CSS 滑入滑出动画溢出问题

Question

我正在尝试为屏幕外的图块列表制作动画，同时在屏幕上为新的图块列表制作动画。

我正在使用 Angular 的 ng-for 来遍历一组可见项，因此技术上只有一个列表，但是 Angular 的 ngAnimate 模块使被逐出的项目保持活动状态，直到动画完成。

我的问题是，每当两个图块列表在动画中间同时出现在屏幕上时，一个就会溢出并在另一个下方结束。

这是正在发生的事情：

这就是我想要它做的：

我试过搞乱 CSS 转换、绝对定位，但我似乎无法正确处理。

这是一个 fiddle 的工作示例：http://jsfiddle.net/soethzfm/7/

(function() {
  var app = angular.module("animationApp", ["ngAnimate"]);

  app.controller('FrameController', ['$scope',
    function($scope) {

      $scope.message = 'Hello world';
      $scope.items = [];
      $scope.visibleItems = [];
      for (var i = 3; i < 9; i++) {
        $scope.items.push({
          name: 'Item ' + (i - 2),
          color: "#" + (i) + "0" + (i % 5) + "0" + (i % 4) + '0'
        });
      }


      $scope.firstThree = true;
      $scope.selectNextItems = function() {
        if ($scope.firstThree) {
          $scope.firstThree = false;
          $scope.visibleItems = [$scope.items[0], $scope.items[1], $scope.items[2]];
        } else {
          $scope.firstThree = true;
          $scope.visibleItems = [$scope.items[3], $scope.items[4], $scope.items[5]];
        }
      }
      $scope.selectNextItems();
    }
  ]);
})()

.item-container {
  width: 400px;
  border: 1px solid red;
  overflow: hidden;
}
.item {
  color: white;
  width: 100px;
  height: 150px;
  border: 5px solid #F3F5F6;
  display: inline-block;
  position: relative;
  cursor: pointer;
}
.item:hover {
  padding: 2px;
  border: 3px solid blue;
}
/* Animations */

.item.ng-move,
.item.ng-enter,
.item.ng-leave {
  -webkit-transition: 1400ms cubic-bezier(0.250, 0.250, 0.750, 0.750) all;
  -moz-transition: 1400ms cubic-bezier(0.250, 0.250, 0.750, 0.750) all;
  -ms-transition: 1400ms cubic-bezier(0.250, 0.250, 0.750, 0.750) all;
  -o-transition: 1400ms cubic-bezier(0.250, 0.250, 0.750, 0.750) all;
  transition: 1400ms cubic-bezier(0.250, 0.250, 0.750, 0.750) all;
}
.item.ng-enter,
.item.ng-move {
  left: -100%;
}
.item.ng-enter.ng-enter-active,
.item.ng-move.ng-move-active {
  left: 0;
}
.item.ng-leave {
  right: 0;
}
.item.ng-leave.ng-leave-active {
  right: -100%;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular-animate.min.js"></script>
<div ng-app="animationApp">
  <div ng-controller="FrameController as vm">

    <button ng-click="selectNextItems()">Next Page</button>

    <div class="item-container">

      <div class="item" ng-repeat="item in visibleItems" ng-style="{'background-color': item.color}">
        {{item.name}}
      </div>
    </div>
  </div>
</div>

Answer 1

您遇到的问题是因为内容被环绕在父容器中。父容器的宽度只有 400 像素，但每个盒子的宽度都是 100 像素 + 2 * 5 像素（用于边框）。所以只有 3 个盒子可以放在同一行，其余的必须绕到下一行。当您同时显示所有 6 个元素时，可以非常清楚地看到这一点。正如您在下面的代码片段中看到的，最后 3 项换行到下一行。

^{注意：我对 AngularJS 一无所知，所以请原谅我试图让所有六个同时可见的糟糕尝试。}

(function() {
  var app = angular.module("animationApp", ["ngAnimate"]);

  app.controller('FrameController', ['$scope', function($scope) {
   
    $scope.message = 'Hello world';
    $scope.items = [];
    $scope.visibleItems = [];
    for (var i = 3; i < 9; i++) {
      $scope.items.push({
        name: 'Item ' + (i - 2),
        color: "#" + (i) + "0" + (i % 5) + "0" + (i % 4) + '0'
      });
    }


    $scope.firstThree = true;
    $scope.selectNextItems = function() {
      if ($scope.firstThree) {
        $scope.firstThree = false;
        $scope.visibleItems = [$scope.items[0], $scope.items[1], $scope.items[2], $scope.items[3], $scope.items[4], $scope.items[5]];
      } else {
        $scope.firstThree = true;
        $scope.visibleItems = [$scope.items[3], $scope.items[4], $scope.items[5]];
      }
    }
    $scope.selectNextItems();
  }]);
})()

.item-container {
  width: 400px;
  border: 1px solid red;
  overflow: hidden;
}
.item {
  color: white;
  width: 100px;
  height: 150px;
  border: 5px solid #F3F5F6;
  display: inline-block;
  position: relative;
  cursor: pointer;
}
.item:hover {
  padding: 2px;
  border: 3px solid blue;
}
/* Animations */

.item.ng-move,
.item.ng-enter,
.item.ng-leave {
  transition: 1400ms cubic-bezier(0.250, 0.250, 0.750, 0.750) all;
}
.item.ng-enter,
.item.ng-move {
  left: -80%;
}
.item.ng-enter.ng-enter-active,
.item.ng-move.ng-move-active {
  left: 0%;
}
.item.ng-leave {
  right: 0%;
}
.item.ng-leave.ng-leave-active {
  right: -100%;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular-animate.min.js"></script>
<div ng-app="animationApp">
  <div ng-controller="FrameController as vm">

    <button ng-click="selectNextItems()">Next Page</button>

    <div class="item-container">

      <div class="item" ng-repeat="item in visibleItems" ng-style="{'background-color': item.color}">
        {{item.name}}
      </div>
    </div>
  </div>
</div>

通过向父容器添加 white-space: nowrap 设置可以轻松解决此问题。通过这样做，我们可以让所有六个元素排在同一行，这样动画期间出现的不匹配就会消失。

(function() {
  var app = angular.module("animationApp", ["ngAnimate"]);

  app.controller('FrameController', ['$scope', function($scope) {
   
    $scope.message = 'Hello world';
    $scope.items = [];
    $scope.visibleItems = [];
    for (var i = 3; i < 9; i++) {
      $scope.items.push({
        name: 'Item ' + (i - 2),
        color: "#" + (i) + "0" + (i % 5) + "0" + (i % 4) + '0'
      });
    }


    $scope.firstThree = true;
    $scope.selectNextItems = function() {
      if ($scope.firstThree) {
        $scope.firstThree = false;
        $scope.visibleItems = [$scope.items[0], $scope.items[1], $scope.items[2]];
      } else {
        $scope.firstThree = true;
        $scope.visibleItems = [$scope.items[3], $scope.items[4], $scope.items[5]];
      }
    }
    $scope.selectNextItems();
  }]);
})()

.item-container {
  width: 400px;
  border: 1px solid red;
  overflow: hidden;
  white-space: nowrap;
}
.item {
  color: white;
  width: 100px;
  height: 150px;
  border: 5px solid #F3F5F6;
  display: inline-block;
  position: relative;
  cursor: pointer;
}
.item:hover {
  padding: 2px;
  border: 3px solid blue;
}
/* Animations */

.item.ng-move,
.item.ng-enter,
.item.ng-leave {
  transition: 1400ms cubic-bezier(0.250, 0.250, 0.750, 0.750) all;
}
.item.ng-enter,
.item.ng-move {
  left: -80%;
}
.item.ng-enter.ng-enter-active,
.item.ng-move.ng-move-active {
  left: 0%;
}
.item.ng-leave {
  right: 0%;
}
.item.ng-leave.ng-leave-active {
  right: -100%;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular-animate.min.js"></script>
<div ng-app="animationApp">
  <div ng-controller="FrameController as vm">

    <button ng-click="selectNextItems()">Next Page</button>

    <div class="item-container">

      <div class="item" ng-repeat="item in visibleItems" ng-style="{'background-color': item.color}">
        {{item.name}}
      </div>
    </div>
  </div>
</div>

但是正如您在输出中看到的那样，这些动作似乎并不是天衣无缝的。这样做的原因是因为位置设置并不像它们应该的那样安静。如前所述，我对 Angular 动画的工作原理知之甚少，因此我无法完全修复它们，但对进入、离开和移动使用相同的位置属性将是一个起点。如果我们在事件过程中将位置从 left 修改为 right 或 vice-versa ， transition 效果将无效，只会导致瞬间跳跃。您在代码片段中注意到的另一件事是，我还修改了定位值以使效果看起来更平滑。但这些都是在反复试验的基础上完成的。我强烈建议你首先使用纯 CSS 实现整个东西，然后将其移植到 AngularJS.

(function() {
  var app = angular.module("animationApp", ["ngAnimate"]);

  app.controller('FrameController', ['$scope', function($scope) {
   
    $scope.message = 'Hello world';
    $scope.items = [];
    $scope.visibleItems = [];
    for (var i = 3; i < 9; i++) {
      $scope.items.push({
        name: 'Item ' + (i - 2),
        color: "#" + (i) + "0" + (i % 5) + "0" + (i % 4) + '0'
      });
    }


    $scope.firstThree = true;
    $scope.selectNextItems = function() {
      if ($scope.firstThree) {
        $scope.firstThree = false;
        $scope.visibleItems = [$scope.items[0], $scope.items[1], $scope.items[2]];
      } else {
        $scope.firstThree = true;
        $scope.visibleItems = [$scope.items[3], $scope.items[4], $scope.items[5]];
      }
    }
    $scope.selectNextItems();
  }]);
})()

.item-container {
  width: 400px;
  border: 1px solid red;
  overflow:hidden;
  white-space: nowrap;
}
.item {
  color: white;
  width: 100px;
  height: 150px;
  border: 5px solid #F3F5F6;
  display: inline-block;
  position: relative;
  cursor: pointer;
}
.item:hover {
  padding: 2px;
  border: 3px solid blue;
}

/* Animations */
.item.ng-move,
.item.ng-enter,
.item.ng-leave {
  transition: 1400ms cubic-bezier(0.250, 0.250, 0.750, 0.750) all;
}
.item.ng-enter,
.item.ng-move {
  left: -80%;
}
.item.ng-enter.ng-enter-active,
.item.ng-move.ng-move-active {
  left: 0%;
}
.item.ng-leave {
  left: -80%;
}
.item.ng-leave.ng-leave-active {
  left: 0%;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular-animate.min.js"></script>
<div ng-app="animationApp">
  <div ng-controller="FrameController as vm">

    <button ng-click="selectNextItems()">Next Page</button>

    <div class="item-container">

      <div class="item" ng-repeat="item in visibleItems" ng-style="{'background-color': item.color}">
        {{item.name}}
      </div>
    </div>
  </div>
</div>

CSS 滑入滑出动画溢出问题

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