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Android Facebook integration with invalid key hash

...h key through a command prompt is working on the first time only. I don't know the reason. I have also got the same problem. So I tried it through programmatically. Follow these steps: Paste the following code in oncreate(). try { PackageInfo info = getPackageManager().getPackageInfo( ...
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Is if(items != null) superfluous before foreach(T item in items)?

... @CodeInChaos: Ah, I see your point now. When the compiler can detect that the "foreach" is iterating over a List<T> or an array then it can optimize the foreach to use value-type enumerators or actually generate a "for" loop. When forced to enumerate ove...
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Why are static variables considered evil?

...n't be tested, then it IS bad design; because if I can't test it, I can't know that it works. Would you buy a car if the salesperson told you "The design of this model prevents it from being tested, so I don't know if it actually runs"? Testability is so crucial for software (as well as cars), tha...
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What does the “yield” keyword do?

... print(i) 0 1 4 Here it's a useless example, but it's handy when you know your function will return a huge set of values that you will only need to read once. To master yield, you must understand that when you call the function, the code you have written in the function body does not run. The ...
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How to allow download of .json file with ASP.NET

...this answer is still getting a lot of traffic even though IIS6 is very old now. Hopefully you're using something newer, so I wanted to mention that if you have a newer IIS7 or newer version see @ProVega's answer below for a simpler solution for those newer versions. ...
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Android Studio: Module won't show up in “Edit Configuration”

... version of gradle, Facets have been removed, you can directly add modules now. right click on project > open Module settings > Add module ( "+" sign at the top ) > Phone and Tablet Application (Now you can create a new module and configure it). ...
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Most popular screen sizes/resolutions on Android phones [closed]

...tioned various resolution sizes in mdpi, hdpi, xhdpi and xxhdpi like that. Now i going to develop fully images app. I get image from designer, I need to asking him for which resolution size of images in mdpi, hdpi, xhdpi and xxhdpi. Please help me. Thanks in advance. – Sakthi ...
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How to remove a Gitlab project?

... I believe now a days "Dangerous Settings" replaced with "Advanced settings". Just expand "Advanced settings" row you will find "Remove Project" button at the bottom of the page. – Ajit Kumar Dubey ...
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EOFError: end of file reached issue with Net::HTTP

...happens only on multiple calls using the same XMLRPC::Client instance! So now I'm re-instantiating my client at each call and it just works:| share | improve this answer | f...
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How to change the cursor into a hand when a user hovers over a list item?

... In light of the passage of time, as people have mentioned, you can now safely just use: li { cursor: pointer; } share | improve this answer | follow ...