selector

问题 I'm new with Java NIO, after reading some tutorials, I've tried my own to write a simple NIO server and client. My server just does a simple thing is listen from client and print to console, and the client just connects to server and send to it 3 messages "Hello". The problem is my server listens and works well with the 3 messages, after that it should be blocked and continue listening, but it does not, there's no blocking, it runs it while loop infinitely. Here's my server and client: Server

问题 I'm trying to add the :hover selector to a class when hovering over a different div. Basically there are 2 divs forming a button. The top part is the part that changes color when hovered over and the bottom part is simply an image. Currently, the hover only works for the top part, but I want the :hover selector to be called when hovering over the image too. Basically it doesn't function as a single button but rather two buttons. This is what I have but obviously this doesn't work. $(".module

问题 I have several <p> elements inside a <div> . The <div> has overflow-y:auto; which is hiding some <p> elements from view unless you scroll down. See http://jsfiddle.net/qnuxs/1/ How can i write a jQuery selector that only select <p> elements that are fully(not partially) visible and not hidden from view with overflow. So from the jsfiddle example i provided the selector should give me the first 2 <p>'s (000 and 111) since they are the only tags fully in view. Note: not all <p> tags necessary

问题 I have a series of images shown in a Gallery. WHen the user clicks on one, they are taken to a different view. I want to give some feedback to the user when they perform the click, just before the view changes. I defined a selector thus: <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_pressed="true" android:drawable="@drawable/pic_frame_pressed" /> <item android:drawable="@drawable/pic_frame" /> <!-- default -->

问题 I'm using ez-checkbox plugin, which simply wraps a checkbox into a div so checkboxes look better. <div class="ez-checkbox ez-checked"> <input type="checkbox" checked autocomplete="off" class="ezmark ez-hide ez-init"> </div> So I have many of these and I want check them all on click. Which of these click handlers is the best from the performance point of view: First - find all inputs, filter out already checked ones, trigger click event for each element so that plugin done its job. oPhotos

问题 Using $(document).popover({ selector: '.selector' }); ignores any data-* attributes specified in target elements. For example <a class="selector" title="bla" data-content="some html" data-html="true">link</a> popover will skip data-html attribute. Proof: http://jsfiddle.net/YsEqb/ The question is: How make bootstrap take into account data-* attributes in case of delegated attachment ({ selector: '.selector' }) ? UPD This was confirmed as bug and fixed. Version 3.0.0 won't have this bug. 回答1:

问题 The docs say: Declaration: class func perform(_ selector: Selector, onTarget target: Any) -> SKAction selector The selector of the method to call. I am uncertain what a selector of a method is. Hence the question. It seems like it would be the name of the method/function, but creates (in me) uncertainty because it's never described as being this, so I kind of think it might be something else, something more profound, perhaps. I'm presupposing perform(_:onTarget) is a way for a part of code to

问题 I have a script which is purely JS which takes code and inserts it into an iframe: var html = "<p>Some <strong>HTML</strong> to insert</p>" var iframe = document.getElementById('contentsframe'); iframe = (iframe.contentWindow) ? iframe.contentWindow : (iframe.contentDocument.document) ? iframe.contentDocument.document : iframe.contentDocument; iframe.document.open(); iframe.document.write(html); iframe.document.close(); I was wanting to create a jQuery plugin as I am using this bit of code a

问题 I've got a UIButton in an Objective-C iOS Class, called StickerClass. The class has a public instance of a UIButton called 'theView'. In the constructor of StickerClass, I set the initial properties such as frame, layer properties and subviews, and the target for when it's clicked on, using: [theView addTarget:self action:@selector(aMethod:) forControlEvents:UIControlEventTouchUpInside]; There's a top level class, called TopViewController, which creates an instance of StickerClass and then,

问题 I'm trying to pass a CGRect: SEL frameSel = NSSelectorFromString(@"setFrame:"); CGRect rect = CGRectMake(10, 10, 200, 100); [object performSelector:frameSel withObject:rect ]; But this does not compile I also tried: SEL frameSel = NSSelectorFromString(@"setFrame:"); CGRect rect = CGRectMake(10, 10, 200, 100); NSValue * value = [NSValue valueWithCGRect:rect]; [object performSelector:frameSel withObject:value ]; Actually, this does compile but when I debug, the frame is not setted correctly: po