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Android Spinner: Get the selected item change event
...us answers are not correct. They work for other widgets and views, but the documentation for the Spinner widget clearly states:
A spinner does not support item click
events. Calling this method will raise
an exception.
Better use OnItemSelectedListener() instead:
spinner.setOnItemSelecte...
Calculate size of Object in Java [duplicate]
...omparing sizes of data structures) and it seems like there is no method to do this in Java. Supposedly, C/C++ has sizeOf() method, but this is nonexistant in Java. I tried recording the free memory in the JVM with Runtime.getRuntime().freeMemory() before and after creating the object and then re...
How do I set the default font size in Vim?
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set guifont=Monospace:h20
My recommendation for setting the font is to do (if your version supports it)
set guifont=*
This will pop up a menu that allows you to select the font. After selecting the font, type
set guifont?
To show what the current guifont is set to. After that copy that lin...
How do I make an Android EditView 'Done' button and hide the keyboard when clicked?
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Use TextView.setImeOptions and pass it actionDone.
like textView.setImeOptions(EditorInfo.IME_ACTION_DONE);
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How to get the second column from command output?
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Shorter cmd as you do not need start and end markers: <some_command> | sed 's/.* \(".*"\)/\1/'
– Timo
Jan 11 '19 at 9:10
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Execute the setInterval function without delay the first time
...elf for subsequent calls using setTimeout instead:
function foo() {
// do stuff
// ...
// and schedule a repeat
setTimeout(foo, delay);
}
// start the cycle
foo();
This guarantees that there is at least an interval of delay between calls. It also makes it easier to cancel the loop ...
Postgresql: password authentication failed for user “postgres”
...led. I did it before a couple of times without this problem. What should I do? And what happens?
18 Answers
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What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
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You should use 400 for business rules. Don't return 2xx if the order was not accepted. HTTP is an application protocol, never forget that. If you return 2xx the client can assume the order was accepted, regardless of any information you send in the body.
From RES...
How is AngularJS different from jQuery
...r code and generate necessary javascript code (tree-shaking) to shrink the download size down to 35Kish.
Angular2 emulated Shadow DOM. (ref)
This opens a door for server rendering that can address SEO issue and work with Nativescript etc that don't work on browsers.
The official document sit...
Which comment style should I use in batch files?
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tl;dr: REM is the documented and supported way to embed comments in batch files.
:: is essentially a blank label that can never be jumped to, whereas REM is an actual command that just does nothing. In neither case (at least on Windows 7) d...