在javascript代码中添加按钮
我想在javascript代码中添加一个按钮,它使用Tizen sdk存储Gear 2的心率。在我的代码中,主div插入到javascript代码中。我正在使用以下代码:在javascript代码中添加按钮,javascript,tizen,Javascript,Tizen,我想在javascript代码中添加一个按钮,它使用Tizen sdk存储Gear 2的心率。在我的代码中,主div插入到javascript代码中。我正在使用以下代码: //HTML CODE: <div id="chartContainer" class="chart"></div> //JAVASCRIPT CODE: var chart = new CanvasJS.Chart("chartContainer",{ title :{ fo
//HTML CODE:
<div id="chartContainer" class="chart"></div>
//JAVASCRIPT CODE:
var chart = new CanvasJS.Chart("chartContainer",{
title :{
fontColor: "#ccc",
text: "Heart Rate"
},
backgroundColor: "#222",
data: [{
color: "#CD5C5C",
type: "line",
dataPoints: dps
}]
});
var lastSecond = -1;
var updateChart = function (heartrate) {
time = new Date().getTime() - initial;
console.log("[" + time + ", " + heartrate + "]");
temp = heartrate;
console.log("tempVar"+ temp);
tizen.filesystem.resolve(
'documents',
function(dir){
documentsDir = dir; dir.listFiles(onsuccess,onerror);
}, function(e) {
console.log("Error" + e.message);
}, "a"
);
dps.push({
x: time / 1000.0,
y: heartrate
});
if (dps.length > dataLength)
{
dps.shift();
}
var second = Math.round(time / 1000.0);
console.log(history.length);
if(lastSecond != second) {
// TODO use avg heart rate instead of smapshot.
history.push({
x: second,
y: heartrate
});
if(history.length > historyDataLength) {
history.shift();
}
lastSecond = second;
}
if(dps.length >= dataLength) {
chart.render();
}
var hrchart = "<center>" + heartrate + "bps</center><table width='100%' cellpadding=4px>";
for(var i = history.length - historyDataLength; i >= 0 && i < history.length; i++) {
hrchart += "<tr><td align='right' width='50%'>" + history[i].x + "s</td><td width='50%'>" + history[i].y + "bps</td></tr>";
}
hrchart += "</table>";
$('#textbox').html(hrchart);
};
updateChart(0);
updateChart(250);
for(var i = 0; i < dataLength; i++) {
updateChart(0);
}
这意味着按下后退按钮时关闭应用程序。但是,档位2只有一个按钮。这个按钮是钥匙吗?对于人力资源管理,我使用以下方法。对于在文件中写入,我使用:
function onsuccess(files) {
var testFile = null;
try{
testFile = documentsDir.createFile("test.txt");
if (testFile !== null) {
testFile.openStream(
"a",
function(fs){
fs.write(temp+"\n\n\n");
fs.close();
}, function(e){
console.log("Error " + e.message);
}, "UTF-8"
);
}
}
catch (e) { // file already exist -> append content
testFile = documentsDir.resolve('test.txt');
if(testFile !== null)
{
testFile.openStream(
"a",
function(fs){
fs.write(temp+"\n\n\n");
fs.close();
}, function(e){
console.log("Error " + e.message);
}, "UTF-8"
);
}
}
}
function onerror(error) {
console.log("The error " + error.message + " occurred when listing the files in the selected folder");
}
及
我还是个初学者,但我知道如何打开和关闭窗口的基本知识。也许这能帮你
<button onclick="openWin()">Open "myWindow"</button>
<button onclick="closeWin()">Close "myWindow"</button>
<script>
var myWindow;
function openWin() {
myWindow = window.open("", "myWindow", "width=200, height=100");
myWindow.document.write("<p>This is 'myWindow'</p>");
}
function closeWin(){
myWindow.close();
}
打开“我的窗口”
关闭“我的窗口”
var-myWindow;
函数openWin(){
myWindow=window.open(“,”myWindow“,”宽度=200,高度=100”);
myWindow.document.write(“这是‘myWindow’”);
}
函数closeWin(){
myWindow.close();
}
1。在JS代码中创建按钮
var b1 = document.createElement("BUTTON"); // Create Button
var b2 = document.createElement("BUTTON");
// Assign text to your button
b1.textContent = "Start";
b2.textContent = "Exit";
// Register click handlers to call respective functions
b1.onclick = function() {/*Code here*/};
b2.onclick = function() {/*Code here*/};
// Append them in your DOM i.e to show it on your page.
// Suppose to append it to an existing element in your page with id as "appp".
var attachTo = document.getElementById("appp");
attachTo.appendChild(b1);
attachTo.appendChild(b2);
2。TIZENHWKEY
在档位上,tizenhwkey”表示“向下滑动”手势和“向上滑动”手势
向下滑动可作为后退键,类似于在手机上的工作方式向上滑动可作为菜单按钮,类似于在手机上的工作方式
您可以使用下面的代码来处理我上面提到的两种手势
document.addEventListener('tizenhwkey', function(e) {
if(e.keyName == "menu") {
}
if(e.keyName == "back") {
// you need to write exit statement
tizen.application.getCurrentApplication().exit();
}
}
正如您所看到的,chartContainer的整个代码都在javascript中。因此,在javascript代码中编写按钮非常方便。是的,我有将hrm存储在文件中的代码,当我将gear与pc连接时,我得到了一个带有hrm值的文件。避免Tizenwkey当我东倒西歪时,它似乎根本不会关闭应用程序。此外,我想找到一种方法来关闭传感器设备,因为我打开了我的应用程序,hrm的传感器绿灯不停止功能。最后一件事是,我正在使用write函数将hrm写入文件。但是,它似乎不识别“\n”。关于那件事有什么线索吗?你提到过tizen.application.getCurrentApplication().exit()吗;语句内部的键处理。检查已编辑的代码。最初我只是编写代码结构。我以为你会像你想做的那样写逻辑。另外,关于你的第三个问题,你还没有澄清我的疑问。当你说集成时,你是指与galaxy device?集成-它由运行在基于Android的三星移动设备上的主机端应用程序和可穿戴端小部件组成。单机版-它只包含在基于Tizen的三星Gear设备上运行的可穿戴侧小部件。我运行应用程序,将Gear与pc连接,只是为了通过hrm获取文件,因此是单机版。
var b1 = document.createElement("BUTTON"); // Create Button
var b2 = document.createElement("BUTTON");
// Assign text to your button
b1.textContent = "Start";
b2.textContent = "Exit";
// Register click handlers to call respective functions
b1.onclick = function() {/*Code here*/};
b2.onclick = function() {/*Code here*/};
// Append them in your DOM i.e to show it on your page.
// Suppose to append it to an existing element in your page with id as "appp".
var attachTo = document.getElementById("appp");
attachTo.appendChild(b1);
attachTo.appendChild(b2);
document.addEventListener('tizenhwkey', function(e) {
if(e.keyName == "menu") {
}
if(e.keyName == "back") {
// you need to write exit statement
tizen.application.getCurrentApplication().exit();
}
}