$scope.godetail=function(unit){

      var options = {

        location: 'yes',

        clearcache: 'yes',

        toolbar: 'no'

      };

      var reg=/^([hH][tT]{2}[pP]:\/\/|[hH][tT]{2}[pP][sS]:\/\/)(([A-Za-z0-9-~]+)\.)+([A-Za-z0-9-~\/])+$/;

      if(reg.test(unit.DetailAddr)){

        $cordovaInAppBrowser.open(unit.DetailAddr, '_blank', options)

          .then(function(event) {

            // success

          })

          .catch(function(event) {

            // error

          });

        //$cordovaInAppBrowser.close();

      }

      else{

        $ionicLoading.show({

          noBackdrop: true,

          template: "地址错误",

          duration: 1500

        });

      }

    }

$rootScope.$on('$cordovaInAppBrowser:loadstart', function(e, event){
  alert("I安装中了");
});

  <div class="card">

      <div class="item">

        <strong>{{HelpProc.RescueModel.UnitName}}&nbsp;<label class="price">￥{{HelpProc.RescueModel.Amount}}</label></strong>

        <div class="item" ng-repeat="unit in HelpProc.RescueModel.ListRescue" ng-click="godetail(unit)">

          <span > {{unit.UnitName}}</span>

          <div class="clearfix"></div>

          <p class="align_right "><label class="labgreen">￥{{unit.Amount}} &nbsp;{{unit.DtTime}}</label></p>

        </div>

      </div>

    </div>