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How do iOS Push Notifications work?
...nformation about the HTTP/2 request format, and the possible responses and errors from APNs, see Communicating with APNs.
Send the HTTP/2 request to APNs, including cryptographic credentials in the form of a token or a certificate, over a persistent, secure channel.
Establishing this secure channel ...
Tags for Emacs: Relationship between etags, ebrowse, cscope, GNU Global and exuberant ctags
...r modes is based simply on regular expressions and that's very fragile and error prone. Hopefully with the inclusion of semantic in Emacs 23.2 (it used to be an external package before that) we'll start seeing more uses for it (like using it to analyse a buffer source code to properly highlight it)
...
I need to securely store a username and password in Python, what are my options?
...) as f:
passphrase = f.read()
if len(passphrase) == 0: raise IOError
except IOError:
with open(PASSPHRASE_FILE, 'w') as f:
passphrase = os.urandom(PASSPHRASE_SIZE) # Random passphrase
f.write(base64.b64encode(passphrase))
try: os.remove(SECRETSDB_FILE) # If t...
WebView and HTML5
...);
video.setOnCompletionListener(this);
video.setOnErrorListener(this);
video.start();
}
}
}
-Handle the onCompletion and the onError events for the video, in order to get back to the web view.
public void onCompletion(MediaPlayer mp) {
Log.d(TA...
Why should text files end with a newline?
...ooling only to the files that we author and open ourselves up to potential errors introduced by third party files.
Moral of the story: Engineer tooling that does not have the weakness of relying on EOL at EOF.
Feel free to post use cases as they apply to JS, HTML and CSS where we can examine how ...
Why should I avoid using Properties in C#?
...loading, one of the most effective ways of preventing initialization-order errors.
Change Notifications, which are pretty much the entire basis for the MVVM architecture.
Inheritance, for example defining an abstract Type or Name so derived classes can provide interesting but nevertheless constant m...
How to create GUID / UUID?
...
This code still contains a couple of errors: the Math.random()*0xFFFFFFFF lines should be Math.random()*0x100000000 for full randomness, and >>>0 should be used instead of |0 to keep the values unsigned (though with the current code I think it gets away...
Asserting successive calls to a mock method
...891, in assert_any_call
'%s call not found' % expected_string
AssertionError: mock(4) call not found
I find doing it this way to be easier to read and understand than a large list of calls passed into a single method.
If you do care about order or you expect multiple identical calls, assert_h...
What is the difference between Bower and npm?
...on a webpage is very inefficient and costly, also it can give some serious errors). You will have to manually pick which version you want to install. This can have the effect that one of the dependencies will break, but that is something that you will need to fix anyway.
So, the common usage is Bow...
What's the fundamental difference between MFC and ATL?
...ge maps, COM was originally run-time bound using Macros, requiring lots of error handing and causing odd problems. ATL made it template based, compile time bound, and much, much easier to deal with.
[Edit Embellishment: At the time ATL was created, Microsoft's technical road map was mainly focuse...