Javascript 切换isn'；t换回来，然后span ng bind赢了'；t更新到指定的文本

我正在尝试创建一个登录页面，当单击登录时，它将变为登录。。。。如果登录不正确，则“登录”按钮返回“登录”，并在下面显示错误消息。发生的情况是，单击“登录”后，登录。。。。即使输入了错误的密码，也要留下来，直到我集中输入电子邮件后，错误消息才会更新。非常感谢。 Html登录文件

<ion-view title="Login" id="page6">
  <ion-content padding="true" class="has-header">
    <form id="login-form4" class="list">
      <ion-list id="login-list2">
        <label class="item item-input" id="login-input10">
          <span class="input-label">Username/Email</span>
          <input type="text" ng-model="UserInfo.email" placeholder="">
        </label>
        <label class="item item-input" id="login-input11">
          <span class="input-label">Password</span>
          <input type="password" ng-model="UserInfo.password" placeholder="">
        </label>
      </ion-list>
      <div class="spacer" style="height: 40px;"></div>
      <button id="login-button2" ng-click="login();login = !login" class="button button-positive  button-block">
      <span ng-show="login"> Log in</span>
      <span ng-hide="login">Logging in....</span>
      </button>
      <a ui-sref="signup" id="login-button3" class="button button-positive  button-block button-clear">Or create an account</a>
    </form>
    <span ng-bind="errorText"><font color="red"></font></span>
  </ion-content>
</ion-view>

---

DOM将仅在运行摘要循环后更新。如果您自己不调用它，则只有在触发事件（如单击电子邮件文本框）时，才会发生此事件

要手动运行摘要循环，请在设置

$scope.errorText

---

$rootScope.Scope#$apply

是，修复了错误消息谢谢，但是如果您想登录，登录按钮仍然停留在“登录…”位置。。。。要在显示错误消息时消失，应使用ng show而不是ng hide。按照现在的方式，在错误消息之后，$scope.login被设置为false，因此ng hide=false，这意味着它没有隐藏，这意味着它确实显示了。还要确保在将$scope.login设置为true后调用$apply（）

.controller('loginCtrl', ['$scope', '$stateParams', 'md5', 'Userid', '$state',// The following is the constructor function for this page's controller. See https://docs.angularjs.org/guide/controller
// You can include any angular dependencies as parameters for this function
// TIP: Access Route Parameters for your page via $stateParams.parameterName
function ($scope, $stateParams,md5,Userid,$state) {

$scope.UserInfo = {};

$scope.login = true;

$scope.login =function(){







    var client = new WindowsAzure.MobileServiceClient('URL');

    if ($scope.UserInfo.password == null){
        $scope.UserInfo.password = "fa";
    }
    console.log($scope.UserInfo.password);
    var query = client.getTable('USERID')
    .where({ Email: $scope.UserInfo.email, Password: md5.createHash($scope.UserInfo.password) })
    .read()
    .done(function(results) {


        if(results[0] == undefined)
        {
            console.log("undefined");
            $scope.errorText = "Error: Wrong Username Passowrd";
            $scope.login = false;
        }
        else
        {
            Userid.setJson(results[0].id);

            $state.go('tabsController.qRCode');
        }




    }, function(error) {
        console.log('an error occurred while checking login:');
        console.dir(error);
    });

$scope.UserInfo.password = "";


};



}])