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How to use Active Support core extensions
...put them there and don't have to think twice for things like 1.hour.ago or ap {:a => 3, :b => "nick"} to work.
– konung
Nov 24 '10 at 22:58
1
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How to change an application icon programmatically in Android?
Is it possible to change an application icon directly from the program?
I mean, change icon.png in the res\drawable folder.
I would like to let users to change application's icon from the program so next time they would see the previously selected icon in the launcher.
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How can I test https connections with Django as easily as I can non-https connections using 'runserv
I have an application that uses "secure" cookies and want to test it's functionality without needing to set up a complicated SSL enabled development server. Is there any way to do this as simply as I can test non-encrypted requests using ./manage.py runserver ?
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When to use CouchDB over MongoDB and vice versa
...ongoDB: If you need dynamic queries. If you prefer to define indexes, not map/reduce functions. If you need good performance on a big DB. If you wanted CouchDB, but your data changes too much, filling up disks.
CouchDB : For accumulating, occasionally changing data, on which pre-defined queries are ...
Eclipse Android and gitignore
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There are file types to ignore
# built application files
*.apk
*.ap_
# files for the dex VM
*.dex
# Java class files
*.class
# generated files
bin/
gen/
# Local configuration file (sdk path, etc)
local.properties
# Eclipse project files
.classpath
.project
#...
__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...会输出任何警告信息。
注意，默认情况下，编译器是能识别类似printf的“标准”库函数。
__attribute__ noreturn
该属性通知编译器函数从不返回值，当遇到类似函数需要返回值而却不可能运行到返回值处就已经退出来的情况，该...
Linux/Unix command to determine if process is running?
...x | grep command
The output on Gentoo Linux:
14484 ? S 0:00 apache2
14667 ? S 0:00 apache2
19620 ? Sl 0:00 apache2
21132 ? Ss 0:04 apache2
The output on OS X:
42582 ?? Z 0:00.00 (smbclient)
46529 ?? Z 0:00.00 (smbclient)
46539 ??...
Extract substring using regexp in plain bash
...ash
\s* any space characters (any whitespace character)
\( start capture group
\S* any non-space characters
\) end capture group
.*$ anything at the end
\1 substitute 1st capture group for everything on line
p print it
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【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
...事情非常多，比如具体选择哪个射频通道进行通信，怎么识别空中数据包，具体在哪个时间点把数据包发送出去，怎么保证数据的完整性，ACK如何接收，如何进行重传，以及如何对链路进行管理和控制等等。LL层只负责把数据发...
How do I get an apk file from an Android device?
How do I get the apk file from an android device? Or how do I transfer the apk file from device to system?
24 Answers
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