radio

I am developing one application where i want to play live stream radio. I have an url using which i will stream the radio and play. I have a play button by clicking which i want to play the radio. For that, i have written some code which is not at all working. Here is my code: mp = new MediaPlayer(); try { mp.setOnPreparedListener(this); Log.d("Testing", "start111"); mp.setAudioStreamType(AudioManager.STREAM_MUSIC); String url="xxxxxx"; mp.setDataSource(url); mp.prepareAsync(); } catch (IllegalArgumentException e) { e.printStackTrace(); Log.d("Testing", "Exception ::: 1111 "+e.getMessage()); }

What is the best way to validate to ensure at least one in every group is checked, so in the following example groups are name1 , name2 , name3 ? Example <input type="radio" name="name1"> <input type="radio" name="name1"> <input type="radio" name="name1"> <input type="radio" name="name2"> <input type="radio" name="name2"> <input type="radio" name="name2"> <input type="radio" name="name3"> <input type="radio" name="name3"> <input type="radio" name="name3"> I know I can wrap a div around each one and then check each radio button in the div, but I am looking for a more dynamic solution. So, if in

Is it possible to make a cell phone transmit arbitrary radio waves at a certain frequency? Or does the Mobile OS only allow higher level access? If the answer is 'no' as I expect it is, is there any way to make a phone talk to another electronic device remotely without handshakes and the like? Probably not - as EFraim indicated, there'll be regulatory frameworks in place to say that devices of type A must use frequencies in the range X-Z with no more than a certain power output. Additionally there's physical issues as well as to be able to broadcast at different frequencies requires different

I have a situation where i do need unchecked radio button value. Is it possible to send unchecked radio button value through form in php? If yes, then can you please explain? <input type="hidden" name="myField" value="false" /> <input type="checkbox" name="myField" value="true" /> both fields have the same name, if the checkbox isn't checked, the hidden field will be submitted, if the checkbox is checked, it will virtually override the the hidden field. On a side note, are your sure radio buttons wouldn't be better suited to your needs, you will be able to see the definite answer for each

html上的属性被称为attribute ,可以通过 setAttribute 和getAttribute 来设置和获取。 checkbox 上的 checked 属性 在第一次设置的时候会立马变成选中状态。如: 1. 在html上直接设置 。<input type="checkbox" checked> 2. 通过 setAttribute("checked","")任意值来设置，即可变成选中状态。但是只在第一次生效，后面无论怎么设置值，chebox的选中状态都不会改变。 通过js改变checkbox 的状态可以通过 dom.checked=true|false 来设置。 dom 的属性 property 可以直接通过 dom.来访问 dom上的property 某一些可以和 attribute 对应上有些完全没有关系，这个待研究。 例如jquery 的attr 对应的就是html 上的attribute, prop 就是对应 dom上的属性 总结Vue 中checkbox　　 　　 在<input type="checkbox" v-model="ball" value="足球">足球<input type="checkbox" v-model="ball" value="篮球">篮球<input type="checkbox" v-model="ball" value="头球

Jquery给基本控件的取值、赋值 Jquery给基本控件的取值、赋值 TEXTBOX: var str = $('#txt').val(); $('#txt').val("Set Lbl Value"); //文本框，文本区域： $("#text_id").attr("value",'');//清空内容 $("#text_id").attr("value",'test');// 填充内容 LABLE: var str = $('#lbl').text(); $('#lbl').text("Set Lbl Value"); /*获取单选按钮的值*/ var valradio = $("input[@type=radio][@checked]").val(); /*获取一组名为(items)的radio被选 中项的值*/ var item = $('input[@name=items][@checked]').val(); /* 获取复选框的值*/ var checkboxval = $("#checkbox_id").attr("value")； /* 获取下拉列表的值*/ var selectval = $('#select_id').val(); //多选框checkbox： $("#chk_id").attr("checked",'');//使其未勾选 $("#chk_id"

前端之Jquery jQuery jQuery介绍 jQuery是一个轻量级的、兼容多浏览器的JavaScript库。 jQuery使用户能够更方便地处理HTML Document、Events、实现动画效果、方便地进行Ajax交互，能够极大地简化JavaScript编程。它的宗旨就是：“Write less, do more.“ jQuery的优势 一款轻量级的JS框架。jQuery核心js文件才几十kb，不会影响页面加载速度。 丰富的DOM选择器,jQuery的选择器用起来很方便，比如要找到某个DOM对象的相邻元素，JS可能要写好几行代码，而jQuery一行代码就搞定了，再比如要将一个表格的隔行变色，jQuery也是一行代码搞定。 链式表达式。jQuery的链式操作可以把多个操作写在一行代码里，更加简洁。 事件、样式、动画支持。jQuery还简化了js操作css的代码，并且代码的可读性也比js要强。 Ajax操作支持。jQuery简化了AJAX操作，后端只需返回一个JSON格式的字符串就能完成与前端的通信。 跨浏览器兼容。jQuery基本兼容了现在主流的浏览器，不用再为浏览器的兼容问题而伤透脑筋。 插件扩展开发。jQuery有着丰富的第三方的插件，例如：树形菜单、日期控件、图片切换插件、弹出窗口等等基本前端页面上的组件都有对应插件，并且用jQuery插件做出来的效果很炫

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I need to make a Cocoa radio button programatically, can anyone explain how this might be done or post a good link that shows how to do this well. 回答1: Here's a sample code for creating radio buttons programatically: //create the radio button prototype NSButtonCell *proto = [[NSButtonCell alloc] init]; [proto setTitle:@"Options"]; [proto setButtonType: NSRadioButton]; //define the matrix size where you'll put the radio buttons NSRect matrixRect = NSMakeRect(20.0,20.0,125.0,125.0); //define the matrix specifying that it will contain radio

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Using Struts2 , I have a very simple radio tag like following <s:radio label="correctOption" name="correctAnswer" list=" #{'1':'1','2':'2','3':'3','4':'4'}" value="questionVo.correctAnswer"/> questionVo.correctAnswer returns 2 . So I want the second radio button to be preselected but it is not happening. I even tried: <s:radio label="correctOption" name="correctAnswer" list=" #{'1':'1','2':'2','3':'3','4':'4'}" value="%{1}"/> But that does not work either. What am I doing wrong? 回答1: Remove the value attribute from the jsp. Then in your Java