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back button callback in navigationController in iOS

...l and add an event handler UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@”back” style:UIBarButtonItemStyleBordered target:self action:@selector(handleBack:)]; self.navigationItem.leftBarButtonItem = backButton; [backButton release]; } - (void) handleBack:(id)sender { //...
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How to play a local video with Swift?

...scussion Video Player @code self.videoPlayer = [[VideoPlayer alloc] initVideoPlayerWithURL:someURL playerView:self.playerView]; [self.videoPlayer prepareToPlay]; self.videoPlayer.delegate = self; //optional //after when required play item [self.vide...
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When should a class be Comparable and/or Comparator?

...of the uses of both Comparator and comparable: sysdotoutdotprint.com/index.php/2017/03/28/… – mel3kings Mar 28 '17 at 3:49 ...
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Grep not as a regular expression

I need to search for a PHP variable $someVar . However, Grep thinks that I am trying to run a regex and is complaining: 6 ...
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How to change the default encoding to UTF-8 for Apache?

... In .htaccess add this line: AddCharset utf-8 .html .css .php .txt .js This is for those that do not have access to their server's conf file. It is just one more thing to try when other attempts failed. As far as performance issues regarding the use of .htaccess I have not seen t...
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How can I generate an MD5 hash?

...perly, I ended up missing 0s in the hash. This one seems to be the same as PHP has. source: http://m2tec.be/blog/2010/02/03/java-md5-hex-0093 share | improve this answer | fo...
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What are the differences between a multidimensional array and an array of arrays in C#?

...which is the base address of the array. A multidimensional array therefore allocates a continuous memory block, while a jagged array does not have to be square, e.g. jagged[1].Length does not have to equal jagged[2].Length, which would be true for any multidimensional array. Performance Performance ...
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Best way to read a large file into a byte array in C#?

... performance to % Time in GC. If the chunks are larger than 85K, you'll be allocating to the Large Object Heap(LOH) which will require a collection of all generations to free up (this is very expensive, and on a server will stop all execution while it's going on). Additionally, if you have a ton of...
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What exactly is an Assembly in C# or .NET?

... http://www.codeguru.com/columns/csharp_learning/article.php/c5845 An assembly is a file that is automatically generated by the compiler upon successful compilation of every .NET application. It can be either a Dynamic Link Library or an executable file. It is generated only once ...
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Remove a cookie

...'s not enough to set it to expire anytime in the past, as computed by your PHP server. This is because client computers can and often do have times which differ from that of your server. The best practice is to overwrite the current cookie with a blank cookie which expires one second in the future ...