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Integrating the ZXing library directly into my Android application

I'm writing this in mere desperation :) I've been assigned to make a standalone barcode scanner (as a proof of concept) to an Android 1.6 phone. ...
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What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?

Can someone give me a quick summary of what a ViewModelLocator is, how it works, and what the pros/cons are for using it compared to DataTemplates? ...
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Local Storage vs Cookies

I want to reduce load times on my websites by moving all cookies into local storage since they seem to have the same functionality. Are there any pros/cons (especially performance-wise) in using local storage to replace cookie functionality except for the obvious compatibility issues? ...
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C# vs C - Big performance difference

... use 'root', the compiler may have been removing the call to optimize your method. You could try to accumulate the square root values into an accumulator, print it out at the end of the method, and see what's going on. Edit : see Jalf's answer below ...
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vertical-align with Bootstrap 3

... This answer presents a hack, but I would highly recommend you to use flexbox (as stated in @Haschem answer), since it's now supported everywhere. Demos link: - Bootstrap 3 - Bootstrap 4 alpha 6 You still can use a custom class when you need it: .vcenter { ...
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Split a module across several files

...other modules. There is precedent for this in Rust's std::io crate where some types from sub-modules are re-exported for use in std::io. Edit (2019-08-25): the following part of the answer was written quite some time ago. It explains how to setup such a module structure with rustc alone. Today, ...
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What is the list of supported languages/locales on Android?

I'd like to know what to name my folder for different languages. Where can I find the supported list of languages on Android? ...
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What is java interface equivalent in Ruby?

...in Ruby like we do in java and enforce the Ruby modules or classes to implement the methods defined by interface. 10 Answe...
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What's the fastest way to merge/join data.frames in R?

... The match approach works when there is a unique key in the second data frame for each key value in the first. If there are duplicates in the second data frame then the match and merge approaches are not the same. Match is, of course, faster since it is not doing as much. In particular it never lo...
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Method Resolution Order (MRO) in new-style classes?

...on) there is an example which uses old style classes to demonstrate how methods are resolved in classic resolution order and how is it different with the new order. ...