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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I gave my iPhone app a black status bar by adding the UIStatusBarStyleOpaqueBlack / UIStatusBarStyle to the Info.plist file. It works great most of the time. The black status bar shows when the app is running and when the Default.png is being shown. The issue is when I quit the app by pressing the home button, the status bar becomes a white block while the iPhone's standard quit animation is taking place. I haven't seen this issue with any other apps that use a black status bar. Am I missing something? 回答1: Set the background color of your

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I currently use WPF Ribbon Window and enable Aero in current window like the following photo. I like to hide title that is "Pattern Tester" because there is not enough of space to show it. But I still need original windows control box and current title (even it will be hidden) that will be shown in task manager and other ralated program like task switcher and taskbar. 回答1: I accidentally found the answer for this question when I read & download source code in thread about WPF Title Bar Text Hardly Readable in RibbonWindow . The easiest way

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am working on a application, and my job just is to develop a sample Python interface for the application. The application can provide XML-based document, I can get the document via HTTP Get method, but the problem is the XML-based document is endless which means there will be no end element. I know that the document should be handled by SAX, but how to deal with the endless problem? Any idea, sample code? 回答1: This is what I use for parsing an endless xml stream which I get from a remote computer (in my case I connect over a socket and use

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Why isn't the function [System.IO.Path]::Combine taking my first parameter? PS C:\WINDOWS\system32> $g_basePath F:\Dev\OneClickTools PS C:\WINDOWS\system32> [Tests.Utils]::CUSTOMASSEMBLY_TEST CustomLogic.dll PS C:\WINDOWS\system32> [System.IO.Path]::Combine($g_basePath, "\bin\debug", [Tests.Utils]::CUSTOMASSEMBLY_TEST) \bin\debug\CustomLogic.dll The third command shows that only the second and third parameters were concatenated or is it using an empty string as $g_basePath ..? 回答1: Just omit the leading backslash on your second path: [System

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This is follow up question from Does argument dependent lookup only search namespaces or classes too? , In which @David Rodríguez said "ADL will look in the enclosing namespace of the type, and also inside the type itself" . I may have got him wrong what he tried to say but I was trying this example: struct foo{ static void bar(foo* z){} }; int main(){ foo* z; bar(z); } It doesn't compiles, producing the error " ‘bar’ was not declared in this scope " . Is it the case that ADL doesn't considers the static member function?. I mean in the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: struct Foo { void setBar(bool bar_) { bar = bar_; } bool bar; }; int main() { Foo f; f.setBar("true"); } The above code compiles successfully due to type conversion, even though a char array is passed where a bool is expected. Is it possible to cause this code to fail compilation? (C++03 solution preferred, since the compiler at my workplace is ancient.) I have looked at the following related questions on StackOverflow, but they don't quite address this problem. Preventing implicit conversion in C++ , Why does the compiler choose bool over

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I've got a base class and then several derived classes. I would like to overload the "<<" operator for these derived classes. For normal operators, i.e. '+', virtual functions do the trick. What I understand to be the standard convention is to declare friend ostream & operator <<( ostream & out , MyClass & A ); within my class and then define the function after the class. A priori I would think adding virtual to the above definition would make it work, but after some thought (and errors from my compiler) I realize that doesn't make

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead This is the error I got, I searched for solutions but I didn't find how to solve it. This is my code: styles.xml <!-- Base application theme. --> <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> <item name="colorPrimary">@color/myPrimaryColor</item> <item name="colorPrimaryDark">@color/myPrimaryDarkColor</item> <item name="colorAccent">@color

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: For a code like this: class foo { protected: int a; public: class bar { public: int getA() {return a;} // ERROR }; foo() : a (p->param) }; I get this error: invalid use of non-static data member 'foo::a' currently the variable a is initialized in the constructor of foo . if I make it static, then it says: error: 'int foo::a' is a static data member; it can only be initialized at its definition However I want to pass a value to a in the constructor. What is the solution then? 回答1: In C++, unlike (say) Java, an instance of a nested class doesn

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have used library to generate barcode. Bar code is generated but problem is that how can i save that generated image? Here i am giving my code i have used: In controller: function add($bar_code) { $postData['bar_code'] = $this->set_barcode($postData['bar_code']); } function set_barcode($code) { $this->load->library('zend'); $this->zend->load('Zend/Barcode'); $bar_code = Zend_Barcode::render('code128', 'image', array('text'=>$code), array('imageType' => 'jpg'))->draw(); return $bar_code; } How can i save the image of generated bar code?