selector

问题 Got some quick questions on using a non blocking selector - answering any of the below would be greatly appreciated: I have just ben learning about the selector (java NIO model) and want to clarify some facts. Picked up most of the key points from tutorials as well as the SO question: Java NIO: Selectors so: from the question linked above, a Server socket channel is registered to listen for accept, when accepted a channel is registered for read and once read it is registered for write. How

问题 I want to change my status bar app icon when the user switches from default to dark mode and vice versa (using Swift 3). Here’s what i have so far: func applicationDidFinishLaunching(_ aNotification: Notification) { DistributedNotificationCenter.default().addObserver(self, selector: #selector(darkModeChanged(sender:)), name: "AppleInterfaceThemeChangedNotification", object: nil) } ... func darkModeChanged(sender: NSNotification) { print("mode changed") } Unfortunately, it’s not working. What

问题 I am trying to perform selector with object in swift 3.0 I have a selector which have one parameter func imageSelected(aImage : UIImage) and I am calling it like viewC.perform(Selector.init("imageSelected:"), with: image, afterDelay: 0.1) But the app crashes with error that the selector is not defined. 回答1: Here's something I always do when I encounter selectors in swift: Ignore the parameters, just use the name. You used this: imageSelected: What is that : doing there? Delete it! Just use

问题 My objective is to print a text file line by line and append the line number at the beginning. Like so: <div id="wrapper"> <div class="line">1: asdf</div> <div class="line">2: asdfasdf</div> <div class="line">3: asdfasdfasdfasdf</div> <div class="line">4: asdf</div> </div> n is a variable in CSS responsible for an element's index within its parent and within a child selector you can perform operations on it, eg. nth-child(2n + 3 ) Is there any way to grab this variable and insert it as plain

问题 I have been searching for the straight answer to this question for quite some time now. What I want to know is how to implement a custom highlight on a ListView that will only hightlight (over top, preferably) a sub layout of the ListView item (in this case, I'm looking to highlight the RelativeLayout of the item). Here is a screen shot of what I've got going on:Fail Here is the code for list_item.xml: <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout

问题 I have been searching for the straight answer to this question for quite some time now. What I want to know is how to implement a custom highlight on a ListView that will only hightlight (over top, preferably) a sub layout of the ListView item (in this case, I'm looking to highlight the RelativeLayout of the item). Here is a screen shot of what I've got going on:Fail Here is the code for list_item.xml: <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout

问题 I have been searching for the straight answer to this question for quite some time now. What I want to know is how to implement a custom highlight on a ListView that will only hightlight (over top, preferably) a sub layout of the ListView item (in this case, I'm looking to highlight the RelativeLayout of the item). Here is a screen shot of what I've got going on:Fail Here is the code for list_item.xml: <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout

问题 I'm working on Squarespace for a client that needs to add special blog post that are styled different. The problems is that this template doesn't allow it and the client can't code, so I'm trying to do it with custom CSS in a way that prevents errors. All this "special" post have a link with href that contains the word "special", so I'm styling them with the css selector: [href*="Special"] { style }. My question is if the client add more special post like "Special landscape", "Special Images"

问题 I'm working on Squarespace for a client that needs to add special blog post that are styled different. The problems is that this template doesn't allow it and the client can't code, so I'm trying to do it with custom CSS in a way that prevents errors. All this "special" post have a link with href that contains the word "special", so I'm styling them with the css selector: [href*="Special"] { style }. My question is if the client add more special post like "Special landscape", "Special Images"

问题 I need to post data to a php page and then I'd like to get the text of a certain div that is in the response but I can't seem to set things up correctly. I'm not too good with jQuery but I can usually figure things out fairly quickly... I've been at this for a minute and have tried everything I have found... I think I am just missing the right combination of stuff. $.post("process.php", data , function (response) { var w = window.open(); $(w.document.body).html(response); console.log(typeof