大约有 9,700 项符合查询结果(耗时:0.0200秒) [XML]

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Objective-C Static Class Level variables

... will be wondering, why should I overwrite the NSObject initialize method. Apple documentation about this method has the answer: "The runtime sends initialize to each class in a program exactly one time just before the class, or any class that inherits from it, is sent its first message from within ...
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How to elegantly deal with timezones

... a website that is hosted in a different timezone than the users using the application. In addition to this, users can have a specific timezone. I was wondering how other SO users and applications approach this? The most obvious part is that inside the DB, date/times are stored in UTC. When on the s...
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How to add a button to a PreferenceScreen?

... return true; } }); This will appear like a normal Preference, with just a title and a summary, so it will look like it belongs. Edit: I changed to using @string/myCoolButton and getString(R.string.myCoolButton) because it's best to use resources for com...
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What does the -ObjC linker flag do?

I have an app that works with and without the linker flag. However, without the linker flag, I get a very different behaviour when adding data to a view. ...
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Is int[] a reference type or a value type?

...ways reference types which are allocated on the managed heap, and your app's variable contains a reference to the array and not the array itself. https://msdn.microsoft.com/en-us/library/bb985948.aspx share ...
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PowerShell: Run command from script's directory

... If you're calling native apps, you need to worry about [Environment]::CurrentDirectory not about PowerShell's $PWD current directory. For various reasons, PowerShell does not set the process' current working directory when you Set-Location or Push-Lo...
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Difference between string and text in rails?

I'm making a new web app using Rails, and was wondering, what's the difference between string and text ? And when should each be used? ...
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How do I improve ASP.NET MVC application performance?

How do you improve your ASP.NET MVC application performance? 19 Answers 19 ...
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Is it valid to replace http:// with // in a ?

... "the spec" is hardly a good standard for whether it's wise to do in a web app. – Matt Howell Feb 15 '09 at 1:25 6 ...
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Returning value from Thread

...memory consistency guarantees of CountDownLatch. The value array creation happens-before uiThread start (program order rule) which synchronizes-with the assignment of 2 to value[0] (thread start) which happens-before latch.countDown() (program order rule) which happens-before latch.await() (guarante...