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targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi

...f the item as that's often a problem, especially when using collectionView(_:layout:sizeForItemAt:), use a custom variable with the itemSize instead. This works best when you set self.collectionView.decelerationRate = UIScrollView.DecelerationRate.fast. Here's a horizontal version (haven't tested ...
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Integrate ZXing in Android Studio

...tIntegrator(this); integrator.setDesiredBarcodeFormats(IntentIntegrator.ONE_D_CODE_TYPES); integrator.setPrompt("Scan a barcode"); integrator.setCameraId(0); // Use a specific camera of the device integrator.setBeepEnabled(false); integrator.setBarcodeImageEnabled(true); integrator.initiateScan(); ...
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Is it better to reuse a StringBuilder in a loop?

...-time ); } } Results: 25265 17969 Note that this is with JRE 1.6.0_07. Based on Jon Skeet's ideas in the edit, here's version 2. Same results though. public class ScratchPad { static String a; public static void main( String[] args ) throws Exception { long time = Syst...
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How to use Swift @autoclosure

...answered Jun 8 '14 at 5:28 eddie_ceddie_c 3,31711 gold badge1212 silver badges66 bronze badges ...
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How to Test a Concern in Rails

...t I have a Personable concern in my Rails 4 application which has a full_name method, how would I go about testing this using RSpec? ...
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How to find out the number of CPUs using python

...n >= 2.6 you can simply use import multiprocessing multiprocessing.cpu_count() http://docs.python.org/library/multiprocessing.html#multiprocessing.cpu_count share | improve this answer ...
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What is routes.IgnoreRoute(“{resource}.axd/{*pathInfo}”)

...lers.AssemblyResourceLoader" validate="True" /> <add verb="*" path="*_AppService.axd" Ok, so what does that handler do? The AssemblyResourceLoader knows how to look for embedded files within an assembly so it can serve it (send it to the client i.e. a browser). For example, in asp.net web ...
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What are the advantages of using a schema-free database like MongoDB compared to a relational databa

...ility, which is useful in specific scenarios.... – AK_ Sep 26 '14 at 17:58 add a comment  |  ...
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What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?

...per has exceeded the daily limit on requests. And indeed they do: PAYMENT_REQUIRED (402) A daily budget limit set by the developer has been reached. The requested operation requires more resources than the quota allows. Payment is required to complete the operation. The requested operation requir...
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How to solve javax.net.ssl.SSLHandshakeException Error?

...ate saved in a file, you need to add it to your JVM's trust store. At $JAVA_HOME/jre/lib/security/ for JREs or $JAVA_HOME/lib/security for JDKs, there's a file named cacerts, which comes with Java and contains the public certificates of the well-known Certifying Authorities. To import the new cert, ...