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Was PreferenceFragment intentionally excluded from the compatibility package?

...cated methods are deprecated as of Android 3.0. They are perfectly fine on all versions of Android, but the direction is to use PreferenceFragment on Android 3.0 and higher. Can anyone tell me whether this was intentional? My guess is it's a question of engineering time, but that's just a gue...
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How do I use valgrind to find memory leaks?

...o come to this question and are still new to Linux—you might have to install Valgrind on your system. sudo apt install valgrind # Ubuntu, Debian, etc. sudo yum install valgrind # RHEL, CentOS, Fedora, etc. Valgrind is readily usable for C/C++ code, but can even be used for other languages wh...
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Django Rest Framework File Upload

... Use the FileUploadParser, it's all in the request. Use a put method instead, you'll find an example in the docs :) class FileUploadView(views.APIView): parser_classes = (FileUploadParser,) def put(self, request, filename, format=None): fi...
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Is there a performance difference between a for loop and a for-each loop?

... iterator or index variable completely. The resulting idiom applies equally to collections and arrays: // The preferred idiom for iterating over collections and arrays for (Element e : elements) { doSomething(e); } When you see the colon (:), read it as “in.” Thus, the loop ab...
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如何实现phpcms和discuz的Cookie同步 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...on uc_user_synlogin($uid) { $uid = intval($uid); $return = uc_api_post('user', 'synlogin', array('uid'=>$uid)); return $return; } 修改为 function uc_user_synlogin($uid) { require_once './include/common.inc.php'; global $_CGLOBAL; $uid = intval($uid); ...
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ucenter应用之间cookietime不能传送问题解决 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...on uc_user_synlogin($uid) { $uid = intval($uid); $return = uc_api_post('user', 'synlogin', array('uid'=>$uid)); return $return; } 修改为 function uc_user_synlogin($uid) { require_once './include/common.inc.php'; global $_CGLOBAL; $uid = intval($uid); ...
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Using generic std::function objects with member functions in one class

... A non-static member function must be called with an object. That is, it always implicitly passes "this" pointer as its argument. Because your std::function signature specifies that your function doesn't take any arguments (<void(void)>), you must bind the ...
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Mathematical functions in Swift

... UIKit, Cocoa, Foundation, all valid choices. – erdekhayser Nov 27 '14 at 20:26 ...
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What is the Java equivalent of PHP var_dump?

...for free. It is done with convention rather than language constructs. In all data transfer classes (and maybe even in all classes you write...), you should implement a sensible toString method. So here you need to override toString() in your Person class and return the desired state. There are u...
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How do I use HTML as the view engine in Express?

...will work, but to serve out HTML, there is no need to use a view engine at all, unless you want to set up funky routing. Instead, just use the static middleware: app.use(express.static(__dirname + '/public')); share ...