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Fragment onCreateView and onActivityCreated called twice
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I was scratching my head about this for a while too, and since Dave's explanation is a little hard to understand I'll post my (apparently working) code:
private class TabListener<T extends Fragment> implements ActionBar.TabListener {
private Fragment mFragment;
private Activity mA...
Converting an array of objects to ActiveRecord::Relation
... data.
However, if what you want is a relation then:
for ActiveRecord 3.x, don’t call all and instead call scoped, which will give back a Relation which represents the same records that all would give you in an Array.
for ActiveRecord 4.x, simply call all, which returns a Relation.
When ru...
How to detect when cancel is clicked on file input?
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How to change the session timeout in PHP?
I would like to extend the session timeout in php
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How to create module-wide variables in Python? [duplicate]
...ears below, the Python interpreter said the variable __DBNAME__ did not exist.
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How to resize superview to fit all subviews with autolayout?
...tingSize:, passing either UILayoutFittingCompressedSize or UILayoutFittingExpandedSize.
For a normal UIView using autolayout this should just work as long as your constraints are correct. If you want to use it on a UITableViewCell (to determine row height for example) then you should call it again...
How dangerous is it to access an array out of bounds?
...of my program or even beyond that) or I am trying to set a value to an index outside of the array. The program sometimes crashes, but sometimes just runs, only giving unexpected results.
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Things possible in IntelliJ that aren't possible in Eclipse?
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Return type of '?:' (ternary conditional operator)
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Expressions don't have return types, they have a type and - as it's known in the latest C++ standard - a value category.
A conditional expression can be an lvalue or an rvalue. This is its value category. (This is somewhat of ...
CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...源软件做实际配置，更深刻理解CDN的具体工作过程。
Linux 是开放源代码的免费操作系统，已经成功应用于许多关键领域。Bind是Unix/FreeBSD/Linux等类Unix平台上非常有名DNS服务程序，Internet上超过60％的DNS运行的是bind。Bind的最新版...