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How to determine when Fragment becomes visible in ViewPager

...ment becomes visible in ViewPager You can do the following by overriding setUserVisibleHint in your Fragment: public class MyFragment extends Fragment { @Override public void setUserVisibleHint(boolean isVisibleToUser) { super.setUserVisibleHint(isVisibleToUser); if (isVis...
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#ifdef replacement in the Swift language

...ample: #if DEBUG let a = 2 #else let a = 3 #endif Now, you must set the "DEBUG" symbol elsewhere, though. Set it in the "Swift Compiler - Custom Flags" section, "Other Swift Flags" line. You add the DEBUG symbol with the -D DEBUG entry. As usual, you can set a different value when in Deb...
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AngularJS: Is there any way to determine which fields are making a form invalid?

I have the following code in an AngularJS application, inside of a controller, which is called from an ng-submit function, which belongs to a form with name profileForm : ...
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ADO.NET DataRow - check for column existence

... editor after snippets, if snippets enabled if (StackExchange.settings.snippets.snippetsEnabled) { StackExchange.using("snippets", function() { createEditor(); }); } else { createEditor(); ...
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How can I programmatically determine if my app is running in the iphone simulator?

... Already asked, but with a very different title. What #defines are set up by Xcode when compiling for iPhone I'll repeat my answer from there: It's in the SDK docs under "Compiling source code conditionally" The relevant definition is TARGET_OS_SIMULATOR, which is defined in /usr/include/...
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How do I determine if a port is open on a Windows server? [closed]

I'm trying to install a site under an alternative port on a server, but the port may be closed by a firewall. Is there a way to ping out or in, on a specific port, to see if it is open? ...
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git log of a single revision

I have a commit c. I want to get the changeset of that exact commit c + metainformation and no other one. Is there a simpler way than git log -p c^..c to do that? ...
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How to properly compare two Integers in Java?

... are some non-obvious edge cases with autoboxing. I have my IDE (Eclipse) set to color anything being un-boxed in red, this has saved me from bugs on a few occasions. If you are comparing two Integers, use .equals, if you want to make your inequalities clear, write the cast in explicitly: if ((...
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In-place type conversion of a NumPy array

Given a NumPy array of int32 , how do I convert it to float32 in place ? So basically, I would like to do 6 Answers ...
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Android: android.content.res.Resources$NotFoundException: String resource ID #0x5

...is thrown when accessing the file. My file, cuvinte.txt is located into /assets/. Here is my code (i skipped the layout/xml part, which works fine): ...