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Dilemma: when to use Fragments vs Activities:
... will tell you: "When I see the UI, I will know whether to use an Activity or a Fragment". In the beginning this will not have any sense, but in time, you will actually be able to tell if you need Fragment or not.
There is a good practice I found very helpful for me. It occurred to me while I was ...
How to use gradle zip in local system without downloading when using gradle-wrapper
... location specified by your wrapper configuration. A
relative URL is supported - you can specify a distribution file
relative to the location of gradle-wrapper.properties file.
So, I changed distributionUrl property in gradle-wrapper.properties to
distributionBase=GRADLE_USER_HOME
distributi...
Why does my application spend 24% of its life doing a null check?
I've got a performance critical binary decision tree, and I'd like to focus this question on a single line of code. The code for the binary tree iterator is below with the results from running performance analysis against it.
...
Difference between rake db:migrate db:reset and db:schema:load
... which I don't understand is how rake db:schema:load different from the former two.
5 Answers
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What is the difference between new/delete and malloc/free?
...
new/delete
Allocate/release memory
Memory allocated from 'Free Store'
Returns a fully typed pointer.
new (standard version) never returns a NULL (will throw on failure)
Are called with Type-ID (compiler calculates the size)
Has a version explicitly to ha...
Are multiple `.gitignore`s frowned on?
...dependent projects, it seems it would be simplest to just have one .gitignore file at the root of the repo than various ones throughout. Is there a standard best practice on this or some analysis online of when one approach is better than the other?
...
Android. WebView and loadData
It's possible to use following method for content's setting of a web-view
loadData(String data, String mimeType, String encoding)
...
Why does range(start, end) not include end?
...
Because it's more common to call range(0, 10) which returns [0,1,2,3,4,5,6,7,8,9] which contains 10 elements which equals len(range(0, 10)). Remember that programmers prefer 0-based indexing.
Also, consider the following common code snipp...
Socket.IO - how do I get a list of connected sockets/clients?
...od on the namespaces, this returns a array of all connected sockets.
API for no namespace:
var clients = io.sockets.clients();
var clients = io.sockets.clients('room'); // all users from room `room`
For a namespace
var clients = io.of('/chat').clients();
var clients = io.of('/chat').clients('ro...
Internet Explorer's CSS rules limits
I've read conflicting information regarding Internet Explorer's silly CSS limits. I am (think I am) understanding that you can only have 31 <style> and <link> tags (combined), and that each sheet can have up to 31 @import -s (so 31 <link> -s, each to 31 @import -s is fine, a...