Native app and JS Interactive jssdk design

var UA = Window.navigator.userAgent.toLowerCase ()
var Isios = ua &&/iphone|ipad|ipod|ios/.test (UA)
function NoOp (a) {
}

JSON format for parameter rules

JS Tune up native
var jscallnative={
    "GetPosition": function (param) {
        var param=json.stringify (param)
        if (Isios) {
            Window.webkit.messageHandlers.getPosition.postMessage (param);
        }else{
            Android.getposition (param);
        }
    }
}

Native Call JS
var nativecalljs={
    "GetPosition": NoOp,
}

JDK for use by users
var jdk={
    "GetPosition": function (PARAM,FN) {
        Jscallnative.getposition (param);
        Nativecalljs.getposition=function (res) {
            var res=json.parse (res);
            Fn.call (Null,res);
        };
    }
}


Usage on the page

/*

Jdk.getposition ({name:111},function (res) {
    Console.log (RES);
})

*/

Native app and JS Interactive jssdk design