block

问题 Is it possible to create a block variable as selector accepting parameters, and to pass it to performSelector:withObject:? Currently, writing some tests and want to write a self contained method with all related checking. Need to pass a block, receive the param in it and do some checking in that block. I'm looking for something like: ... SEL blockAsSelector = ^{(NSString *param){NSLog(@"Passed param = %@", param);}} [self performSelector:blockAsSelector withObject

问题 I am new on magento I am currently working on a custom module for magento2 and I want to use an external php library (PHPMailer) within a Block file. my project files structure: ModuleFolder ---etc . . ---Block ------- Main.php ---lib ------- PHPMailer . . I tried to include the PHPMailer class within my block main.php using: require_once(__DIR__."/../lib/PHPMailer/src/PHPMailer.php"); and for the class declaration i used : $mail = new PHPMailer(); also i tried to include the PHPMailer

问题 I'm trying to create a script what permits me to select a few lines and create a virtualedit block around it; 1 column after the longest line. This is my code function! VirtualEdit() let EndLine = line("'>") set virtualedit = all let maxlength = max(map(range(line("'<"), line("'>")), "virtcol([v:val, '$'])"))-1 call cursor(1,maxlength+1) normal "^Q".EndLine."jc<space><ESC>" set virtualedit = '' endfunction What it must do is 1) Control the longest line in my selection (maxlength). 2) Put the

问题 this is Nsr.. I need some help about using private frameworks, i have checked almost all the links and articles about PF, but it didn't help me whatsoever. Iv also looked into Github but didn't get the required answer/result. I want to build an app regarding iPhone messaging. i want my phone not to recieve any SMS/MMS for a certain time(whenever i launch my app). Iv looked into Chatkit framework, but its not even my Private Framework's folder.. I am a beginner in using private API, actually

问题 Recently I have been developing an app which requires the following code: /** Unfriends the user with the specified UID */ func removeFriend(_ userID: String, completion: CompletionHandler? = nil) { CURRENT_USER_FRIENDS_REF.document(userID).delete { (error) in guard error == nil else{ completion?(error) return } self.users.document(userID).collection(NameFile.Firebase.UserDB.friends).document(AppStorage.PersonalInfo.uid).delete(completion: completion) } } The problem arises in nesting these

问题 In Jenkins, we can block a job A if job B is running using Build blocker plugin . Similarly or in some fashion , I would like a job, for ex: another_dumb_job to NOT run / (wait and let it sit in queue) if there are any in-progress jobs running on any user selected slave(s) until those slaves are free again. For ex: I don't want to run a Job (which will delete bunch of slaves either offline/online -- using a downstream job or via calling some groovy/scriptler script) until any of those slave(s

问题 I just downloaded xcode 7 GM and trying to call the method enumerateObjectsUsingBlock of NSArray with iOS 9 but it shows the following error at build time. Incompatible block pointer types sending 'void (^)(SKSpriteNode *__strong, NSUInteger, BOOL *)' to parameter of type 'void (^ _Nonnull)(SKNode * _Nonnull __strong, NSUInteger, BOOL * _Nonnull)' This is the Apple documentation about enumerateObjectsUsingBlock method: - (void)enumerateObjectsUsingBlock:(void (^)(ObjectType obj, NSUInteger

问题 I am running the android app HelloFacebookSample from Facebook on my phone. The native Facebook app is NOT installed. When I try to login via my WiFi network the login process stalls at > D/FacebookSDK.WebDialog(6404): Webview loading URL: https://m.facebook.com/dialog/oauth?display=touch&client_id=XXX38988221028&scope=&type=user_agent&redirect_uri=fbconnect%3A%2F%2Fsuccess < ...and all I get is this blank white dialog popup with the close button (x) in the upper left corner. So far so bad,

问题 It seems as though double-brace initialization increases overhead. Does using braces inside of a method also reduce performance? eg. public class DoIReducePerformanceToo { public void aMethod() { { // Is it a bad idea to use these? } } } I've taken a look at Java's grammar and it seems that this is classified as a block: Block: { BlockStatements } BlockStatements: { BlockStatement } BlockStatement: LocalVariableDeclarationStatement ClassOrInterfaceDeclaration [Identifier :] Statement but I'm

问题 I've created an API in my site in PHP Now I want to protect it because I don't want that other sites and/or users can call it from a website that it isn't mine The calls can be made only from my site How can I do? Thanks. 回答1: You can just use this at the start of your API if($_SERVER['REMOTE_ADDR'] != '127.0.0.1'){ die; } It will kill any API attempts that aren't being called from your server. Edit Or if you want users to be able to call the API, you can gave them an API key, that you will