Background behavior for iOS Web App (so app doesn't restart)

问题

I'm trying to build a mobile web app and am intrigued by the "apple-mobile-web-app-capable" option, making the app feel a lot more native.

The issue I'm having is that it's an app that lets a user browse through a bunch of content, some of which opens a new browser window outside the web app (on purpose). The problem is, when a user goes back to the web app, it re-launches and starts them from the home page.

Has anyone found a way to avoid this complete reloading process?

回答1:

ive got it working like this:

if(window.navigator.standalone === true) {
    var lastpage = localStorage.getItem('exitsatus');
    if (lastpage==null){
        lastpage = "index.html";
    }
    if(document.referrer.length > 0 && document.referrer.indexOf("mysite.com") != -1){
        var lastpageupdate = window.location;
        localStorage.setItem('exitsatus',lastpageupdate);      
    } else {
        window.location = lastpage;
    }
}

回答2:

There is, but it's a bit of a hack and requires some JavaScript.

What you want to do is at the end of each page load, save the current path in offline key-value storage. In your head, see if there's an entry for the URL and if so, load it up. What you want to ensure is that internal links disable this key so that you don't just jump to a link and then back again.

回答3:

SO from what I gathered from other people outside SO, this just isn't possible.

来源：https://stackoverflow.com/questions/5810648/background-behavior-for-ios-web-app-so-app-doesnt-restart