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NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder

... those conditions and change the app flow: public static boolean isSamsung_4_2_2() { String deviceMan = Build.MANUFACTURER; String deviceRel = Build.VERSION.RELEASE; return "samsung".equalsIgnoreCase(deviceMan) && deviceRel.startsWith("4.2.2"); } Then in the activity's onCreat...
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What is a “callback” in C and how are they implemented?

...y're implemented using function pointers. Here's an example: void populate_array(int *array, size_t arraySize, int (*getNextValue)(void)) { for (size_t i=0; i<arraySize; i++) array[i] = getNextValue(); } int getNextRandomValue(void) { return rand(); } int main(void) { int m...
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Why does the MongoDB Java driver use a random number generator in a conditional?

... laws it is a trivial observation that this piece of code amounts to if (!_ok && Math.random() <= 0.1) return res; The commit that originally introduced this logic had if (_ok == true) { _logger.log( Level.WARNING , "Server seen down: " + _addr, e ); } else if (Math.random() < 0...
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What is the difference between String.Empty and “” (empty string)?

...private hidebysig instance string foo() cil managed { .maxstack 8 L_0000: ldstr "foo" L_0005: ret } .method private hidebysig instance string bar() cil managed { .maxstack 8 L_0000: ldstr "bar" L_0005: ldsfld string [mscorlib]System.String::Empty L_000a: call string [msc...
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Modular multiplicative inverse function in Python

... If you happen to be using sympy, then x, _, g = sympy.numbers.igcdex(a, m) does the trick. – Lynn Sep 16 '16 at 18:15 add a comment ...
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How to make the python interpreter correctly handle non-ASCII characters in string operations?

...e(u"Â ", u"") But in Python 3, just use quotes. In Python 2, you can from __future__ import unicode_literals to obtain the Python 3 behavior, but be aware this affects the entire current module. s.replace(u"Â ", u"") will also fail if s is not a unicode string. string.replace returns a new string ...
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What is the Java equivalent of PHP var_dump?

PHP has a var_dump() function which outputs the internal contents of an object, showing an object's type and content. 11 An...
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Naming cookies - best practices [closed]

... appname_meaningfulname share | improve this answer | follow | ...
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Looking to understand the iOS UIViewController lifecycle

...nd viewDidLayoutSubviews go on this flowchart? – Max_Power89 Dec 18 '14 at 16:40 7 This diagram ...
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Completion handler for UINavigationController “pushViewController:animated”?

...rface UINavigationController (CompletionHandler) - (void)completionhandler_pushViewController:(UIViewController *)viewController animated:(BOOL)animated completion:(void (^)(void))completion; @end Implementation: #import "UIN...