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Fling gesture detection on grid layout

...| edited May 29 '13 at 13:06 Blundell 67.4k2929 gold badges182182 silver badges207207 bronze badges answ...
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Warning: The Copy Bundle Resources build phase contains this target's Info.plist file

... answered Jan 20 '12 at 19:06 MarcMarc 32411 silver badge99 bronze badges ...
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How do I avoid capturing self in blocks when implementing an API?

... If you're not using Automatic Reference Counting (ARC), you can do this: __block MyDataProcessor *dp = self; self.progressBlock = ^(CGFloat percentComplete) { [dp.delegate myAPI:dp isProcessingWithProgress:percentComplete]; } The __block keyword marks variables that can be modified inside th...
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How do exceptions work (behind the scenes) in c++

...xception { public: MyException() { } ~MyException() { } }; void my_throwing_function(bool throwit) { if (throwit) throw MyException(); } void another_function(); void log(unsigned count); void my_catching_function() { log(0); try { log(1); another_f...
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StringBuilder vs String concatenation in toString() in Java

...tes that this is optional. In fact, I just did a simple test with JRE 1.6.0_15 and I didn't see any compiler optimization in the decompiled class. – bruno conde Oct 7 '09 at 16:07 ...
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Lua简明教程 - 脚本技术 - 清泛IT论坛,有思想、有深度

...ble来管理全局变量的,Lua把这些全局变量放在了一个叫“_G”的Table里。我们可以用如下的方式来访问一个全局变量(假设我们这个全局变量名叫globalVar):_G.globalVar _G["globalVar"]复制代码 我们可以通过下面的方式来遍历...
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Creating C macro with ## and __LINE__ (token concatenation with positioning macro)

...PASTE2(x, y) TOKENPASTE(x, y) #define UNIQUE static void TOKENPASTE2(Unique_, __LINE__)(void) {} Then, __LINE__ gets expanded to the line number during the expansion of UNIQUE (since it's not involved with either # or ##), and then the token pasting happens during the expansion of TOKENPASTE. It ...
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relative path in require_once doesn't work

... Use __DIR__ to get the current path of the script and this should fix your problem. So: require_once(__DIR__.'/../class/user.php'); This will prevent cases where you can run a PHP script from a different folder and therefo...
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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR

...r using it inside the block should be ok, but it still shows the warning. __block ASIHTTPRequest *request = [[ASIHTTPRequest alloc] initWithURL:... [request setCompletionBlock:^{ NSDictionary *jsonDictionary = [[CJSONDeserializer deserializer] deserialize:request.responseData error:nil]; r...
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What's the difference between globals(), locals(), and vars()?

... the same dict each time - it's attached to the stack frame object as its f_locals attribute. The dict's contents are updated on each locals() call and each f_locals attribute access, but only on such calls or attribute accesses. It does not automatically update when variables are assigned, and assi...