Question

我正在制作Andriod应用。当应用程序启动时，它会显示一个加载页面，然后显示一个选择页面。我希望当我按下我的选择上的移动后退按钮时，应该从用户确认“你确定退出应用程序”。我试试这段代码，但它不能正常工作

document.addEventListener("deviceready", onDeviceReady, false);
document.addEventListener('backbutton', function(event){
    event.preventDefault(); // EDIT
    navigator.app.exitApp(); // exit the app
});

Answer 1

I have tried this code and its working.

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. } }

在Android应用中控制硬件后退按钮

1 个答案: