知识点---js监听手机返回键，回到指定界面

方法一、

$(function(){
pushHistory();
window.addEventListener(“popstate”, function(e) {
window.location = 返回的地址
}, false);
function pushHistory() {
var state = {
title: “title”,
url: “#”
};
window.history.pushState(state, “title”, “#”);
}
});

方法二、JS监听手机的物理返回键

if(window.history && window.history.pushState) {
    $(window).on('popstate', function() {
        var hashLocation = location.hash;
        var hashSplit = hashLocation.split("#!/");
        var hashName = hashSplit[1];
        if(hashName !== '') {
            var hash = window.location.hash;
            if(hash === '') {
                alert("你点击了返回键");
            }
        }
    });
    window.history.pushState('forward', null, './#forward');
}

方法三、JavaScript监听手机物理返回键

pushHistory(); 

        window.addEventListener("popstate", function(e) {
            window.location = 'http://www.baidu.com';
        }, false); 

        function pushHistory() {
            var state = {
                title: "title",
                url: "#"
            };
            window.history.pushState(state, "title", "#");
        }