大约有 32,000 项符合查询结果（耗时：0.0473秒） [XML]
Fragment onCreateView and onActivityCreated called twice
...ctivity carrying only one fragment (which would get replaced sometimes). I then realized I use onSaveInstanceState only in the fragment (and onCreateView to check for savedInstanceState), not in the activity.
On device turn the activity containing the fragments gets restarted and onCreated is calle...
'AND' vs '&&' as operator
...|| true))
$e = false || true;
// The constant false is assigned to $f and then true is ignored
// Acts like: (($f = false) or true)
$f = false or true;
But in most cases it seems like more of a developer taste thing, like every occurrence of this that I've seen in CodeIgniter framework like @Sarf...
How to encode a URL in Swift [duplicate]
...f the URLComponents object:
// configure `components` as shown above, and then:
components.percentEncodedQuery = components.percentEncodedQuery?.replacingOccurrences(of: "+", with: "%2B")
let url = components.url!
For Swift 2 rendition, where I manually do all of this percent escaping myself, se...
Why can't decimal numbers be represented exactly in binary?
...rs. If you use a floating decimal point type (e.g. System.Decimal in .NET) then plenty of values which can't be represented exactly in binary floating point can be exactly represented.
Let's look at it another way - in base 10 which you're likely to be comfortable with, you can't express 1/3 exactly...
Populate data table from data reader
... There's a straight forward option to load datareader to datatable, then why anyone would use this?
– Abbas
May 21 '15 at 10:37
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What's the -practical- difference between a Bare and non-Bare repository?
...tes the two separate, but related concepts of workspace and repository and then uses the confusing term bare to separate the two ideas.
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Ignore with CSS?
...oes not work for Firefox. If the <br/> does not have space around it then it combines words around <br/> together. Here is the sample You can see discussion about it below
– shinesecret
Feb 17 '14 at 10:07
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Should logger be private static or not
...ger by a factory which in turn may cache the already-instantiated loggers, then using the non-static form won't add that much overhead. Log4j for example has a LogManager for this purpose.
protected Log log = LogManager.getLogger(getClass());
...
What is “lifting” in Scala?
...remely loosely), F such that, if we have an F[A] and a function A => B, then we can get our hands on an F[B] (think, for example, F = List and the map method)
We can encode this property as follows:
trait Functor[F[_]] {
def map[A, B](fa: F[A])(f: A => B): F[B]
}
This is isomorphic to b...
Vertical line using XML drawable
...t unless there's some fix or workaround for the dimensions issue I mention then this likely won't work for most people. What we really need is an orientation attribute in <shape/> or <stroke/>.
You can also try referencing another drawable in the rotate tag's attributes, such as:
<...