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What is the purpose of Looper and how to use it?
...n AsyncTask is better for that purpose and less complex as it encapsulates all the thread managing.
– Fernando Gallego
Nov 29 '12 at 14:15
...
__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...如果你的连接器最大只支持16字节对齐，那么你此时定义32字节对齐也是无济于事的。
packed
使用该属性可以使得变量或者结构体成员使用最小的对齐方式，即对变量是一字节对齐，对域（field）是位对齐。
下面的例子中，x成...
could not resolve host github.com error while cloning remote repository in git
...me/password -- in clear in the proxy URL, see below)
Note the NO_PROXY, to allow to access internal site to your company
You also can register that in your git config:
git config --global http.proxy http://<login_internet>:<password_internet>@aproxy:aport
But if you have incorrect proxy...
Determining the size of an Android view at runtime
...eObserver();
if (viewTreeObserver.isAlive()) {
viewTreeObserver.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
view.getViewTreeObserver().removeOnGlobalLayoutListener(this);
viewWidth = view.getWidth();
viewHeight = view....
Submit HTML form on self page
...
In 2013, with all the HTML5 stuff, you can just omit the 'action' attribute to self-submit a form
<form>
Actually, the Form Submission subsection of the current HTML5 draft does not allow action="" (empty attribute). It is against...
How to convert timestamps to dates in Bash?
... a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns:
15 An...
Have a reloadData for a UITableView animate when changing
...the modes I have a different number of sections and cells per section. Ideally, it would do some cool animation when the table grows or shrinks.
...
How to check iOS version?
...system version as an indication of device or OS capabilities. There is usually a more reliable method of checking whether a particular feature or class is available.
Checking for the presence of APIs:
For example, you can check if UIPopoverController is available on the current device using NSCla...
How to detect if a script is being sourced
I have a script where I do not want it to call exit if it's being sourced.
17 Answers
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How to list all Git tags?
...<pattern>
List tags with names that match the given pattern (or all if no pattern is given).
Typing "git tag" without arguments, also lists all tags.
More recently ("How to sort git tags?", for Git 2.0+)
git tag --sort=<type>
Sort in a specific order.
Supported type...