mui实现退出当前应用

var first = null;
var showMenu = false;
mui.back = function() {
if(showMenu)
{ closeMenu();}
else {
//首次按键，提示‘再按一次退出应用’
if(!first) {
first = new Date().getTime();
mui.toast('再按一次退出应用');
setTimeout(function() {
first = null;
}, 1000);
} else {
if(new Date().getTime() - first < 1000) {
plus.runtime.quit();
}}}};

转载于:https://www.cnblogs.com/qiuchunxia/p/5916257.html