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Confused about Service vs Factory

As I understand it, when inside a factory I return an object that gets injected into a controller. When inside a service I am dealing with the object using this and not returning anything. ...
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Programmatically relaunch/recreate an activity?

After I do some change in my database, that involves significant change in my views, I would like to redraw, re-execute onCreate. ...
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When using Spring Security, what is the proper way to obtain current username (i.e. SecurityContext)

I have a Spring MVC web app which uses Spring Security. I want to know the username of the currently logged in user. I'm using the code snippet given below . Is this the accepted way? ...
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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been

Using the HTML5 <canvas> element, I would like to load an image file (PNG, JPEG, etc.), draw it to the canvas completely transparently, and then fade it in. I have figured out how to load the image and draw it to the canvas, but I don't know how to change its opacity once it as been drawn. ...
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Clearing intent

My Android app is getting called by an intent that is passing information (pendingintent in statusbar). 20 Answers ...
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phonegap open link in browser

hey experts i am using phonegap 2.9.0 and i am using the above code to open the link in the browser but it opens it in the same app...... how to open it safari browser? ...
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C# 5 async CTP: why is internal “state” set to 0 in generated code before EndAwait call?

Yesterday I was giving a talk about the new C# "async" feature, in particular delving into what the generated code looked like, and the GetAwaiter() / BeginAwait() / EndAwait() calls. ...
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Ways to synchronize interface and implementation comments in C# [closed]

Are there automatic ways to sync comments between an interface and its implementation? I'm currently documenting them both and wouldn't like to manually keep them in sync. ...
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MySQL Cannot Add Foreign Key Constraint

So I'm trying to add Foreign Key constraints to my database as a project requirement and it worked the first time or two on different tables, but I have two tables on which I get an error when trying to add the Foreign Key Constraints. The error message that I get is: ...
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How do I pass a string into subprocess.Popen (using the stdin argument)?

If I do the following: 11 Answers 11 ...