Javascript ListView项目动画-Windows应用商店应用
我在VisualStudio和教程中使用基本网格示例创建了简单的网格应用程序。我希望这个动画可以在所有物品上运行,但它似乎只在第一个物品上运行。我的问题是,如何在所有项目上设置动画?如果可以随机设置动画(不是一次全部设置!例如:Windows8开始菜单) 项目模板:Javascript ListView项目动画-Windows应用商店应用,javascript,animation,windows-8,windows-store-apps,Javascript,Animation,Windows 8,Windows Store Apps,我在VisualStudio和教程中使用基本网格示例创建了简单的网格应用程序。我希望这个动画可以在所有物品上运行,但它似乎只在第一个物品上运行。我的问题是,如何在所有项目上设置动画?如果可以随机设置动画(不是一次全部设置!例如:Windows8开始菜单) 项目模板: <div class="itemtemplate" data-win-control="WinJS.Binding.Template"> <div class="item"> <
<div class="itemtemplate" data-win-control="WinJS.Binding.Template">
<div class="item">
<img class="item-image" src="#" data-win-bind="src: backgroundImage; alt: title" />
<img class="item-image-new" src="#" data-win-bind="src: backgroundImage; alt: title" />
<div class="item-overlay">
<h4 class="item-title" data-win-bind="textContent: title"></h4>
<h6 class="item-subtitle win-type-ellipsis" data-win-bind="textContent: subtitle"></h6>
</div>
</div>
</div>
和间隔,用于更改图像(写入就绪函数中):
调用
document.querySelector
时,它将只返回第一个匹配元素,在您的情况下,它将是第一个列表项。如果你想为任何随机项设置动画,只需调用document.queryselectoral(“.item”)
,从结果列表中选择一个随机项,然后调用querySelector(“.item image”)
,继续当前的操作。我看到你在Windows团队中,所以我希望你能回答我这个问题:谢谢
var darkGray = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXY3B0cPoPAANMAcOba1BlAAAAAElFTkSuQmCC";
var lightGray = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXY7h4+cp/AAhpA3h+ANDKAAAAAElFTkSuQmCC";
var mediumGray = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXY5g8dcZ/AAY/AsAlWFQ+AAAAAElFTkSuQmCC";
// Play the Peek animation
function peekTile(tile1, tile2) {
// Create peek animation
var peekAnimation = WinJS.UI.Animation.createPeekAnimation([tile1, tile2]);
// Reposition tiles to their desired post-animation position
tile1.style.top = "-250px";
tile2.style.top = "0px";
// Execute animation
peekAnimation.execute();
}
function changeImage() {
// Get the two image elements
var images = document.querySelector(".item-image");
var imagesNew = document.querySelector(".item-image-new");
// Swap out the old image source and choose the new image source
images.src = imagesNew.src;
if (images.src == lightGray)
imagesNew.src = mediumGray;
else if (images.src == mediumGray)
imagesNew.src = darkGray;
else
imagesNew.src = lightGray;
// Reset the elements for the pre-animation position and trigger the animation
images.style.top = "0px";
imagesNew.style.top = "250px";
peekTile(images, imagesNew);
};
setInterval(function () { changeImage() }, 4000);