click

问题 If I need to assign a click function dynamically, is there a way to ensure the click function is only assigned once and not duplicated? this.click(function(){ alert('test'); }) 回答1: You can unbind the click event before you bind it again, that way you will only have one event attached to it: //assuming this is a jquery object. this.unbind("click"); this.click(function(){ alert("clicked once"); }); As of jQuery 1.7, click now uses .on (http://api.jquery.com/click/) so the correct code is now /

问题 If I need to assign a click function dynamically, is there a way to ensure the click function is only assigned once and not duplicated? this.click(function(){ alert('test'); }) 回答1: You can unbind the click event before you bind it again, that way you will only have one event attached to it: //assuming this is a jquery object. this.unbind("click"); this.click(function(){ alert("clicked once"); }); As of jQuery 1.7, click now uses .on (http://api.jquery.com/click/) so the correct code is now /

问题 How could I programmatically trigger a left-click event on the mouse? Thanks. edit: the event is not triggered directly on a button. I'm aiming for the Windows platform. 回答1: https://web.archive.org/web/20140214230712/http://www.pinvoke.net/default.aspx/user32.sendinput Use the Win32 API to send input. Update: Since I no longer work with Win32 API, I will not update this answer to be correct when the platform changes or websites become unavailable. Since this answer doesn't even conform to

问题 can anyone think of a good way to ignore the single click that comes with a double-click in Java ? I'm looking to have different behaviors for each such that: single-click paints crosshairs on the click point double-click selects an object on the screen, but should not paint crosshairs on the click point ... can anyone think of a way to do this ? Some sort of timer set-up maybe ? An ideas appreciated :-) <disclaimer> ...and yes, I know I'm committing a most heinous usability / UI faux pas. <

问题 I have come across an interesting bug (?) whereby if you embed the SVG using <use> as part of a link (an icon for example) – the icon itself does not register a click event in jQuery, but clicking the text does. I think this is due to SVG events not bubbling up? If you embed the SVG directly, the link triggers regardless of whether you click the text or the icon. A simple test case I created can be seen here: SVG <use> bug test case. 回答1: Use pointer-events: none; on the svg. It worked for me

问题 Ok I feel like I'm crazy... I'm looking at Mobile Safari on iOs 6.0. I can't seem to establish any rhyme or reason as to when tapping on an element will trigger click. In many cases, it seems I need to tap once to trigger a hover and then again to trigger a click. The Mobile Safari spec says : "... The flow of events generated by one-finger and two-finger gestures are conditional depending on whether or not the selected element is clickable or scrollable... A clickable element is a link, form

问题 I am using jQuery to load a page by AJAX using $.ajax (suppose test.html). Its a simple HTML document with a few buttons and associated animations upon clicking them (also using jQuery). The .click() properties associated are working fine when I load the page directly but the buttons fail to respond when I click them in the AJAX loaded version. Since I am too tires to actually explain all the glum that I am doing, I am simply writing all the code below, apologies for this. Here are the

问题 I want to detect click/touch event on my gameObject 2D. And this is my code: void Update() { if (Input.touchCount > 0) { Debug.Log("Touch"); } } Debug.Log("Touch"); does not show when I click on screen or my gameObject. 回答1: Short answer: yes, touch may be handled with Input.GetMouseButtonDown() . Input.GetMouseButtonDown() , Input.mousePosition , and associated functions work as tap on the touch screen (which is kind of odd, but welcome). If you don't have a multi-touch game, this is a good

问题 I have the following problem with this code: <button id="delete">Remove items</button> $("#delete").button({ icons: { primary: 'ui-icon-trash' } }).click(function() { alert("Clicked"); }); If I click this button, the alert show up two times. It's not only with this specific button but with every single button I create. What am I doing wrong? 回答1: Your current code works, you can try it here: http://jsfiddle.net/s4UyH/ You have something outside the example triggering another .click(), check

问题 I am writing an application to fully control the mouse click/movement. For instance, if I have the application running, form fully transparent, fullscreen, then if I click the mouse button, in normal case, it will bring the application in background in focus - I need to stop this from happening (i.e. clicking the button and nothing visible should happen on the screen), as I need to process all the mouse activity and send it out using this application. I need to allow 2 mouse to act