, Complete, and Verifiable examples.
Please clearly state your question upfront. After taking the time to write your question and any sample code, tr...
Draw a perfect circle from user's touch
...pp (Kids drawings: circle, lines, etc, whatever came to his mind).
Then he started to draw circles and then he asked me to make it "good circle" (from my understanding: make the drawn circle perfectly round, as we know
no matter how stable we try to draw something with our finger on the screen, a c...