How Do I Disable The Phone's Back Button In Android Using Jquerymobile, Phonegap

Could someone please tell me how to disable Android's back button (That is the back-button found on all Android phones). I am using Jquery mobile with PhoneGap. I find this online

Solution 1:

I used backKeyDown and it works for me :

functiononDeviceReady() {
        document.addEventListener("backbutton", backKeyDown, true);
        console.log("PhoneGap is ready");
    }

    functionbackKeyDown(d) {
        navigator.app.exitApp(); // To exit the app!
        e.preventDefault(); // to disable the back
    }

make sure that PhoneGap is ready!

Update: You can leave the handler empty to disable it

Solution 2:

sometimes you can get blocking Back button, sometimes not.

document.addEventListener("deviceready", onDeviceReady, false);
functiononDeviceReady() {
    document.addEventListener("backbutton", function (e) {
        e.preventDefault();
    }, false );
}