大约有 31,500 项符合查询结果（耗时：0.0401秒） [XML]
Android Task Affinity Explanation
...ayer stack of activities, and two of them were the same activity. Popping all 5 off the stack will create the phenomenon where you will be interacting with two different versions of the same activity and can be quite confusing.
Users don't usually think in terms of a rigid stack of activities. ...
Java: recommended solution for deep cloning/copying an instance
...t hierarchy):
commons-lang SerializationUtils - using serialization - if all classes are in your control and you can force implementing Serializable.
Java Deep Cloning Library - using reflection - in cases when the classes or the objects you want to clone are out of your control (a 3rd party libra...
Schrödingers MySQL table: exists, yet it does not
I am having the weirdest error of all.
11 Answers
11
...
Why doesn't JavaScript support multithreading?
...because this would cause massive concurrency issues in existing web pages. All Chrome does is separate multiple components (different tabs, plug-ins, etcetera) into separate processes, but I can’t imagine a single page having more than one JavaScript thread.
You can however use, as was suggested,...
Make a div fill the height of the remaining screen space
...e Boxes Layout specification is at the Candidate Recommendation stage, not all browsers have implemented it. WebKit implementation must be prefixed with -webkit-; Internet Explorer implements an old version of the spec, prefixed with -ms-; Opera 12.10 implements the latest version of the spec, unpre...
Overriding id on create in ActiveRecord
...why you can't use mass-assignment to set it. However, when setting it manually, it just works:
o = SomeObject.new
o.id = 8888
o.save!
o.reload.id # => 8888
I'm not sure what the original motivation was, but I do this when converting ActiveHash models to ActiveRecord. ActiveHash allows you to...
Forcing a WPF tooltip to stay on the screen
...(after nearly 6 years years, sorry) as the correct answer because this actually works on all supported versions of Windows and keeps it open for 49 days, which should be long enough :p
– TimothyP
Mar 30 '15 at 9:12
...
Limit text length to n lines using CSS
...limit a text length to "n" lines using CSS (or cut it when overflows vertically).
13 Answers
...
Which are more performant, CTE or temporary tables?
...
Temp tables also allows for Indexes and even Statistics which are sometimes necessary, while a CTE does not.
– CodeCowboyOrg
Sep 4 '14 at 15:30
...
How to build a query string for a URL in C#?
A common task when calling web resources from a code is building a query string to including all the necessary parameters. While by all means no rocket science, there are some nifty details you need to take care of like, appending an & if not the first parameter, encoding the parameters etc.
...