selector

How to use a selector to change an ImageButton image?

由 旧时模样 提交于 2019-12-09 20:37:57
问题 How do I make an ImageButton image change its image when you press it? 回答1: I hope you find this helpful. This can all be done in the XML. 1) Import your images for both pressed and unpressed states into the res/drawable- whichever folder 2) Make your selectors. Right click on a drawable folder and select New/Android xml file. Put in the name eg "ok_button_selector.xml" and choose "selector" as the root element from the menu below. You will need to create a different selector for each button

Android GridView imperfection, how to remove extra white space to the right

由 大城市里の小女人 提交于 2019-12-09 17:46:32
问题 I have a GridView based calendar. I have the following XML layout with the selector set to null thus android:listSelector="@null" in accordance with advise I have got from this site. Now I am getting a few pixels wide strip to the right of the GridView. Why? I have tried everything I can but to avail. Here is my XML layout: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="match_parent" android:orientation=

Get Raw HTML of Node in JQuery

由 柔情痞子 提交于 2019-12-09 14:35:00
问题 I have used $("#parent").html() to get the inner html of #parent , but how do I get the html of the parent itself? The use case is, I grab an input node like this: var field = $('input'); I would like to be able to get the raw html of that node ( <input type='text'> ) with something like field.html() , but that returns empty. Is this possible? 回答1: Or you could create add an JQuery function like this: jQuery.fn.outerHTML = function(s) { return (s) ? this.before(s).remove() : jQuery("<p>")

jquery select all elements except a div and its children

由 百般思念 提交于 2019-12-09 11:22:44
问题 I have this html/css code: <body> <!-- BEGIN: HEADER AREA --> <?php require("snippets/header_area.php"); ?> <!-- END: HEADER AREA --> <div id = "presentation_area"> <div id = "submenu_area"> <div id = "sliding_menu_area"> </div> <div id = "tags"> <div id = "1"> <img src = "lang/el/images/1.png" /> </div> <div id = "2"> <img src = "lang/el/images/2.png" /> </div> <div id = "3"> <img src = "lang/el/images/3.png" /> </div> <div id = "4"> <img src = "lang/el/images/4.png" /> </div> </div> </div>

Javascript: How to check if element is visible?

由 青春壹個敷衍的年華 提交于 2019-12-09 07:31:25
i'm using the lightweight zepto.js framework and now I need to test if an element on the page is visible or not … this my case: A button triggers the function show_guides() . function show_guides() { $('#guides').toggle(); if ( $('#guides').is(':visible') ) { // does not work //$.cookie('guides_visible', 'true'); console.log("visible"); } else { console.log("invisible"); //$.cookie('guides_visible', null); } } If the $('#guides') are visible I want to save a cookie and if they are not I want to get rid of it. However zepto.js doesn't support selectors like :visible so I have to find a

Xcode spurious warnings for “Creating selector for nonexistent method 'compare:'”

由 余生长醉 提交于 2019-12-09 01:16:41
问题 Here's a snippet: NSArray *a = [@[@"a", @"b", @"c"] sortedArrayUsingSelector:@selector(compare:)]; XCode (5.0) is giving me the following warning: Creating selector for nonexistent method 'compare:' How do I eliminate these warnings? 回答1: This warning is relevant for you and can be disabled in the build settings of your project. Set the value to NO and the warning is disabled. -Wselector Warn if multiple methods of different types for the same selector are found during compilation. The check

SelectorImpl is BLOCKED

由 五迷三道 提交于 2019-12-08 19:28:54
问题 I use a lot of client sends a request to the server about 1000 requests per second a client, the server's CPU soon rose to 600% (8 cores), and always maintain this state. When I use jstack printing process content, I found SelectorImpl is BLOCKED state. Records are as follows: nioEventLoopGroup-4-1 prio=10 tid=0x00007fef28001800 nid=0x1dbf waiting for monitor entry [0x00007fef9eec7000] java.lang.Thread.State: BLOCKED (on object monitor) at sun.nio.ch.EPollSelectorImpl.doSelect(Unknown Source)

CSS Sibling Selector w/ Hover

由 て烟熏妆下的殇ゞ 提交于 2019-12-08 17:09:22
问题 So here's what I'm trying to do: I have two icons side by side, and underneath I have two spans that are hidden. When I mouse-over an icon I want the corresponding span to appear. ------------ HTML Part ----------------- <span class="icons"><!--ICONS--> <li class="oneLI">one</li> <li class="twoLI">two</li> </span> <span class="popups"> <span class="one"></span> <span class="two"></span> </span> --------------CSS Part -------------- span.popups span.one,span.popups span.two{opacity:0; span

How to selector ID textbox array using jquery

由 爷，独闯天下 提交于 2019-12-08 16:11:59
问题 I have code HTML <input id="info[text1]" type="text" value="1"/> <br> <input id="info[text2]" type="text" value="2"/> <br> I want to select id='info[text1]' using jquery but I can't, so can you help me! 回答1: You have to escape the brackets with \\ $("#info\\[text1\\]") see http://api.jquery.com/category/selectors/ (second paragraph) 回答2: Try it this way. $('input[id="info[text1]"]') 回答3: Try this: $('#info\\[text1\\]'); http://jsfiddle.net/UwrVn/ 来源： https://stackoverflow.com/questions

“Any” boolean function in jquery

由 只谈情不闲聊 提交于 2019-12-08 15:05:32
问题 Is there any easy way to check if any elements in a jquery selector fulfill a condition? For instance, to check if any textboxes in a form are empty (kind of pseudo, not real jquery): $('input.tb').any(val().length == 0); Note: I know it could be done with a helper method, just curious if it was possible in one statement. 回答1: jQuery has a lot of pseudo selectors built in: http://api.jquery.com/category/selectors/jquery-selector-extensions/ You can also build your own with the filter()
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