keycode

appium新手入门（11）―― appium API 之键盘操作 模拟键盘输入也是非常重要的操作。这一小节来介绍那些关于键盘的操作。 1、sendKeys()方法 方法： sendKeys() 用法： driver.findElements( By.name (“Name”)).sendKeys(“jack”); 2、pressKeyCode()方法 除此之外，appium扩展提供了pressKeyCode()方法。该方法Android特有。 方法： pressKeyCode() 发送一个键码的操作。需要一个入参。 driver.pressKeyCode(29); // 字母“a” 如果想点击Android的HOME键应该怎么实现的呢？如下 java driver.pressKeyCode(AndroidKeyCode.HOME); 下面提供Android keycode参考表： 电话键 KEYCODE_CALL 拨号键 5 KEYCODE_ENDCALL 挂机键 6 KEYCODE_HOME 按键Home 3 KEYCODE_MENU 菜单键 82 KEYCODE_BACK 返回键 4 KEYCODE_SEARCH 搜索键 84 KEYCODE_CAMERA 拍照键 27 KEYCODE_FOCUS 拍照对焦键 80 KEYCODE_POWER 电源键 26 KEYCODE

According to MDN, we should most definitely not be using the .keyCode property. It is deprecated: https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/keyCode On W3 school, this fact is played down and there is only a side note saying that .keyCode is provided for compatibility only and that the latest version of the DOM Events Specification recommend using the .key property instead. The problem is that .key is not supported by browsers, so what should we using? Is there something I'm missing? Miguel Lattuada You have three ways to handle it, as it's written on the link you shared.

既然想实现 按两次返回键 退出程序 有两个关键词 一个是 “返回键”，再一个是“退出程序” 1）先说“退出” 退出相信大家都会 finish(); System.exit(0); 为了确保不出现问题，两种退出都写上。 2）再来说说“返回键” 需要获得硬件上的按键响应 onKeyDown(int keyCode,KeyEvent event) 然后分别作判断 keyCode是否为返回键，event是否为按下 3）完成这些之后，再做一个“两次”的判断 当然可以 int 一个 i 然后做 i++ 的操作 但是这里用的时间间隔做判断条件 每次按下按键，调用System.currentTimeMillis()获取当前时间毫秒数 做差，判断是否大于一个给定的（2000）毫秒数 废话不多说，代码如下 [java] view plaincopy private long exitTime = 0; @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_DOWN) { if ((System.currentTimeMillis() - exitTime) > 2000)

Our app is crashing (it says "application has stopped) after we longpress the home button on samsung galaxy s3 (the longpress button is used to popup the multitasking screen/app switch dialog) we do not have this problem on our another testing device htc evo 3d so what is the keycode for this "action" ? and how can we disable this function ? This code sadly does not work: public boolean onKeyDown(int keyCode, KeyEvent event) { if(keyCode == KeyEvent.KEYCODE_APP_SWITCH) { System.exit(0); return false; } return super.onKeyDown(keyCode, event); } 来源： https://stackoverflow.com/questions/26554207

I need to know when the user presses the escape key when watching an HTML5 video in fullscreen mode. Unfortunately any configured listeners on the document don't apply since when the user is watching an HTML5 video in fullscreen mode the system focus is on the native video player rather than the browser. An alternative is listening for when focus reverts back from the native video player to the browser, but I'm unsure as to how I would capture this. document.addEventListener('keydown', function (e) { console.log(e.keyCode); }, false); The above successfully logs to the console when I press

I would like to ask you about something that does not work for me ? If you could help me please. Html: <input type='text' class='blabla' onkeyup="function(id, e);"> Javascript Code: function(id, e) { var comment = $(".blabla").val();`<br /> // alert(message); WORK alert(e.keyCode) // DOES NOT WORK } With minimum modifications , <input type='text' class='blabla' onkeyup="doSomething(e)"> function doSomething(e){ var comment = $(".blabla").val(); var id = this.id; alert(e.keyCode) // Now it should work } The first parameter in the doSomething function will be the event object. The this variable

I am trying to disable all other characters from being entered in text input. Since to get the $ you have to press the shift -key and the 4 -key. I am not sure how you would get the keyCode for somthing like this? Nick Key codes relate only to keys. $ is a character, achieved through two keys, Shift and 4. There is no key code explicitly for $ when using onkeydown Edit: It was pointed out by Edward that onkeypress uses key combinations, and does have keycode's for combinations. Learn something new every day :) Here's some code , edited from the onkeydown example provided by the MDN, to detect

首先，我们要知道，键盘对应的ASCII码（keycode码）。 点击此处查看（转载） 。方向键，左，上，右，下，分别为37，38，39，40。 然后，当按下键盘按键的时候，用event.keyCode获取按键的keycode码。用switch函数case分支，对应键值执行相关命令。 先写一个div <div id="box"></div> 写样式 (一定要position，不然无法移动) #box{ width: 50px; height: 50px; background: red; position:absolute; top:20%; left: 20%; } js（注意大小写) var box = document.querySelector("#box"); onkeydown = function (event) { switch (event.keyCode) { case 37: box.style.left = box.offsetLeft - 20 + "px"; break; //向左移动 case 38: box.style.top = box.offsetTop - 20 + "px"; break; //向上移动 case 39: box.style.left = box.offsetLeft + 20 + "px"; break; //向右移动