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getActivity() returns null in Fragment function
...ity is a context so if you can simply check the context is an Activity and cast it if necessary.
@Override
public void onAttach(Context context) {
super.onAttach(context);
Activity a;
if (context instanceof Activity){
a=(Activity) context;
}
}
...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
...://superuser.com/questions/361435/i-have-compiled-imagemagick-on-my-centos-and-rmagick-wont-install
I exported the imagemagick path by adding
$ export PKG_CONFIG_PATH="/opt/local/lib/pkgconfig:$PKG_CONFIG_PATH"
to my ~/.bash_profile, sourcing the new profile, then running:
gem install rmagick
...
Error Domain=NSURLErrorDomain Code=-1005 “The network connection was lost.”
I have an application which works fine on Xcode6-Beta1 and Xcode6-Beta2 with both iOS7 and iOS8. But with Xcode6-Beta3, Beta4, Beta5 I'm facing network issues with iOS8 but everything works fine on iOS7. I get the error "The network connection was lost." . The error is as follows:
...
ASP.NET MVC Ajax Error handling
... Wouldn't a Status code of 500 be kind of wrong? To quote this chap broadcast.oreilly.com/2011/06/… : "Failing to realize that a 4xx error means I messed up and a 5xx means you messed up" - where I is the client and you is the server.
– Chris Nevill
Oct 7 '...
Site does not exist error for a2ensite
... Weird! This used to work fine without an extension in Ubuntu 12.04 and 12.10.
– FloatingRock
Mar 26 '14 at 11:21
...
ViewPager with previous and next page boundaries
I'm designing a view with multiple pages. I want edges of previous and next pages to be show like below and implement a 2 finger swipe to switch between pages.
...
Automating the InvokeRequired code pattern
... {
action(obj);
}
}
The template allows for flexible and cast-less code which is much more readable while the dedicated delegate provides efficiency.
progressBar1.InvokeIfRequired(o =>
{
o.Style = ProgressBarStyle.Marquee;
o.MarqueeAnimationSpeed = 40;
});
...
Java switch statement: Constant expression required, but it IS constant
...s except for assignment operators, ++, -- or instanceof, and e) allow type casts to primitive types or String only.
Note that this doesn't include any form of method or lambda calls, new, .class. .length or array subscripting. Furthermore, any use of array values, enum values, values of primitive ...
How to split a file into equal parts, without breaking individual lines? [duplicate]
...equal except for the last), without breaking the line? Using the split command in Unix, lines may be broken in half. Is there a way to, say, split up a file in 5 equal parts, but have it still only consist of whole lines (it's no problem if one of the files is a little larger or smaller)? I know I c...
Why is isNaN(null) == false in JS?
...
But then at least a string is cast into a NaN object, as isNaN("text") returns true.
– Hanno Fietz
Sep 22 '08 at 15:45
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