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How to detect when an Android app goes to the background and come back to the foreground

... The onPause() and onResume() methods are called when the application is brought to the background and into the foreground again. However, they are also called when the application is started for the first time and before it is killed. You ...
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What is the difference between Cloud, Grid and Cluster? [closed]

What is the difference between Cloud, Cluster and Grid? Please give some examples of each as the definition of cloud is very broad. As answered in another question , can I call Dropbox, Gmail, Facebook, Youtube, Rapidshare etc. a Cloud? ...
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Android - Emulator in landscape mode, screen does not rotate

When I switch to landscape mode ( NUMPAD 7 or CTRL + F11 ) the emulator rotates the screen to landscape orientation but the Android OS and none of the apps rotate. So everything is sitting sideways. Is there something in the AVD configuration that needs to be set in order for the device to rotate ...
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How can I indent multiple lines in Xcode?

When I select multiple lines of code and want to indent them as usual with TAB key, it just deletes them all. I come from Eclipse where I always did it that way. How's that done in Xcode? I hope not line by line ;) ...
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Query EC2 tags from within instance

... use a combination of the AWS metadata tool (to retrieve your instance ID) and the new Tag API to retrieve the tags for the current instance. share | improve this answer | fo...
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What does “Memory allocated at compile time” really mean?

In programming languages like C and C++, people often refer to static and dynamic memory allocation. I understand the concept but the phrase "All memory was allocated (reserved) during compile time" always confuses me. ...
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how to reset

I am developing a metro app with VS2012 and Javascript 27 Answers 27 ...
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Determining the current foreground application from a background task or service

...es() method as this returns all sorts of system rubbish from my experience and you'll get multiple results which have RunningAppProcessInfo.IMPORTANCE_FOREGROUND. Use getRunningTasks() instead This is the code I use in my service to identify the current foreground application, its really easy: Ac...
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Lombok added but getters and setters not recognized in Intellij IDEA

I am using IntelliJ IDEA on ubuntu. I added lombok.jar into my project and installed the Lombok plugin for IDEA. I have access to the annotations but the getters and setters aren't generated. I get the same errors I would get if I tried accessing a getter or setter method that doesn't exist. W...
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PostgreSQL error 'Could not connect to server: No such file or directory'

...n your postgres directory, probably /usr/local/var/postgres/ remove this and start server. Check - https://github.com/mperham/lunchy is a great wrapper for launchctl. share | improve this answer ...