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Usage of forceLayout(), requestLayout() and invalidate()
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I often see requestLayout being called directly after invalidate is called, I even see that happening in Android source code for things like TextView, but according to this diagram doing so is redundant, right? So is there any purpose for doing that?
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Generating CSV file for Excel, how to have a newline inside a value
...ixed the leading spaces issue in the question, I typed the CSV example manually and didn't copy-paste from a real file, the real file doesn't include those spaces, good catch.
– Nir
Aug 10 '09 at 7:41
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How do I pass a unique_ptr argument to a constructor or a function?
...e_ptr<Base> n)
: next(std::move(n)) {}
In order for the user to call this, they must do one of the following:
Base newBase(std::move(nextBase));
Base fromTemp(std::unique_ptr<Base>(new Base(...));
To take a unique pointer by value means that you are transferring ownership of the p...
Check if a string is html or not
...(c[i].nodeType == 1) return true;
}
return false;
}
The idea is to allow browser DOM parser to decide if provided string looks like an HTML or not. As you can see it simply checks for ELEMENT_NODE (nodeType of 1).
I made a couple of tests and looks like it works:
isHTML('<a>this is a...
How to kill a child process after a given timeout in Bash?
I have a bash script that launches a child process that crashes (actually, hangs) from time to time and with no apparent reason (closed source, so there isn't much I can do about it). As a result, I would like to be able to launch this process for a given amount of time, and kill it if it did not re...
Find what filetype is loaded in vim
...p;filetype ==# 'cpp'
setlocal noexpandtab
endif
& syntax works for all options: https://vi.stackexchange.com/questions/2569/how-do-i-check-the-value-of-a-vim-option-in-vimscript
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impr...
How do I add a foreign key to an existing SQLite table?
... Dec 10 '09 at 23:26
Daniel VassalloDaniel Vassallo
301k6666 gold badges475475 silver badges424424 bronze badges
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What's a concise way to check that environment variables are set in a Unix shell script?
...is therefore in the Korn Shell, and in the POSIX shells, including specifically Bash.
It is usually documented in the shell's man page in a section called Parameter Expansion. For example, the bash manual says:
${parameter:?word}
Display Error if Null or Unset. If parameter is null or unset, the...
Get list of passed arguments in Windows batch script (.bat)
...ke to find a Windows batch counterpart to Bash's $@ that holds a list of all arguments passed into a script.
14 Answers
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How to convert Linux cron jobs to “the Amazon way”?
...ds and no other cron worker will execute
the job. The lock will automatically be released after the TTL has
expired. This is conceptually very similar to the SQS option we
discussed yesterday.
Also see; Google's chubby
http://static.googleusercontent.com/external_content/untrusted_dlcp...