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Difference between objectForKey and valueForKey?
...orKey can be intensely slow - it's currently a major bottleneck in my iPad app, so slow that replacing it with a "standard" dictionary made the app noticeably faster. Something very wrong with KVC on iOS, and I'll never use it again - not worth the drop in performance, and having to re-write it the ...
How can I get a precise time, for example in milliseconds in Objective-C?
...olute_time() can be used to get precise measurements.
See http://developer.apple.com/qa/qa2004/qa1398.html
Also available is CACurrentMediaTime(), which is essentially the same thing but with an easier-to-use interface.
(Note: This answer was written in 2009. See Pavel Alexeev's answer for the simpl...
Bootstrap 3 and Youtube in Modal
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Autoplay is against the Youtube API terms. Just got an app rejected using webview in the Android app marketplace...
– giorgio79
Sep 16 '16 at 20:48
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Detect Android phone via Javascript / jQuery
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The navigator.userAgent approach doesnt work on samsung galaxy devices. There's no 'Android' in the browser spec.
– AsafK
Feb 6 '14 at 0:18
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Enabling auto layout in iOS 6 while remaining backwards compatible with iOS 5
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@ImreKelényi How would you submit this to the app store? I'm not super familiar with the process, but I thought you submit one zipped archive of your .app file. Does having two targets make that process harder at all? Thanks.
– Crystal
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How to build an APK file in Eclipse?
...ng Eclipse , the APK file goes on the emulator. But I want to upload my application to a real device. Is there a tool to build an APK file?
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How do I check if a string contains another string in Swift?
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Apple's documentation says: An NSRange structure giving the location and length in the receiver of the first occurrence of aString. Returns {NSNotFound, 0} if aString is not found or is empty (@""). So maybe just checking for...
How do I get the different parts of a Flask request's url?
...want to detect if the request came from the localhost:5000 or foo.herokuapp.com host and what path was requested. How do I get this information about a Flask request?
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Android: how to make keyboard enter button say “Search” and handle its click?
I can't figure this out. Some apps have a EditText (textbox) which, when you touch it and it brings up the on-screen keyboard, the keyboard has a "Search" button instead of an enter key.
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How to turn on/off ReactJS 'development mode'?
...ng a minified copy of the development build of React. When deploying React apps to production, make sure to use the production build which skips development warnings and is faster. See fb.me/react-minification for more details.
react-dom, redux, react-redux behave similarly. Redux displays a warnin...