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Clearing a string buffer/builder after loop
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I think the performance benefit comes from the string mutability, not from saving the instantiation. here's a quick test of 1e8 iterations: inside loop (2.97s): ideone.com/uyyTL14w, outside loop (2.87s): ideone.com/F9lgsIxh
– Mark Elliot
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Custom ImageView with drop shadow
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This is taken from Romain Guy's presentation at Devoxx, pdf found here.
Paint mShadow = new Paint();
// radius=10, y-offset=2, color=black
mShadow.setShadowLayer(10.0f, 0.0f, 2.0f, 0xFF000000);
// in onDraw(Canvas)
canvas.drawBitmap(b...
How to detect Adblock on my website?
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Please don't prevent users from entering your site because they have ads disabled -- that just escalates the arms race. -- If you ask us kindly to turn them on, we might just do it -- if you try to force us, we'll either just stop going to your site, o...
Android 4.2: back stack behaviour with nested fragments
...t).commit();
}
This gives you the same behavior as if your clicking back from regular Fragment B back to Fragment A, except now it is on the child fragments as well!
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upstream sent too big header while reading response header from upstream
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upstream sent too big header while reading response header from upstream is nginx's generic way of saying "I don't like what I'm seeing"
Your upstream server thread crashed
The upstream server sent an invalid header back
The Notice/Warnings sent back from STDERR overflowed their bu...
how to read value from string.xml in android?
...t;
<item>My Tab 2</item>
</string-array>
And then from your Activity you can get the reference like so:
String[] tab_names = getResources().getStringArray(R.array.tab_names);
String tabname1=tab_names[0];//"My Tab 1"
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How do you sign a Certificate Signing Request with your Certification Authority?
...he email in the DN
copy_extensions = copy # Required to copy SANs from CSR to cert
####################################################################
[ req ]
default_bits = 4096
default_keyfile = cakey.pem
distinguished_name = ca_distinguished_name
x509_extensions = ca_extens...
What is tail call optimization?
...ion because the calling function will simply return the value that it gets from the called function. The most common use is tail-recursion, where a recursive function written to take advantage of tail-call optimization can use constant stack space.
Scheme is one of the few programming languages tha...
Animate text change in UILabel
... I don't really understand about the license stuff. What prevents people from using it in commercial apps now?
– Esqarrouth
Jun 5 '15 at 5:44
2
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Swift compiler segmentation fault when building
...extension to the class that's giving you problems.
Move a group of methods from the main file to SegFaultDebugger.swift.
Compile.
At this point, one of three things happens:
You still get the segfault in the original file: Move the methods from SegFaultDebugger.swift back to the original file an...