animation

问题 I have a UICollectionViewController that using a standard UICollectionViewFlowLayout to display a single vertical column of cells. I am attempting to create an expand/collapse animation on a cell when a cell is tapped. I use the following code to accomplish this: - (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath (NSIndexPath *)indexPath { [self.feedManager setCurrentlySelectedCellIndex:indexPath.item]; [self.collectionView performBatchUpdates:nil completion

问题 I am using the CSS3 animations from the Animate.css library. They are real nice and they work perfectly when I combine them with WOW.js However, when I am scrolling down the page and the animations go into the screen, my fixed navigation bar on top of the screen disappears for a couple seconds, the time the animation is displaying, and then it goes back into the screen. How can I avoid this to happen? I don´t want my fixed navigation bar to disappear, ever. 回答1: I fixed it! After many tries I

问题 I am trying to make an animation with multiple thread. I want to paint n squares where this n comes from commend-line argument. Every square has their x-y coordinates, colors and speed. They are moving to the right of the frame with different speed, color and coordinates. Since I am using multi thread I assume I have to control each squares. So I have to store each square object in the ArrayList. However, I am having trouble with painting those squares. I can paint one square but when I try

问题 I am trying to make an animation with multiple thread. I want to paint n squares where this n comes from commend-line argument. Every square has their x-y coordinates, colors and speed. They are moving to the right of the frame with different speed, color and coordinates. Since I am using multi thread I assume I have to control each squares. So I have to store each square object in the ArrayList. However, I am having trouble with painting those squares. I can paint one square but when I try

问题 I am trying to make an animation with multiple thread. I want to paint n squares where this n comes from commend-line argument. Every square has their x-y coordinates, colors and speed. They are moving to the right of the frame with different speed, color and coordinates. Since I am using multi thread I assume I have to control each squares. So I have to store each square object in the ArrayList. However, I am having trouble with painting those squares. I can paint one square but when I try

问题 I have a number of divs fixed in the dom in a circular shape, and another div orbiting around them I want to know if the orbiting div touched any one of them to take specific action using javascript the css code responsible for making the #token div orbit around .stations divs using keyframes the javascript code makes the .stations divs in a circular shape $("document").ready(function() { //arrange stations in a circle var block = $("#rotator .station").get(), increase = Math.PI * 2 / block

问题 I'm trying to figure out why it wont morph this path data to another path data, I need to make it look like an real animation. This is my SMIL code: <animate xlink:href="#Barra3" repeatCount="indefinite" attributeName="d" dur="5s" values="M52,346L56,346C61.523,346 66,350.477 66,356L42,356C42,350.477 46.477,346 52,346Z; M54,225C60.627,225 66,230.373 66,237L66,356L42,356L42,237C42,230.373 47.373,225 54,225Z;"/> Here is my codepen: https://codepen.io/joannesalfa/pen/mdPBJxq and go line 181. I'm

问题 This question already has answers here : CSS Animations with delay for each child element (6 answers) Closed 3 years ago . i want my buttons chronologically - the second button start animating after first button ends and so on ... Could somebody help me achieve that effect ? a { padding: 6px; display: block; width: 50px; font-size: 17px; margin: 10px auto; border: 2px solid; text-decoration: none; box-shadow: 0 0 0 rgba(204,169,44, 0.4); animation: pulse 2s infinite; } @keyframes pulse { 0% {

问题 This question already has answers here : CSS Animations with delay for each child element (6 answers) Closed 3 years ago . i want my buttons chronologically - the second button start animating after first button ends and so on ... Could somebody help me achieve that effect ? a { padding: 6px; display: block; width: 50px; font-size: 17px; margin: 10px auto; border: 2px solid; text-decoration: none; box-shadow: 0 0 0 rgba(204,169,44, 0.4); animation: pulse 2s infinite; } @keyframes pulse { 0% {

问题 I am working on something : I need to vizualize the progress of, let us say heat, in time and on a surface. I'm having some troubles animating a pcolormesh with contours : the contour is indeed animated, but the pcolormesh is not ; I only get the first one that is never replaced. My code is quite like this : #x, y and z_temp are previously extracted from an Excel file z=np.zeros(time,y,x) for t in range(time): for m in range(len(y)): for n in range(len(x)): z[t][m][n] = z_temp[t] x,y=np