js获取判断苹果手机机型

原先获取不了苹果系列的型号，但转换思路，先判断是否是苹果，再用分辨率获取型号

//获取手机型号函数begin
function getPhoneType(){ 
//正则,忽略大小写
var pattern_phone = new RegExp("iphone","i");
var pattern_android = new RegExp("Android","i");
var userAgent = navigator.userAgent.toLowerCase();
var isAndroid = pattern_android.test(userAgent);
var isIphone = pattern_phone.test(userAgent);
var phoneType="phoneType";
if(isAndroid){ 
var zh_cnIndex = userAgent.indexOf("-");
var spaceIndex = userAgent.indexOf("build",zh_cnIndex+4);
var fullResult = userAgent.substring(zh_cnIndex,spaceIndex);
phoneType=fullResult.split(";")[1];
}else if(isIphone){ 
//6   w=375    6plus w=414   5s w=320     5 w=320
var wigth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
if(wigth>400){ 
phoneType = "iphone6 plus";
}else if(wigth>370){ 
phoneType = "iphone6";
}else if(wigth>315){ 
phoneType = "iphone5 or iphone5s";
}else{ 
phoneType = "iphone 4s";
}
}else{ 
phoneType = "您的设备太先进了";
}
return phoneType;
}
//end

//手机touch事件开始

<script>
function load (){
    document.addEventListener('touchstart',touch, false);
    document.addEventListener('touchmove',touch, false);
    document.addEventListener('touchend',touch, false);
    function touch (event){
        var event = event || window.event;
        var oInp = document.getElementById("inp");
        switch(event.type){
            case "touchstart":
                oInp.innerHTML = "Touch started (" + event.touches[0].clientX + "," + event.touches[0].clientY + ")";
                break;
            case "touchend":
                oInp.innerHTML = "<br>Touch end (" + event.changedTouches[0].clientX + "," + event.changedTouches[0].clientY + ")";
                break;
            case "touchmove":
                event.preventDefault();
                oInp.innerHTML = "<br>Touch moved (" + event.touches[0].clientX + "," + event.touches[0].clientY + ")";
                break;
        }
    }
}
window.addEventListener('load',load, false);
</script>

//touch事件结束