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Android: Background Image Size (in Pixel) which Support All Devices
...main problem/challenge with android, there is no set size for hdpi, xhdpi, etc. because each manufacture can make a different sized phone/tablet, unlike IOS where only apple makes it. Look at section on range: developer.android.com/guide/practices/…
– toidiu
...
ActiveMQ or RabbitMQ or ZeroMQ or [closed]
... If no wire protocol assumed: see other answers.
– Fletch
Dec 2 '10 at 10:53
19
Having worked in ...
How to determine the encoding of text?
...IC_MIME_ENCODING)
m.load()
encoding = m.buffer(blob) # "utf-8" "us-ascii" etc
There is an identically named, but incompatible, python-magic pip package on pypi that also uses libmagic. It can also get the encoding, by doing:
import magic
blob = open('unknown-file', 'rb').read()
m = magic.Magic(...
Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?
...u see this in .h file:
#ifndef FILE_H
#define FILE_H
/* ... Declarations etc here ... */
#endif
This is a preprocessor technique of preventing a header file from being included multiple times, which can be problematic for various reasons. During compilation of your project, each .cpp file (usu...
Most efficient way to check for DBNull and then assign to a variable?
...ying too much here... I don't think the speed different between "is", "==" etc is going to be the cause of any performance problem you are seeing. Profile your entire code and focus on something that matters... it won't be this.
...
Upgrade python in a virtualenv
...r anyone who has customized their virtualenvs postactivate, predeactivate, etc, this is not a desirable option because all that is lost and has to be manually readded.
– dpwrussell
Apr 18 '16 at 17:26
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What's the best practice for primary keys in tables?
...ase basis, for example:
US States: I'd go for state_code ('TX' for Texas etc.), rather than state_id=1 for Texas
Employees: I'd usually create an artifical employee_id, because it's hard to find anything else that works. SSN or equivalent may work, but there could be issues like a new joiner who ...
What is the difference between List (of T) and Collection(of T)?
...nt API - i.e. Anything that looks for IList, IList<T>, List<T> etc. In short, you have no idea whether it will be called. Polymorphism fixes this.
– Marc Gravell♦
Mar 11 '11 at 18:29
...
How to initialize log4j properly?
...sed to initialize itself, which loggers / appenders got configured and how etc.
The configuration file can be a java properties file or an xml file. Here is a sample of the properties file format taken from the log4j intro documentation page:
log4j.rootLogger=debug, stdout, R
log4j.appender.stdo...
Bower and devDependencies vs dependencies
...d scripts, e.g. unit testing, packaging scripts, documentation generation, etc.
dependencies are required for production use, and assumed required for dev as well.
Including devDependencies within dependencies, as you have it, won't be harmful; the module will just bundle more files (bytes) during...