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Android代码优化小技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...解为Foo[]与Bar[]要比(Foo,Bar)好很多。(当然，为了某些好的API的设计，可以适当做一些妥协。但是在自己的代码内部，你应该多多使用分解后的容易。
通常来说，需要避免创建更多的对象。更少的对象意味者更少的GC动作，GC会对...
Python Requests package: Handling xml response
...ython comes with built-in XML parsers. I recommend you use the ElementTree API:
import requests
from xml.etree import ElementTree
response = requests.get(url)
tree = ElementTree.fromstring(response.content)
or, if the response is particularly large, use an incremental approach:
response = requ...
What should I use Android AccountManager for?
...not use an AccountManager without a SyncAdapter before Android 2.2 / Froyo API 8)
With AccountManager / SyncAdapter / ContentProvider:
AccountManager gives users a central point (Settings > Accounts) to define their credentials
Android decides when synchronization can be done via SyncAdapter....
what is the difference between a portlet and a servlet?
...ly strong parallels between these two standards they differ in containers, APIs, life cycle, configuration, deployment, etc.
The main difference between portlet vs. servlet could be that while servlet always responds to single type of action - request, portlet (due to nature of its life cycle and ...
Java generics type erasure: when and what happens?
... there will be type metadata at runtime, available through the Reflection API. Yep, "type erasure" is not as simple as many people think...
– Rogério
Dec 28 '09 at 0:19
...
Defining Z order of views of RelativeLayout in Android
...
Please note, buttons and other elements in API 21 and greater have a high elevation, and therefore ignore the xml order of elements regardless of parent layout. Took me a while to figure that one out.
...
How to parse/format dates with LocalDateTime? (Java 8)
Java 8 added a new java.time API for working with dates and times ( JSR 310 ).
7 Answers
...
Finding index of character in Swift String
... problem that it hides the semantics of string access. Imagine creating an API for accessing linked lists that looks just like the API for an array. People would like write horribly inefficient code.
– Erik Engheim
Nov 21 '14 at 12:48
...
Measure elapsed time in Swift
...is "swiftified". So the correct answer is probably to use the DispatchTime API.
My function would look something like:
// Swift 3
func evaluateProblem(problemNumber: Int, problemBlock: () -> Int) -> Answer
{
print("Evaluating problem \(problemNumber)")
let start = DispatchTime.now() /...
CSRF Token necessary when using Stateless(= Sessionless) Authentication?
...ow body={someJson} to override the default request body. That's really bad API design and extremely risky. Though if your Server App allows http://...?method=POST&body={someJson} you should really overthink what you did there and why and if it's necessary at all. (I'd say in 99,9999% of the case...