android - phone gap Back button alert message

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android - phone gap Back button alert message

posted Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

android - phone gap Back button alert message

I want to give a pop up whenever the back button is clicked. Using my code now back button is disable but it is not giving alert message.It is still not working. My work..

function load()
{
document.addEventListener("backbutton", backKeyDown, false);
function backKeyDown() {console.log("PhoneGap Ready!");}
}

<body onLoad="load()">
</body>

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1 Reply

深蓝 · Answer 1 · 2022-01-31T07:16:12+0000

Just try to Call this document addEventListener inside the pageshow function. you have to check the backbutton event in the every page show.

This example will help you,

$(document).bind ('pageshow', function (e, data) {
            document.addEventListener("backbutton", function () { 
                setTimeout( function() {console.log("PhoneGap Ready!");}, 100 );
            }, true);
        }
    });

Just call this bind method in the onDeviceReady method. Body onLoad Event does not work in some cases of phonegap. Use with phonegap events.

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android - phone gap Back button alert message

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