喚醒app

<!doctype html>
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<head>
    <meta charset="utf-8"/>
    <title>redirectToNative的demo</title>
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<body>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"/>
<div style="font-size:16px;color:#333">
    若是沒有自動下載,請手動<a style="color:red;font-size:20px" href="http://m.etao.com/download.php?src=unsupport">點此下載一淘客戶端</a>,安裝後用一淘客戶端的掃描功能從新掃描二維碼便可;</br></br>
    若是您不想安裝客戶端,也能夠<a style="color:red;font-size:20px" id="J_gotoH5" href="http://m.etao.com/#item/">直接訪問etao觸屏版</a>,一樣有手機專享價以及優惠券和返利!
</div>
<script>
  /**
   * @fileoverview
   * @author miaojing<miaojing@taobao.com>
   * @module redirectToNative 移動頁面中間跳轉頁面使用,打開native app,沒安裝則引導去下載app,不依賴任何kissy模塊
   * @ps 線上運行數月至今,目前測試發現魅族手機沒法識別etao://item 懷疑手機系統不支持,具體緣由客戶端開發排查目前無果,這種狀況可在跳轉頁面添加文本再次引導用戶
   **/

  /**
   * @class RedirectToNative
   * @constructor
   */
  var RedirectToNative = {
    /**
     * iosNativeUrl: string 必選 ios app上自定義的url scheme) 如 taobao://home(淘寶首頁) etao://item?nid=xxx(一淘商品詳情頁)
     * andriodNativeUrl: string 必選 android app自定義的url scheme
     * iosInstallUrl: string 必選 ios app store裏的安裝地址
     * androidInstallUrl: string 必選 android app的apk地址
     * package: string 可選 默認com.taobao.taobao android的包名,如淘寶爲com.taobao.taobao,etao爲com.taobao.etao
     * iosOpenTime: int 可選默認800ms, 啓動ios客戶端所需時間,通常ios平臺總體性能不錯,打開速度較快
     * androidOpenTime: int 可選默認2000ms,啓動android客戶端所需時間,android系統性能良莠不齊所需啓動時間也不齊,和android客戶端自己啓動時間也有關,好比3.0版本啓動一淘客戶端就平均比淘寶客戶端要慢200ms
     */
    init: function (config) {
      var self = this
      self.platform = self._UA()
      // pc下 什麼都不處理  pc訪問下可能href能夠連接去其餘地址
      if (!self.platform) return
      if (self.platform == 'ios') {
        self.installUrl = config.iosInstallUrl
        self.nativeUrl = config.iosNativeUrl
        self.openTime = config.iosOpenTime || 800
      } else {
        self.installUrl = config.androidInstallUrl
        self.nativeUrl = config.andriodNativeUrl
        self.openTime = config.androidOpenTime || 3000
        self.package = config.package || 'com.taobao.taobao'
      }
      //只有android下的chrome要用intent協議喚起native
      if (self.platform != 'ios' && !!navigator.userAgent.match(/Chrome/i)) {
        self._hackChrome();
      } else {
        alert("kk")
        self._gotoNative();
      }
    },
    /**
     * _hackChrome 只有android下的chrome要用intent協議喚起native
     * https://developers.google.com/chrome/mobile/docs/intents
     * @return {[type]}
     */
    _hackChrome: function () {
      var self = this
      var startTime = Date.now()
      var paramUrlarr = self.nativeUrl.split('://'),
        scheme = paramUrlarr[0],
        schemeUrl = paramUrlarr[1]
      window.location = 'intent://' + schemeUrl + '#Intent;scheme=' + scheme + ';package=' + self.package + ';end'
      setTimeout(function () {
        self._gotoDownload(startTime)
      }, self.openTime)
    },
    /**
     * [_gotoNative 跳轉至native,native超時打不開就去下載]
     * @return
     */
    _gotoNative: function () {
      var u = navigator.userAgent;
      var self = this
      var startTime = Date.now(),
        doc = document,
        body = doc.body,
        iframe = doc.createElement('iframe')
      iframe.id = 'J_redirectNativeFrame'
      iframe.style.display = 'none';
     if(u.indexOf('Safari') > -1){
       window.location.href=self.nativeUrl
     }
     else {
       iframe.src = self.nativeUrl;
     }
//
      //運行在head中
      if (!body) {
        setTimeout(function () {
          doc.body.appendChild(iframe)
        }, 0)
      } else {
        body.appendChild(iframe)
      }

      setTimeout(function () {
        doc.body.removeChild(iframe)
        self._gotoDownload(startTime)
        /**
         * 測試時間設置小於800ms時,在android下的UC瀏覽器會打開native app時並下載apk,
         * 測試android+UC下打開native的時間最好大於800ms;
         */
      }, self.openTime)
    },
    /**
     * [_gotoInstall 去下載]
     * @param  {[type]} startTime [開始時間]
     * @return
     */
    _gotoDownload: function (startTime) {
      var self = this
      var endTime = Date.now()
      if (endTime - startTime < self.openTime + 500) {
        window.location = self.installUrl
      }
    },
    /**
     * [_UA 檢測平臺]
     * @return string [ios|android| ]
     */
    _UA: function () {
      var ua = navigator.userAgent
      // ios
      if (!!ua.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/)) {
        return 'ios'
      } else if (!!ua.match(/Android/i)) {
        return 'android'
      } else {
        return ''
      }
    },
  }
  //透傳參數
  var searchStr = location.search,
    iosNativeUrl = 'taobao://detail.tmall.com/item.htm?id=543501628646',
    andriodNativeUrl = 'taobao://detail.tmall.com/item.htm?id=543501628646',
    downloadUrl = 'https://mpage.taobao.com/hd/download.html?spm=a21bo.50862.1997563273.1.28689e73fipyOa',
    configObj = {
      iosInstallUrl:"http://itunes.apple.com/app/id387682726?mt=8" ,
      androidInstallUrl: "http://download.alicdn.com/wireless/taobao4android/latest/702757.apk",
      iosNativeUrl: iosNativeUrl,
      andriodNativeUrl: andriodNativeUrl,
      package: 'com.taobao.taobao',
    }
  RedirectToNative.init(configObj)
</script>
</body>
</html>
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