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ViewPager.setOffscreenPageLimit(0) doesn't work as expected
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Does ViewPager require a minimum of 1 offscreen pages
Yes. If I am reading the source code correctly, you should be getting a warning about this in LogCat, something like:
Requested offscreen page limit 0 too small; defaulting to 1
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How does this site infecting script work?
...answering the question but still +1, as this was indeed a very interesting read and good suggestions made. Ta
– Peter Perháč
Jan 22 '10 at 23:48
add a comment
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PHP file_get_contents() and setting request headers
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Actually, upon further reading on the file_get_contents() function:
// Create a stream
$opts = [
"http" => [
"method" => "GET",
"header" => "Accept-language: en\r\n" .
"Cookie: foo=bar\r\n"
]
];
$conte...
How do I copy to the clipboard in JavaScript?
...cluding displaying and user interacting with any security prompts.
Text is read from the DOM and placed on the clipboard.
During testing ~April 2015 only Internet Explorer was noted as displaying permissions prompts whilst writing to the clipboard.
Overriding the copy event
See Clipboard API docu...
How to replace DOM element in place using Javascript?
....replaceWith(span)
Advanced usage
You can pass multiple values (or use spread operator ...).
Any string value will be added as a text element.
Examples:
// Initially [child1, target, child3]
target.replaceWith(span, "foo") // [child1, span, "foo", child3]
const list = ["bar", span]
target.r...
SQL : BETWEEN vs =
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Although BETWEEN is easy to read and maintain, I rarely recommend its use because it is a closed interval and as mentioned previously this can be a problem with dates - even without time components.
For example, when dealing with monthly data it is oft...
How do I adb pull ALL files of a folder present in SD Card
...x:
adb shell find "/sdcard/Folder1" -iname "*.jpg" | tr -d '\015' | while read line; do adb pull "$line"; done;
Here is an explanation:
adb shell find "/sdcard/Folder1" - use the find command, use the top folder
-iname "*.jpg" - filter the output to only *.jpg files
| ...
How to execute file I'm editing in Vi(m)
... it allows launching sequence of commands that are connected with pipe and read stdout.
For example:
! node %
is equivalent to opening command prompt window and launching commands:
cd my_current_directory
node my_current_file
See "Vim tips: Working with external commands" for details.
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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
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You may want to read http://research.google.com/pubs/pub37077.html
TL;DR: randomly inserting nop instructions in programs can easily increase performance by 5% or more, and no, compilers cannot easily exploit this. It's usually a combinatio...
make_unique and perfect forwarding
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@DavidRodríguez-dribeas: read Herb's blog to understand the exception safety issue. forget about "not designed to be derived", that's just rubbish. instead of my suggestion of making make_unique a class, i now think it's better to make it a function...