大约有 48,000 项符合查询结果（耗时：0.0439秒） [XML]
Detect if Android device has Internet connection
...eck if there is an active Internet connection is to try and connect
to a known server via http.
public static boolean hasActiveInternetConnection(Context context) {
if (isNetworkAvailable(context)) {
try {
HttpURLConnection urlc = (HttpURLConnection) (new URL("http://www.go...
How can I shrink the drawable on a button?
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Now the image is displayed but it does not get resized! I tried values between 0.1f and 10f. Any idea? Thanks for your help...
– Reto
Sep 24 '11 at 16:01
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How can I convert spaces to tabs in Vim or Linux?
...t it to work, not sure what is necessary and what is not, and btw i don't know what the "%" before reatab is doing: :set noet, :set tabstop=2, :retab!, :%retab!, :set tabstop=1, :retab!, :%retab!
– cwd
Feb 2 '12 at 1:39
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Declaring an unsigned int in Java
...at int variables are still signed when declared but unsigned arithmetic is now possible by using those methods in the Integer class.
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One line ftp server in python
... Right, I do deserve down-voting, but really, people should know Twisted. And of course Twisted is in the base install of many Linuxes.
– Ali Afshar
Feb 14 '11 at 17:42
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Creating an iframe with given HTML dynamically
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Interesting; I hadn't seen this technique before. I know that the URI encoding/decoding adds a performance hit, yet I've also seen it described as the sole alternative in environments that don't support the srcdoc property. Is there a downside to the document.write approach?
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retrieve links from web page using python and BeautifulSoup [closed]
...r class because it's a bit more efficient (memory and speed wise), if you know what you're parsing in advance.
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Fully custom validation error message with Rails
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Now, the accepted way to set the humanized names and custom error messages is to use locales.
# config/locales/en.yml
en:
activerecord:
attributes:
user:
email: "E-mail address"
errors:
models:
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Tricky Google interview question
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@ThomasAhle Don't know if you saw this but it has code at the end that is capable of calculating n-th number in isolation. Like e.g. a billionth number.
– Will Ness
Aug 23 '16 at 21:37
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Alternative to google finance api [closed]
...apikey=demo
DON'T Try Yahoo Finance API (it is DEPRECATED or UNAVAILABLE NOW).
Here is a link to previous Yahoo Finance API discussion on StackOverflow.
Here's an alternative link to Yahoo Finance API posted on
Google Code.
For beginners, you can generate a CSV with a simple API call:
http:/...