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How to detect user inactivity in Android

... Selects Session Timeout to be 5 mins. Does some operations on the app. (all in foreground) Now User bring Myapp to background and starts some other app. ----> Count down timer starts and logs out user after 5 mins OR user turns the screen OFF. ----> Count down timer starts and logs ou...
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Linux: copy and create destination dir if it does not exist

... oops, right. But then, test may be a bash builtin (especially if written as [[ -d "$d" ]]) and mkdir can not ;-) – Michael Krelin - hacker Oct 7 '09 at 17:00 1 ...
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How do I determine the target architecture of static library (.a) on Mac OS X?

...cutable ppc Example with archive: logan:/Users/logan% file /usr/lib/libMallocDebug.a /usr/lib/libMallocDebug.a: Mach-O universal binary with 2 architectures /usr/lib/libMallocDebug.a (for architecture i386): current ar archive random library /usr/lib/libMallocDebug.a (for architecture ppc): ...
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Targeting .NET Framework 4.5 via Visual Studio 2010

Today I installed the .NET Framework 4.5 on my machine expecting to be able to use it from Visual Studio 2010, since it's just a minor update that should't pose problems for Visual Studio 2010. Unfortunately I am not, even manually removing certain 4.0 and adding the corresponding 4.5 assemblies r...
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Why does 'continue' behave like 'break' in a Foreach-Object?

...each that helps to make this conversion easy and make mistakes easy, too). All continues should be replaced with return. P.S.: Unfortunately, it is not that easy to simulate break in ForEach-Object. share | ...
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Random String Generator Returning Same String [duplicate]

...om instance in the method, which causes it to return the same values when called in quick succession. I would do something like this: private static Random random = new Random((int)DateTime.Now.Ticks);//thanks to McAden private string RandomString(int size) { StringBuilder builder = new...
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Iterating over Java collections in Scala

... As of Scala 2.8, all you have to do is to import the JavaConversions object, which already declares the appropriate conversions. import scala.collection.JavaConversions._ This won't work in previous versions though. ...
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Refresh a page using JavaScript or HTML [duplicate]

... no, i did not test them all – epoch Jan 10 '14 at 8:06 13 ...
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Using ChildActionOnly in MVC

... The ChildActionOnly attribute ensures that an action method can be called only as a child method from within a view. An action method doesn’t need to have this attribute to be used as a child action, but we tend to use this attribute to prevent the action methods from being invoked as a res...
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Should Gemfile.lock be included in .gitignore?

...gem, Gemfile.lock should be in your repository. It's used as a snapshot of all your required gems and their dependencies. This way bundler doesn't have to recalculate all the gem dependencies each time you deploy, etc. From cowboycoded's comment below: If you are working on a gem, then DO NOT c...