后退按钮确认退出应用程序的Andr​​oid + PhoneGap的+的jQuery [英] backbutton confirm exit app android + phonegap + jquery

问题描述

我如何处理物理后退按钮在Android中使用jQuery Mobile的PhoneGap的在线系统中？ 我想显示确认退出应用程序（是 - 否）。我尝试过很多方法，但没有什么工作。

How can I handle the Physical Back Button in Android by using jQuery Mobile within Phonegap online system? I want to show confirm to exit the app (YES - NO). I tried many ways but nothing is working.

推荐答案

试试这个：

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

function onDeviceReady() {
    document.addEventListener("backbutton", onBackKeyDown, false); //Listen to the User clicking on the back button
}

function onBackKeyDown(e) {
    e.preventDefault();
    navigator.notification.confirm("Are you sure you want to exit ?", onConfirm, "Confirmation", "Yes,No"); 
    // Prompt the user with the choice
}

function onConfirm(button) {
    if(button==2){//If User selected No, then we just do nothing
        return;
    }else{
        navigator.app.exitApp();// Otherwise we quit the app.
    }
}

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