javascript - Cordova 脚本未执行

标签 javascript ios cordova

我有一些脚本似乎没有执行但我不知道为什么,我正在尝试使用 IOS 模拟器和 safari 进行调试以查看日志。

这是index.html的内容

<html>
<head>
    <meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: https://ssl.gstatic.com 'unsafe-eval'; style-src 'self' 'unsafe-inline'; media-src *">
    <meta name="format-detection" content="telephone=no">
    <meta name="msapplication-tap-highlight" content="no">
    <meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width">
    <link rel="stylesheet" type="text/css" href="css/index.css">
    <title>Test</title>
</head>
<body>

    <div id="appContainer" class="app">
        <h1>Apache Cordova</h1>
        <div id="deviceready" class="blink">
            <p class="event listening">Connecting to Device</p>
            <p class="event received">Device is Ready</p>
        </div>
    </div>
    <script>
      alert('Wait!'); // is not working
    </script>
    <script type="text/javascript" src="cordova.js"></script>
    <script type="text/javascript" src="js/index.js"></script>
</body>

这是index.js的内容

alert("wait"); // That one is working, why ?

var app = {
// Application Constructor
initialize: function() {
    console.log("app init");  // not working
    this.bindEvents();
    console.log("app init end");  // not working
},
// Bind Event Listeners
//
// Bind any events that are required on startup. Common events are:
// "load", "deviceready", "offline", and "online".
bindEvents: function() {
    console.log("bind start");  // not working
    document.addEventListener("deviceready", this.onDeviceReady, false);
    document.addEventListener("click", this.onClick, false);
    console.log("bind end");  // not working
},
// deviceready Event Handler
//
// The scope of "this" is the event. In order to call the "receivedEvent"
// function, we must explicitly call "app.receivedEvent(...);"
onDeviceReady: function() {
    console.log("device start");
    app.receivedEvent("deviceready");
    document.getElementById("appContainer").addEventListener("click", this.onClick, false);
    document.getElementById("appContainer").addEventListener("touchstart", this.onClick, false);
    document.getElementById("appContainer").addEventListener("touchend", this.onClick, false);
    console.log("device end");
},
// Update DOM on a Received Event
receivedEvent: function(id) {
    var parentElement = document.getElementById(id);
    var listeningElement = parentElement.querySelector(".listening");
    var receivedElement = parentElement.querySelector(".received");

    listeningElement.setAttribute("style", "display:none;");
    receivedElement.setAttribute("style", "display:block;");

    console.log("Received Event: " + id);
},
onClick: function(e) {
    console.log("click"); // not working or it may be the eventlistener
},

};

console.log("init s"); // not working
app.initialize();
console.log("init e"); // not working

我不明白的是 1 - 为什么 index.html 中的 alert("Wait") 不起作用。 2 - 为什么 console.log 不工作执行设备启动、设备结束和接收到的事件:deviceready 3 - 为什么 app.initialize 似乎没有被执行(因为没有日志)但实际上被执行了,因为设备就绪事件被触发 4 - 为什么我在模拟器中触发点击时在 onClick 函数中看不到日志(如果设备就绪事件有效,点击、touchstart 和 touchend 应该无效?)

有人可以向我解释为什么似乎没有什么能正常工作吗?

我使用的是 cordova 5.3.1,几乎没有对 init 包进行任何修改。我尝试删除 ios 并再次添加它,但它没有任何改变。

感谢您的帮助

最佳答案

“控制台”全局是一个 Apache Cordova 插件。它只会在设备就绪时可用。看这里http://plugins.cordova.io/#/package/org.apache.cordova.console

试试这个

var app = {
    initialize: function() {
        console.log("app init");
        this.bindEvents();
        console.log("app init end");
    },
    // Bind Event Listeners
    bindEvents: function() {
        console.log("bind start");
        document.addEventListener("click", this.onClick, false);
        console.log("bind end"); 
    },
    onDeviceReady: function() {
        console.log("device start");
        app.initialize();
        app.receivedEvent("deviceready");
        document.getElementById("appContainer").addEventListener("click", this.onClick, false);
        document.getElementById("appContainer").addEventListener("touchstart", this.onClick, false);
        document.getElementById("appContainer").addEventListener("touchend", this.onClick, false);
        console.log("device end");
    },
    receivedEvent: function(id) {
        var parentElement = document.getElementById(id);
        var listeningElement = parentElement.querySelector(".listening");
        var receivedElement = parentElement.querySelector(".received");

        listeningElement.setAttribute("style", "display:none;");
        receivedElement.setAttribute("style", "display:block;");

        console.log("Received Event: " + id);
    },
    onClick: function(e) {
        console.log("click"); // not working or it may be the eventlistener
    },

};

//initialize app on device ready
document.addEventListener("deviceready", app.onDeviceReady, false);

至于您的“警报”之谜,window.alert 兼容性已被证明在 Cordova 上下文中是不可靠的。我建议你使用

navigator.notification.alert

它是插件对话框的一部分 https://www.npmjs.com/package/cordova-plugin-dialogs

附带说明一下,如果这是您的目标,还有更好的方法来操作 DOM 和 CSS。

关于javascript - Cordova 脚本未执行,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32826857/

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