Angularjs ui bootstrap: 如何垂直居中模态组件？

Question

最近在学习angularjs。我以前用过bootstrap。使用 jquery，我可以轻松更改模态组件位置，使其垂直对齐。现在有了angularjs，要做到这一点似乎不太容易。这是ui bootstrap模态的plunker link，有谁知道如何使它垂直对齐？

ui bootstrap modal component

1.index.html

    <!doctype html>
    <html ng-app="ui.bootstrap.demo">
    <head>
        <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.js"></script>
        <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular-animate.js"></script>
        <script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-1.2.1.js"></script>
        <script src="example.js"></script>
        <link href="//netdna.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
    </head>
    <body>
        <div ng-controller="ModalDemoCtrl">
            <script type="text/ng-template" id="myModalContent.html">
                <div class="modal-header">
                    <h3 class="modal-title">I'm a modal!</h3>
                </div>
                <div class="modal-body">
                    This is modal body
                </div>
                <div class="modal-footer">
                    <button class="btn btn-primary" type="button" ng-click="ok()">OK</button>
                    <button class="btn btn-warning" type="button" ng-click="cancel()">Cancel</button>
                </div>
            </script>
            <button type="button" class="btn btn-default" ng-click="open()">Open me!</button>
        </div>
    </body>
</html>

2.example.js

    angular.module('ui.bootstrap.demo', ['ngAnimate', 'ui.bootstrap']);
    angular.module('ui.bootstrap.demo').controller('ModalDemoCtrl', function($scope, $uibModal, $log) {

        $scope.items = ['item1', 'item2', 'item3'];

        $scope.animationsEnabled = true;

        $scope.open = function(size) {

            var modalInstance = $uibModal.open({
                animation: $scope.animationsEnabled,
                templateUrl: 'myModalContent.html',
                controller: 'ModalInstanceCtrl',
                size: size,
                resolve: {
                    items: function() {
                        return $scope.items;
                    }
                }
            });
        };
    });

    angular.module('ui.bootstrap.demo').controller('ModalInstanceCtrl',   function($scope, $uibModalInstance, items) {
        $scope.ok = function() {
            $uibModalInstance.close($scope.selected.item);
        };

        $scope.cancel = function() {
            $uibModalInstance.dismiss('cancel');
        };
    });

Answer 1

如果我对你的问题理解正确，你可以通过使用 CSS 实现垂直居中对齐。添加以下 CSS：

.modal {
  text-align: center;
  padding: 0!important;
}

.modal::before {
  content: '';
  display: inline-block;
  height: 100%;
  vertical-align: middle;
  margin-right: -4px;
}

.modal-dialog {
  display: inline-block;
  text-align: left;
  vertical-align: middle;
}

我已经设置了一个从你的分支出来的 Plunker 来进行演示。

您可以找到以下有用的链接

Bootstrap 3 modal vertical position center
Codepen Emaple

希望这对您有所帮助。干杯!!

Answer 2

以上解决方案将适用于所有模态框。如果您想应用于选择性模态，请遵循以下给出的解决方案。

CSS使用.class-a.class-b和.class-a .class-b选择器，需要设置选项windowClass。

.center-modal.modal {
  text-align: center;
}

@media screen and (min-width: 768px) { 
  .center-modal.modal:before {
    display: inline-block;
    vertical-align: middle;
    content: " ";
    height: 100%;
  }
}

.center-modal .modal-dialog {
  display: inline-block;
  text-align: left;
  vertical-align: middle;
}

var modalInstance = $uibModal.open({
    templateUrl: 'modules/users/client/views/authentication/login.client.view.html',
    windowClass: "center-modal"
});

Answer 3

您可以在 open 方法的对象参数中使用 windowTopClass 属性。

https://angular-ui.github.io/bootstrap/

$uibModal.open({
  ...
  ...
  windowTopClass: "modal-center-override"
});

与相应的 CSS class 覆盖

.modal-center-override {
  top: 50% !important;
  transform: translateY(-50%) !important;
  -webkit-transform: translateY(-50%) !important;
  -moz-transform: translateY(-50%) !important;
  -o-transform: translateY(-50%) !important;  
}

Answer 4

有时以模态对话框为中心 class 在 ng-template 中不工作。

在Angular中是模态垂直居中的简单方法。调用 modalService.open.

时，只需在 side open 函数中使用 centered: true

导入 NgbModal :

import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
constructor(
  private modalService: NgbModal
 ) {}
this.modalService.open(content, { centered: true });

使用这个我希望它有效

Angularjs ui bootstrap: 如何垂直居中模态组件？

Angularjs ui bootstrap: how to vertical center modal component?

angularjs

angular-ui-bootstrap

bootstrap-modal