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What APIs are used to draw over other apps (like Facebook's Chat Heads)?

How does Facebook create the Chat Heads on Android? What is the API to create the floating views on top of all other views? ...
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Count how many records are in a CSV Python?

...ll just 2 lines out of this CSV as you can see. What I have been trying to do is store in a variable the total number of rows the CSV also. ...
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CocoaPods Errors on Project Build

... Means cocoapods is not installed properly. run sudo gem install cocoapods – asgoth Oct 20 '13 at 20:06 4 ...
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When are C++ macros beneficial? [closed]

...each style macro can make your code much easier to read and maintain. I've done it, it works. – postfuturist Oct 25 '08 at 21:01 9 ...
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Remove all but numbers from NSString

...nks! For other beginners, you can create your own custom NSCharacterSet by doing NSCharacterSet *myCharSet = [NSCharacterSet characterSetWithCharactersInString:@"charactersGoHere"] – guptron Mar 20 '13 at 17:25 ...
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Command line CSV viewer? [closed]

... 1 2 3 4 5 1 5 Note that the substitution of ,, for , , is done twice. If you do it only once, 1,,,4 will become 1, ,,4 since the second comma is matched already. share | improve thi...
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Is it possible to display inline images from html in an Android TextView?

... If you have a look at the documentation for Html.fromHtml(text) you'll see it says: Any <img> tags in the HTML will display as a generic replacement image which your program can then go through and replace with real images. If you don't wa...
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How can I scale the content of an iframe?

... @JonathanM - cf meta.stackexchange.com/questions/75043/…, did I do something wrong here? – lxs Mar 19 '12 at 11:54 ...
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How can I check if a background image is loaded?

...images in top of your page and then set it in CSS — so images are start downloading before css file — it's called preloading. – jcubic Feb 20 '11 at 17:05 ...
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Difference between View and table in sql

...ng a new view of it. Say you have a database with salaries and you need to do some complex statistical queries on it. Instead of sending the complex query to the database all the time, you can save the query as a view and then SELECT * FROM view ...