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UIRefreshControl on UICollectionView only works if the collection fills the height of the container

I'm trying to add a UIRefreshControl to a UICollectionView , but the problem is that the refresh control does not appear unless the collection view fills up the height of its parent container. In other words, unless the collection view is long enough to require scrolling, it cannot be pulled down...
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How to open a new tab using Selenium WebDriver?

...pen the link in new Tab. String selectLinkOpeninNewTab = Keys.chord(Keys.CONTROL,Keys.RETURN); driver.findElement(By.linkText("urlLink")).sendKeys(selectLinkOpeninNewTab); The code below will open empty new Tab. String selectLinkOpeninNewTab = Keys.chord(Keys.CONTROL,"t"); driver.findElement(By...
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Can you create nested WITH clauses for Common Table Expressions?

... While not strictly nested, you can use common table expressions to reuse previous queries in subsequent ones. To do this, the form of the statement you are looking for would be WITH x AS ( SELECT * FROM MyTable ), y AS ( SELECT * FROM x ) SELECT * FROM y...
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Chrome Dev Tools: How to trace network for a link that opens a new tab?

I want to trace the network activity that happens when I click on a link. The problem is that the link opens a new tab, and apparently the Dev Tools works per tab it was open for. "Preserve Log Upon Navigation" does not help. ...
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VIM + Syntastic: how to disable the checker?

... running :SyntasticCheck instead. For more, see :help syntastic-commands On another note: if Syntastic is slow for you consider trying ale as an alternative. Unlike Syntastic it runs asynchronously, so even if it's slow it shouldn't hinder you. ...
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What is the difference between lemmatization vs stemming?

... Short and dense: http://nlp.stanford.edu/IR-book/html/htmledition/stemming-and-lemmatization-1.html The goal of both stemming and lemmatization is to reduce inflectional forms and sometimes derivationally related forms of a word to a common base form. However, the two words differ in th...
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How to prevent errno 32 broken pipe?

Currently I am using an app built in python. When I run it in personal computer, it works without problems. 4 Answers ...
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Does it make sense to use Require.js with Angular.js? [closed]

...newbie to Angular.js and trying to understand how it's different from Backbone.js... We used to manage our packages dependencies with Require.js while using Backbone. Does it make sense to do the same with Angular.js? ...
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Why does changing 0.1f to 0 slow down performance by 10x?

... Welcome to the world of denormalized floating-point! They can wreak havoc on performance!!! Denormal (or subnormal) numbers are kind of a hack to get some extra values very close to zero out of the floating point representation. Operations on denormalized floating-point can be tens to hundreds of ...
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how to fire event on file select

... Use the change event on the file input. $("#file").change(function(){ //submit the form here }); share | improve this answer ...