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getting exception “IllegalStateException: Can not perform this action after onSaveInstanceState”
... happening as its not happening in application code but its getting caused by some or the other event from the application (assumption)
...
Read stream twice
...pache.commons.io.IOUtils.copy to copy the contents of the InputStream to a byte array, and then repeatedly read from the byte array using a ByteArrayInputStream. E.g.:
ByteArrayOutputStream baos = new ByteArrayOutputStream();
org.apache.commons.io.IOUtils.copy(in, baos);
byte[] bytes = baos.toByteA...
Using the Swift if let with logical AND operator &&
...tln("success!")
}
For those now using Swift 3, "where" has been replaced by a comma. The equivalent would therefore be:
if let w = width as? Int, w < 500
{
println("success!")
}
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i...
How do you underline a text in Android XML?
... underline something from code use:
TextView tv = (TextView) view.findViewById(R.id.tv);
SpannableString content = new SpannableString("Content");
content.setSpan(new UnderlineSpan(), 0, content.length(), 0);
tv.setText(content);
Hope this helps
...
How can I split a string into segments of n characters?
...return null when you may be expecting an empty array. Protect against this by appending || [].
So you may end up with:
var str = 'abcdef \t\r\nghijkl';
var parts = str.match(/[\s\S]{1,3}/g) || [];
console.log(parts);
console.log(''.match(/[\s\S]{1,3}/g) || []);
...
Measuring execution time of a function in C++
...function. This is because the CPU of your machine can be less or more used by other processes running on your computer, just as your mind can be more or less concentrated when you solve a math exercise. In the human mind, we can remember the solution of a math problem, but for a computer the same pr...
Batch equivalent of Bash backticks
...
You can do it by redirecting the output to a file first. For example:
echo zz > bla.txt
set /p VV=<bla.txt
echo %VV%
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Faye vs. Socket.IO (and Juggernaut)
...uirement that the Faye client (there are server-side clients in Node and Ruby, remember) be able to talk to any Bayeux server (and the Faye server to any Bayeux client) may be deal-breaker.
Bayeux has specific requirements that servers and clients support certain transport types, and says how to neg...
returning in the middle of a using block
...t's because return statement makes the end of the using block inaccessible by any code paths. The end of the using block needs to be ran so the object can be disposed if needed.
– mekb
Jul 22 '19 at 11:21
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Performance of foreach, array_map with lambda and array_map with static function
...1.2 sec.
Supposing the lackluster speed of the map on closure was caused by the closure possibly being evaluated each time, I also tested like this:
function useMapClosure($numbers) {
$closure = function($number) {
return $number * 10;
};
return array_map($closure, $numbers);
}
But ...