apicloud 调用 高德地图 的导航

var installed = api.appInstalled({
        sync: true,
        appBundle: 'com.autonavi.minimap'
});
if (installed) {
        //应用已安装
        alert('应用已安装');
        var blat = '40.805751105532494';
        var blon = '111.62044542809416';
        var uri = "";
        uri += 'androidamap://navi?';
        uri += 'sourceApplication=' + api.appName;
        uri += '&poiname=酒店';
        uri += '&lat=' + blat + '&lon=' + blon;
        uri += '&dev=1';
        uri += '&style=2';
        api.openApp({
              // androidPkg: 'com.autonavi.minimap',
              androidPkg: 'android.intent.action.VIEW',
              appParam: {
                  lat: blat,
                  lon: blon,
                  dev: '0',
                  style: '2',
                  sourceApplication: api.appName
              },
              uri: uri
           }, function(ret, err) {
              if (ret) { 
              } else {
                  $.toast('未安装高德地图');
              }
           });
          } else {
                //应用未安装
                alert('应用未安装')
          }