h5端提示下載app

   // app下載提示
    if (!sessionStorage.getItem("appDownloadTipClosed")
            && isAndroidOrIphone()
            && !isYrhApp()) {
        $("#appDownloadTip").removeClass("mui-hidden");
        $("#appDownloadTip .media-ops").on("click", function (e) {
            $("#appDownloadTip").remove();
            sessionStorage.setItem("appDownloadTipClosed", "true");
            e.stopPropagation();//stopPropagation()是不在派發事件
            return false;
        });
    }

function isAndroidOrIphone() {
    var ua = navigator.userAgent.toLowerCase();//toLowerCase()把字元串轉換為小寫
    return ua.indexOf("android") >= 0
        || ua.indexOf("ios") >= 0
        || ua.indexOf("iphone") >= 0
        || ua.indexOf("ipad") >= 0;
};
function isYrhApp() {
    var ua = navigator.userAgent.toLowerCase();
    return ua.indexOf("**app") >= 0
        || ua.indexOf("**_app") >= 0
        || ua.indexOf("** app") >= 0;//判斷app名字是否出現
};

 <!-- app下載提示 -->
    <a class="media mui-block mui-hidden" id="appDownloadTip"
       href="下載app路徑">
        <div class="media-object">
            <img src="../assets/img/logo2.jpg">
        </div>
        <div class="media-body">
            <div class="text-primary">下載安裝**App</div>
            <div>體驗更流暢、更便捷 (支持蘋果、安卓手機)</div>
        </div>
        <div class="media-ops">
            <span class="text-primary">&times;</span>
        </div>
    </a>