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UIStatusBarStyle PreferredStatusBarStyle does not work on iOS 7

In my iPhone application built with Xcode 5 for iOS 7 I set UIViewControllerBasedStatusBarAppearance=YES in info.plist , and in my ViewController I have this code: ...
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What is the difference between “px”, “dip”, “dp” and “sp”?

...tation: px Pixels - corresponds to actual pixels on the screen. in Inches - based on the physical size of the screen. 1 Inch = 2.54 centimeters mm Millimeters - based on the physical size of the screen. pt Points - 1/72 of an inch based on the physical size of the screen. ...
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String output: format or concat in C#?

Let's say that you want to output or concat strings. Which of the following styles do you prefer? 31 Answers ...
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Order of items in classes: Fields, Properties, Constructors, Methods

Is there an official C# guideline for the order of items in terms of class structure? 15 Answers ...
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How to include file in a bash shell script

Is there a way to include another shell script in a shell script to be able to access its functions? 5 Answers ...
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Using Python 3 in virtualenv

Using virtualenv , I run my projects with the default version of Python (2.7). On one project, I need to use Python 3.4. ...
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How to remove an item from an array in AngularJS scope?

...emove a particularly item from an array is with Array.splice. Also, when using ng-repeat, you have access to the special $index property, which is the current index of the array you passed in. The solution is actually pretty straightforward: View: <a ng-click="delete($index)">Delete</a&g...
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How to get access to HTTP header information in Spring MVC REST controller?

I am new to web programming in general, especially in Java, so I just learned what a header and body is. 3 Answers ...
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What's is the difference between train, validation and test set, in neural networks?

I'm using this library to implement a learning agent. 7 Answers 7 ...
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Multiple linear regression in Python

I can't seem to find any python libraries that do multiple regression. The only things I find only do simple regression. I need to regress my dependent variable (y) against several independent variables (x1, x2, x3, etc.). ...