大约有 47,000 项符合查询结果(耗时:0.0435秒) [XML]

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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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Generate all permutations of a list without adjacent equal elements

... return output Proof of correctness For two item types, with counts k1 and k2, the optimal solution has k2 - k1 - 1 defects if k1 < k2, 0 defects if k1 = k2, and k1 - k2 - 1 defects if k1 > k2. The = case is obvious. The others are symmetric; each instance of the minority element prevents ...
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What Xcode keyboard shortcuts do you use regularly? [closed]

...er then navigate to source files. However now I find the open quickly command better (cmd-shift-O , type a few chars, return) – Robert Nov 30 '12 at 12:45 6 ...
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Passing variables in remote ssh command

I want to be able to run a command from my machine using ssh and pass through the environment variable $BUILD_NUMBER 7 Ans...
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How to write to a file in Scala?

...gement. Edit (September 2011): since Eduardo Costa asks about Scala2.9, and since Rick-777 comments that scalax.IO commit history is pretty much non-existent since mid-2009... Scala-IO has changed place: see its GitHub repo, from Jesse Eichar (also on SO): The Scala IO umbrella project consi...
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What is the difference between sigaction and signal?

I was about to add an extra signal handler to an app we have here and I noticed that the author had used sigaction() to set up the other signal handlers. I was going to use signal() . To follow convention I should use sigaction() but if I was writing from scratch, which should I choose? ...
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How can I correctly prefix a word with “a” and “an”?

... Download Wikipedia Unzip it and write a quick filter program that spits out only article text (the download is generally in XML format, along with non-article metadata too). Find all instances of a(n).... and make an index on the following word and all ...
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How do you get a query string on Flask?

...ry string itself. "Query string" means everything after the question mark and before the pound sign, if one is present. – Lyndsy Simon Aug 2 '12 at 16:32 46 ...
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Onclick javascript to make browser go back to previous page?

... What's the action="action" part for? And is it valid html?? – ban-geoengineering Apr 26 '17 at 18:34 ...
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Concurrent.futures vs Multiprocessing in Python 3

...ures , which appear to be some advanced combination of the older threading and multiprocessing modules. 1 Answer ...