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About Android image and asset sizes
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xxxhdpi (640 dpi, Extra-extra-extra-high density screen) - 192px x 192px (1.0) (5.33)
My short article is helpful to create image resources using imagemagick, when there are multiple images.
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No IUserTokenProvider is registered
I recently updated Asp.Net Identity Core of my application form 1.0 to 2.0.
10 Answers
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How to get scrollbar position with Javascript?
...: document.querySelector('#scrollArea'),
rootMargin: '0px',
threshold: 1.0
}
var observer = new IntersectionObserver(callback, options);
var target = document.querySelector('#listItem');
observer.observe(target);
Most modern browsers support the IntersectionObserver, but you should use the ...
scipy.misc module has no attribute imread?
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imread is deprecated in SciPy 1.0.0, and will be removed in 1.2.0.
Use imageio.imread instead.
import imageio
im = imageio.imread('astronaut.png')
im.shape # im is a numpy array
(512, 512, 3)
imageio.imwrite('imageio:astronaut-gray.jpg', im[:, :, 0])
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PHP mail function doesn't complete sending of e-mail
...tion:
$header = "From: noreply@example.com\r\n";
$header.= "MIME-Version: 1.0\r\n";
$header.= "Content-Type: text/html; charset=ISO-8859-1\r\n";
$header.= "X-Priority: 1\r\n";
$status = mail($to, $subject, $message, $header);
if($status)
{
echo '<p>Your mail has been sent!</p>';
}...
How do I escape ampersands in XML so they are rendered as entities in HTML?
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As per §2.4 of the XML 1.0 spec, you should be able to use &amp;.
I tried &amp; but this isn't allowed.
Are you sure it isn't a different issue? XML explicitly defines this as the way to escape ampersands.
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Android Studio suddenly cannot resolve symbols
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I am using android studio 1.0.2, when i opened my project, i was full of red errors. i solved it by android studio-->file-->invalidate chaches/restart. when my project restarted it worked..no red errors
– SoftEye
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.htaccess - how to force “www.” in a generic way?
...irst condition checks whether the Host value is not empty (in case of HTTP/1.0); the second checks whether the the Host value does not begin with www.; the third checks for HTTPS (%{HTTPS} is either on or off, so %{HTTPS}s is either ons or offs and in case of ons the s is matched). The substitution ...
How to set background color of a View
...REEN);
Set background to green defining in Colors.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="myGreen">#00FF00</color>
<color name="myGreenWithAlpha">#FF00FF00</color>
</resources>
and using:
v.setBackgroundResour...
nodejs how to read keystrokes from stdin
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In node >= v6.1.0:
const readline = require('readline');
readline.emitKeypressEvents(process.stdin);
process.stdin.setRawMode(true);
process.stdin.on('keypress', (str, key) => {
console.log(str)
console.log(key)
})
See https://...