transition

需求 实时弹幕不需要数据库存储 工具vue+springboot 实现 效果图： 前端代码： 实现原理：利用transition-group组件实现群动画效果（需绑定一个数组），然后在随机给每一个弹幕一个高度即可。在通过即时通信给数组添加数据即可随机高度出现弹幕。 技术要求：transition-group（建议参照vue官方文档），axios（需要解决跨域问题），socket 代码： <!--yzx--> <template> <div id="test"> <label for=""> 弹幕: <input type="text" v-model="id"> </label> <input type="button" value="button" @click="add"><br><br><br> <video src="../../assets/2.mp4" controls="controls"></video> <!-- 通过 为 transition-group 元素，设置 tag 属性，指定 transition-group 渲染为指定的元素，如果不指定 tag 属性，默认，渲染为 span 标签 --> <div class="bar"> <transition-group appear tag="div"> <div class="divbar" v-bind

I was surfing the net looking for a nice effect for turning pages on Android and there just doesn't seem to be one. Since I'm learning the platform it seemed like a nice thing to be able to do is this. I managed to find a page here: http://wdnuon.blogspot.com/2010/05/implementing-ibooks-page-curling-using.html - (void)deform { Vertex2f vi; // Current input vertex Vertex3f v1; // First stage of the deformation Vertex3f *vo; // Pointer to the finished vertex CGFloat R, r, beta; for (ushort ii = 0; ii < numVertices_; ii++) { // Get the current input vertex. vi = inputMesh_[ii]; // Radius of the

动画 1.关键帧(@keyframes) 关键帧(keyframes) - 定义动画在不同阶段的状态。 动画属性(properties) - 决定动画的播放时长，播放次数，以及用何种函数式去播放动画等。（可以类比音视频播放器） css属性 - 就是css元素不同关键帧下的状态。 创建了一个@keyframes命名为dropdown。 关键帧主要分为3个阶段，0%、50%、100%。 动画播放时长为6s、循环播放(infinite)、以linear方式进行播放。 修改的元素属性为margin-top .list div:first-child { animation: dropdown 8s linear infinite; } @keyframes dropdown { 0% { margin-top: 0px;} /** 暂停效果 */ 10% { margin-top: 0px;} 50% { margin-top: -100px;} 60% { margin-top: -100px;} 90% { margin-top: -200px;} 100% { margin-top: -200px;} } 需要注意！当属性的个数不确定时： 当我们在定义不同关键帧，元素属性的个数是一个变化的值。 如果一个关键帧的属性，没有出现在其他关键帧的时候，那么这些属性将会使用上一帧的默认值。

I am looking for a way to do a UIViewAnimationTransitionCurlUp or UIViewAnimationTransitionCurlDown transition on the iPhone but instead of top to bottom, do it from the left to right (or top/bottom in landscape mode). I've seen this asked aroud the internet a few times but none sems to get an answer. However I feel this is doable. I have tried changing the View's transform and the view.layer's transform but that didn't affect the transition. Since the transition changes when the device changes orientation I presume there is a way to fool the device to use the landscape transition in portrait

I have two activities in the stack, in order to show them I use FLAG_ACTIVITY_REORDER_TO_FRONT. So far so good, the problem comes when I want to bring the activity with an animation using overridePendingTransition. Intent i = new Intent(ActivityA.this, ActivityB.class); i.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); ActivityA.this.startActivity(i); overridePendingTransition(R.anim.transition_to_right, R.anim.transition_to_left); The transition is not shown, however, if the flag is not added to the intent (removing line 2) then there is no problem. Is it possible to bring an activity to

Is it possible to hide element 5 seconds after the page load? I know there is a jQuery solution . I want to do exactly same thing, but hoping to get the same result with CSS transition. Any innovative idea? Or am I asking beyond the limit of css transition/animation? SW4 YES! But you can't do it in the way you may immediately think, because you cant animate or create a transition around the properties you'd otherwise rely on (e.g. display , or changing dimensions and setting to overflow:hidden ) in order to correctly hide the element and prevent it from taking up visible space. Therefore,