解决苹果手机不支持音乐自动播放

<audio id="music" class="media-audio" src="http://game.163.com/weixin/gfxm3_gc/images/bg.mp3" preload loop="loop"></audio >
<img src="images/logo.png" id="logo">

function audioAutoPlay(id){
    var audio = document.getElementById(id);
    var i = document.getElementById("logo");
            play = function(){
                audio.play();
                i.removeEventListener("touchstart",play, false);
            };
    audio.play();
    document.addEventListener("WeixinJSBridgeReady", function () {//微信
        play();
    }, false);
    document.addEventListener('YixinJSBridgeReady', function() {//易信
        play();
    }, false);
    document.addEventListener("touchstart",play, false);
}
audioAutoPlay('music');
$cover = $('#logo')
isPlay = false;
$(function () {
    $cover.addClass("cover-play")
    $cover.bind("click", function () {
        if (isPlay == false) {
            iplay();
        } else {
            nplay();
        }
    })
})
//    播放
function iplay() {
    $cover.addClass('cover-play');
    music.play();
    isPlay = true;
}

//    暂停
function nplay() {
    $cover.removeClass('cover-play');
    music.pause();
    isPlay = false;
}