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Difference between Activity Context and Application Context

...mably has some information about the current activity that is necessary to complete those calls. If you show the exact error message, might be able to point to what exactly it needs. But in general, use the activity context unless you have a good reason not to. ...
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How to delete every other line in Vim?

... You can use a macro for this. Do the following. Start in command mode. Go to the beginning of the file by pressing gg. Press qq. Click arrow down and press dd after. Press q. Press 10000@q PS: To go to command mode just press Escape a couple of times. ...
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Pure virtual destructor in C++

... Edit: fixing the declaration to be more conformant, compiled with http://www.comeaucomputing.com/tryitout/ share | improve this answer | follow | ...
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Run an app on a multiple devices automatically in Android Studio

I have a multiple Android devices connected to the computer. When I try to run the app I'm developing, the Android Studio always prompt me to choose the device. Is there any way to deploy the app on a multiple devices automatically - by clicking Run or even better with a shortcut? ...
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How to iterate over arguments in a Bash script

I have a complex command that I'd like to make a shell/bash script of. I can write it in terms of $1 easily: 8 Answers ...
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Clearing a string buffer/builder after loop

... I think the performance benefit comes from the string mutability, not from saving the instantiation. here's a quick test of 1e8 iterations: inside loop (2.97s): ideone.com/uyyTL14w, outside loop (2.87s): ideone.com/F9lgsIxh – Mark Ell...
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css ellipsis on second line

...S. My source when I was looking for the exact same thing just now: http://www.quirksmode.org/css/textoverflow.html (Quirksmode ftw!) EDIT If the good CSS gods will implement http://www.w3.org/TR/css-overflow-3/#max-lines we can haz this in pure CSS using fragments (new) and max-lines (new). Also s...
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What is WCF RIA services?

...es/ If you want to use RIA Services, they have been open sourced: http://www.openriaservices.net/blog/posts/ share | improve this answer | follow | ...
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CSS selector for “foo that contains bar”? [duplicate]

...; they have been proposed multiple times but I know of no existing or forthcoming standard including them. You are correct that you would need to use something like jQuery or use additional class annotations to achieve the effect you want. Here are some similar questions with similar results: Is...
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ViewPager with previous and next page boundaries

... Quoting myself from a blog post on this subject: The third approach comes from Dave Smith, co-author of the well-regarded book Android Recipes. He went in a very different direction, using a custom container that disabled children clipping to show more than one page at a time. His published s...