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Can I scroll a ScrollView programmatically in Android?
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ScrollView sv = (ScrollView)findViewById(R.id.scrl);
sv.scrollTo(0, sv.getBottom());
or
sv.scrollTo(5, 10);
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Open another application from your own (intent)
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20 Answers
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Why should I avoid std::enable_if in function signatures
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109
Put the hack in the template parameters.
The enable_if on template parameter approach has at l...
How can I connect to a Tor hidden service using cURL in PHP?
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102
You need to set option CURLOPT_PROXYTYPE to CURLPROXY_SOCKS5_HOSTNAME, which sadly wasn't defin...
How to get the first item from an associative PHP array?
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Abhi Beckert
30.5k1111 gold badges7777 silver badges105105 bronze badges
answered Oct 24 '09 at 6:25
soulmergesoulm...
TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...效。 听起来似乎很简单，好像就是在发送端发包时记下t0，然后接收端再把这个ack回来时再记一个t1，于是RTT = t1 – t0。没那么简单，这只是一个采样，不能代表普遍情况。
经典算法
RFC793 中定义的经典算法是这样的：
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Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
...t isinstance(s, str) or not s.isdigit():
return None
elif len(s) > 10: #too many digits for int conversion
return None
else:
return int(s)
Better (EAFP: Easier to ask for forgiveness than permission):
try:
return int(s)
except (TypeError, ValueError, OverflowError): #int con...
PHP script - detect whether running under linux or Windows?
...sible Values For: PHP_OS and php_unameDocs:
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
echo 'This is a server using Windows!';
} else {
echo 'This is a server not using Windows!';
}
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How do I set the size of Emacs' window?
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iphone Core Data Unresolved error while saving
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answered Aug 16 '09 at 13:01
David WongDavid Wong
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