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How to implement the Android ActionBar back button?

... In my situation I was looking for a way to not call onCreate of the parent when returning to it. To do this, I used your implementation, but called finish() instead of NavUtils.navigateUpFromSameTask(this). finish() calls my onStart instead of onCreate which was more ideal...
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Keyboard shortcut to comment lines in Sublime Text 2

...ment. If you go into Preferences->Key Bindings - Default, you can find all the shortcuts, below are the lines for commenting. { "keys": ["ctrl+/"], "command": "toggle_comment", "args": { "block": false } }, { "keys": ["ctrl+shift+/"], "command": "toggle_comment", "args": { "block": true } }, ...
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Center content of UIScrollView when smaller

... the scroll view, everything works fine. However, when the image becomes smaller than the scroll view, it sticks to the top left corner of the scroll view. I would like to keep it centered, like the Photos app. ...
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C# if/then directives for debug vs release

...em only executed if a certain symbol is defined. The compiler would remove all calls to those methods if the symbol is not defined: [Conditional("DEBUG")] void PrintLog() { Console.WriteLine("Debug info"); } void Test() { PrintLog(); } ...
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How to add calendar events in Android?

... how do I programmatically add an event to the user's calendar? Which calendar? Is there a common API they all share? No, no more than there is a "common API they all share" for Windows calendar apps. There are some common data formats (e....
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com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

... Communications link failure, then it means that the DB isn't reachable at all. This can have one or more of the following causes: IP address or hostname in JDBC URL is wrong. Hostname in JDBC URL is not recognized by local DNS server. Port number is missing or wrong in JDBC URL. DB se...
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How do I make a redirect in PHP?

...FC 7231 which had replaced the old RFC 2616, where only absolute URLs were allowed. Status Codes PHP's "Location"-header still uses the HTTP 302-redirect code, this is a "temporary" redirect and may not be the one you should use. You should consider either 301 (permanent redirect) or 303 (other). No...
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jQuery remove options from select

I have a page with 5 selects that all have a class name 'ct'. I need to remove the option with a value of 'X' from each select while running an onclick event. My code is: ...
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How do I create 7-Zip archives with .NET?

... If you can guarantee the 7-zip app will be installed (and in the path) on all target machines, you can offload by calling the command line app 7z. Not the most elegant solution but it is the least work. ...
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Quick-and-dirty way to ensure only one instance of a shell script is running at a time

... signal but just checks if a process with the given PID exists. Also the call to trap will ensure that the lockfile is removed even when your process is killed (except kill -9). share | improve thi...