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Using a ListAdapter to fill a LinearLayout inside a ScrollView layout
... it turns out it should display a few items within this ScrollView . The normal way to do that would be to use the existing ListAdapter , connect it to a ListView and BOOM I'd have my list of items.
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How to use the 'og' (Open Graph) meta tag for Facebook share
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Use:
<!-- For Google -->
<meta name="description" content="" />
<meta name="keywords" content="" />
<meta name="author" content="" />
<meta name="copyright" content="" />
<meta name="application-name" cont...
When to use self over $this?
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Short Answer
Use $this to refer to the current
object. Use self to refer to the
current class. In other words, use
$this->member for non-static members,
use self::$member for static members.
Full Answer
Here i...
How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
..." side of a jump instruction. This can be a big win, if the prediction is correct it means that the jump instruction is basically free and will take zero cycles. On the other hand if the prediction is wrong, then it means the processor pipeline needs to be flushed and it can cost several cycles. So ...
Unit testing with Spring Security
... available as a bean in the container, so there is no way to easily inject or autowire it out of the box.
Before we started to use Spring Security, we would create a session-scoped bean in the container to store the Principal, inject this into an "AuthenticationService" (singleton) and then inject ...
Can you define aliases for imported modules in Python?
In Python, is it possible to define an alias for an imported module?
5 Answers
5
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How to assertThat something is null with Hamcrest?
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You can use IsNull.nullValue() method:
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.nullValue;
assertThat(attr.getValue(), is(nullValue()));
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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
...om.uuid #=> "1ca71cd6-08c4-4855-9381-2f41aeffe59c"
See other possible formats here.
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Sort a list by multiple attributes?
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A key can be a function that returns a tuple:
s = sorted(s, key = lambda x: (x[1], x[2]))
Or you can achieve the same using itemgetter (which is faster and avoids a Python function call):
import operator
s = sorted(s, key = operator.itemgetter(1, 2))
And notice that here...
What is Android keystore file, and what is it used for?
This is a general question, but particularly I am interested in it's use for Android. What is a keystore file, and what is it used for?
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