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IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager

... Please check my answer here. Basically I just had to : @Override protected void onSaveInstanceState(Bundle outState) { //No call for super(). Bug on API Level > 11. } Don't make the call to super() on the saveInstanceState method. This was messing t...
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Python argparse ignore unrecognised arguments

Optparse, the old version just ignores all unrecognised arguments and carries on. In most situations, this isn't ideal and was changed in argparse. But there are a few situations where you want to ignore any unrecognised arguments and parse the ones you've specified. ...
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How can I safely encode a string in Java to use as a filename?

...m with escape sequences. The reverse of the above encoding should be equally straight-forward to implement. share | improve this answer | follow | ...
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What is an example of the simplest possible Socket.io example?

...ovided this answer. That being said, here is the original answer updated small-small for the newer API. Just because I feel nice today: index.html <!doctype html> <html> <head> <script src='/socket.io/socket.io.js'></script> <script> ...
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What do 'real', 'user' and 'sys' mean in the output of time(1)?

... time; User and Sys refer to CPU time used only by the process. Real is wall clock time - time from start to finish of the call. This is all elapsed time including time slices used by other processes and time the process spends blocked (for example if it is waiting for I/O to complete). User is t...
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Zooming MKMapView to fit annotation pins?

...ew.h: // Position the map such that the provided array of annotations are all visible to the fullest extent possible. - (void)showAnnotations:(NSArray *)annotations animated:(BOOL)animated NS_AVAILABLE(10_9, 7_0); share ...
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PHP: If internet explorer 6, 7, 8 , or 9

...mp;& $B['v'] <= 8) { // Browsers IE 8 and below } else { // All other browsers } share | improve this answer | follow | ...
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How to install trusted CA certificate on Android device?

I have created my own CA certificate and now I want to install it on my Android Froyo device (HTC Desire Z), so that the device trusts my certificate. ...
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What is the JavaScript convention for no operation?

... "function" // returns true It can be invoked as a function and essentially does nothing as shown here: setTimeout(function() { console.log('Start: ', Date.now()); Function.prototype(); console.log('End : ', Date.now()); }, 1000); Although this is a "true noop" since...
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How to create a directory if it doesn't exist using Node.js?

... using *Sync methods is usually a no-no: don't want to block the event loop – Max Heiber Feb 13 '17 at 21:23 16 ...