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Android 4.3 Bluetooth Low Energy unstable
... 4.3 and doesn't work for 128bit UUIDs in general.
Gatt always can process one command at a time. If several commands get called short after another, the first one gets cancelled due to the synchronous nature of the gatt implementation.
I often see even on modern devices with Android 5, that Wifi in...
How to free memory in Java?
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No one seems to have mentioned explicitly setting object references to null, which is a legitimate technique to "freeing" memory you may want to consider.
For example, say you'd declared a List<String> at the beginning of...
How do you Encrypt and Decrypt a PHP String?
...pt then MAC. The order of encryption and authentication is very important! One of the existing answers to this question made this mistake; as do many cryptography libraries written in PHP.
You should avoid implementing your own cryptography, and instead use a secure library written by and reviewed b...
When and why I should use session_regenerate_id()?
...says, it is a function that will replace the current session ID with a new one, and keep the current session information.
What does it do?
It mainly helps prevent session fixation attacks. Session fixation attacks is where a malicious user tries to exploit the vulnerability in a system to fixate (se...
kill -3 to get java thread dump
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When using kill -3 one should see the thread dump in the standard output. Most of the application servers write the standard output to a separate file. You should find it there when using kill -3. There are multiple ways of getting thread dumps...
Detect URLs in text with JavaScript
Does anyone have suggestions for detecting URLs in a set of strings?
13 Answers
13
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Checking network connection
...lib2.URLError as err:
return False
Currently, 216.58.192.142 is one of the IP addresses for google.com. Change http://216.58.192.142 to whatever site can be expected to respond quickly.
This fixed IP will not map to google.com forever. So this code is
not robust -- it will need constant...
How to template If-Else structures in data-bound views?
... is quite flexible and can let you easily handle this and more complicated ones (more states than true/false).
Another option is to use dynamic templates. You would bind an area to one or more templates with the template name being used based on an observable. Here is a post that I wrote on this t...
Redirect parent window from an iframe action
...here. It makes sense that you should be able to break your site out of someone else's iframe.
– Brian McAuliffe
Sep 25 '14 at 10:54
1
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iPhone UIButton - image position
... (+1), I hate to say it might not be the "proper" way to do this, but it's one of the easiest.
– farzadshbfn
Jun 25 '16 at 15:40
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