AngularJS中与路径相关的CSS页面转换

Question

我是AngularJS的新手,想要实现路由依赖的页面转换.例如,我希望页面向左滑动,向右滑动或根据路线向下滑动.

下面我的'Plunker'通过听取$ routeChangeSuccess事件然后将一个特定于过渡风格的CSS类应用于进入和离开视图来实现这一点(灵感来自http://phillippuleo.com/articles/scalable-approach-page-transitions- angularjs):

http://plnkr.co/edit/ee4CHfb8kZC1WxtDM9wr?p=preview

但是,在事件监听器中调用$ scope.$ apply()会使AngularJS发出错误消息'$ digest has progress in'.但是如果我不调用$ scope.$ apply()则不会更新离开视图的CSS类,并且动画无法正常工作.

这里发生了什么？

Answer 1

我看着你的傻瓜.问题在于您使用类为视图设置动画的方式.

当$routeChangeSuccess事件被触发时,ngView在您有机会改变方向之前已经删除了该类.你可以通过快速应用新类来覆盖它,这样就不会被注意到,但是你会得到正在进行的摘要错误.

我的解决方案(plunker):

我想出了一个指令:

app.directive('animClass',function($route){
  return {
    link: function(scope, elm, attrs){
      var enterClass = $route.current.animate;
      elm.addClass(enterClass);
      scope.$on('$destroy',function(){
        elm.removeClass(enterClass);
        elm.addClass($route.current.animate);
      })
    }
  }
});

animate为每条路线声明一个选项:

app.config(function($routeProvider) {
  $routeProvider.
    when("/page1", {
      templateUrl: "page1.html",
      controller: "Page1Ctrl",
      animate: "slideLeft"
    }).
    when("/page2", {
      templateUrl: "page2.html",
      controller: "Page2Ctrl",
      animate: "slideRight"
    }).
    otherwise({
      redirectTo: "/page1"
    });
});

只需添加它ngView就像这样:

<div ng-view ng-controller="ViewCtrl" anim-class class="view"></div>

CSS:

.view {
    width: 100%;
    padding-left: 1em;
    position:absolute;
    top: 0;
    left: 0;
}

.slideLeft.ng-enter, .slideLeft.ng-leave, .slideRight.ng-enter, .slideRight.ng-leave  {
    -webkit-transition:all 1s;
    transition:all 1s;
}

.slideLeft.ng-enter {
    left:100%;
}

.slideLeft.ng-enter.ng-enter-active {
    left:0;
}

.slideLeft.ng-leave.ng-leave-active {
    left:-100%;
}

.slideRight.ng-enter {
    left:-100%;
}

.slideRight.ng-enter.ng-enter-active {
    left:0;
}

.slideRight.ng-leave.ng-leave-active {
    left:100%;
}