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Fragment in ViewPager using FragmentPagerAdapter is blank the second time it is viewed

... I had the same issue. Changing the parent class of my PageAdapter from android.support.v4.app.FragmentPagerAdapter to android.support.v4.app.FragmentStatePagerAdapter solve my ViewPager display issue on "second time"! sh...
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What is the difference between Serializable and Externalizable in Java?

What is the difference between Serializable and Externalizable in Java? 11 Answers ...
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How to make exe files from a node.js app?

... There a few alternatives, both free and commercial. I haven't used any of them but in theory they should work: Iexpress (native windows tool) Quick Batch File Compiler (commercial) BoxedApp Packer "Advanced" Batch To EXE Converter" (freeware) Most will requ...
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How do I detect “shift+enter” and generate a new line in Textarea?

...ndToStart', re); return rc.text.length; } return 0; } And then replacing the textarea value accordingly when Shift + Enter together , submit the form if Enter is pressed alone. $('textarea').keyup(function (event) { if (event.keyCode == 13) { var content = this.val...
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What does “abstract over” mean?

...ala literature, I encounter the phrase "abstract over", but I don't understand the intent. For example , Martin Odersky writes ...
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BackgroundWorker vs background Thread

...a form that has an infinite (while(true)) loop. In this loop I use WaitHandle.WaitAny to keep the thread snoozing until something of interest happens. One of the event handles I wait on is a " StopThread " event so that I can break out of the loop. This event is signaled when from my overridden ...
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How to use Session attributes in Spring-mvc

...)request.getSession().setAttribute("cart",value); return "testJsp"; } and you can get it from controller like this : ShoppingCart cart = (ShoppingCart)session.getAttribute("cart"); Make your controller session scoped @Controller @Scope("session") Scope the Objects ,for example you have user...
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How to make PDF file downloadable in HTML link?

...ook</a> which outputs a custom header, opens the PDF (binary safe) and prints the data to the user's browser, then they can choose to save the PDF despite their browser settings. The pdf_server.php should look like this: header("Content-Type: application/octet-stream"); $file = $_GET["fil...
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Python element-wise tuple operations like sum

Is there anyway to get tuple operations in Python to work like this: 12 Answers 12 ...
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Handle ModelState Validation in ASP.NET Web API

...ded for this are System.Net.Http, System.Net System.Web.Http.Controllers, and System.Web.Http.Filters. – Christopher Stevenson Jan 15 '13 at 22:38 ...