Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.3k views
in Technique[技术] by (71.8m points)

cordova - Override Android Backbutton behavior only works on the first page with PhoneGap

I am using PhoneGap 1.5.0, jQuery 1.7.1 and jQuery mobile 1.0.1 and trying to override the backbutton in Android as stated here or here.

document.addEventListener("deviceready", onDeviceReady, false);
// PhoneGap loaded

function onDeviceReady() {
console.log("PhoneGap Ready!");
// waiting for button
document.addEventListener("backbutton", handleBackButton, false);
}

// handle the back button
function handleBackButton() {
console.log("Back Button Pressed!");
navigator.app.exitApp();
}

But it only works on the first page of my app. After changing to a different page the backbutton does nothing at all. The app consists of a tabview like this:

<body>
<div data-role="page" id="pilotTab">
    <div data-role="header">
        <h1>Pilot</h1>
    </div>
    <div data-role="content" id="pilotContent">
content be here ;)
    </div>
    <div data-role="footer" data-position="fixed">
        <div data-role="navbar">
            <ul>
                <li><a href="pilotTab.html" data-transition="none">Lotse</a>
                </li>
                <li><a href="bookingTab.html" data-transition="none">Verkehr</a>
                </li>
                <li><a href="mainListTab.html" data-transition="none">B&ouml;rt</a>
                </li>
            </ul>
        </div>
        <!-- /navbar -->
    </div>
    <!-- /footer -->
</div>

Is it a stupid mistake or is there something special I have to consider to make it work properly? Thanks in advance.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

I gone through the new Phonegap source code and did following changes to make the backbutton work.

Html test code

<script type="text/javascript">
    $("#home").click(function(){
        $.mobile.changePage("home.html");
    });

    document.addEventListener("deviceready", onDeviceReady, false);
    document.addEventListener("backbutton", handleBackButton, false);

    function onDeviceReady() {
        console.log("PhoneGap Ready!");
    }

    function handleBackButton() {
        console.log("Back Button Pressed!");
        navigator.app.exitApp();
    }
</script>

Put the following code in the else block of document.addEventListener in cordova-1.5.0.js after line-no 507

if (e === 'backbutton') {
    var exec = require('cordova/exec')
    exec(null, null, "App", "overrideBackbutton", [true]);
}

Put following code in fireDocumentEvent method of cordova definition in cordova-1.5.0.js after line-no 592

if(type == "backbutton"){
    var e = document.createEvent('Events');
    e.initEvent(type);
    if (data) {
        for (var i in data) {
            e[i] = data[i];
        }
    }
    document.dispatchEvent(e);
    return;
}

I have put the whole cordova-1.5.0.js in this gist with updated code https://gist.github.com/2020325

Though it is working for me but it still may need some changes to work in all the possible scenarios.

Edit

Put following code in fireDocumentEvent method of cordova definition in cordova-1.5.0.js after line-no 592

if(type == "backbutton" || type == "menubutton" || type == "searchbutton"){
        var e = document.createEvent('Events');
        e.initEvent(type);
        if (data) {
            for (var i in data) {
                e[i] = data[i];
            }
        }
        document.dispatchEvent(e);
        return;
    }

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...