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转型产品经理必看 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...就更谈不上用户体验了。有问题不是坏事，可怕的是发现不了问题，发现问题后我开始解决问题，于是，我逐渐进入第二阶段。
阶段二：功能思维
发现工程思维下的产品工作不尽如人意，于是我开始有意识的思考，如何去分...
Converting NSString to NSDate (and back again)
...rmat contained in the string, use NSDataDetector for parsing date.
//Role players.
NSString *dateString = @"Wed, 03 Jul 2013 02:16:02 -0700";
__block NSDate *detectedDate;
//Detect.
NSDataDetector *detector = [NSDataDetector dataDetectorWithTypes:NSTextCheckingAllTypes error:nil];
[detector enumer...
UIView frame, bounds and center
...em of the view's bounds is within the view itself. (court=view, basketball/players=content inside the view)
Like the frame, view.center is also in the coordinates of the superview.
Frame vs Bounds - Example 1
The yellow rectangle represents the view's frame. The green rectangle represents the vie...
Encapsulation vs Abstraction?
...ile phone, you see their different types of functionalities as camera, mp3 player, calling function, recording function, multimedia etc. It is abstraction, because you are seeing only relevant information instead of their internal engineering.
abstract class MobilePhone
{
public void C...
Graph visualization library in JavaScript
...tionScript library for creating visualizations that run in the Adobe Flash Player, abandoned since 2012.
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Android onCreate or onStartCommand for starting service
... will be called. and you can pass any action to perform . like for a music player , You can play ,pause,stop using action
And you do any operation in service by sending an action and receiving it on onStartCommand
onCreate work like a Constructor.
Edit in Short
onCreate() calls only for the fir...
How to force use of overflow menu on devices with menu button
...wered Dec 26 '13 at 6:46
a fair playera fair player
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When is std::weak_ptr useful?
...sed. Unless there is a loop... You may have several teams sharing the same player (past teams ?). If the team object "owns" the members, then there is no need to use a shared_ptr to begin with.
– Offirmo
Mar 16 '14 at 9:53
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What is “loose coupling?” Please provide examples
... won't come loose, thus making replacing very expensive. A loosely coupled player would allow effortlessly changing the battery.
The same goes for software development: it is generally (much) better to have loosely coupled code to facilitate extension and replacement (and to make individual parts e...
What scalability problems have you encountered using a NoSQL data store? [closed]
...field: just a big TEXT field basically.
We did not go with any of the new players (CouchDB, Cassandra, MongoDB, etc) because although they each offer great features/performance in their own right, there were always drawbacks for our circumstances (e.g. missing/immature Java support).
Extra benefit...