[英]How do i make the image to slide move to the right from left 0,0 position to the end right side?
我有以下代码:
<script type="text/javascript">
var animate, left=0, imgObj=null;
function init(){
imgObj = document.getElementById('myImage');
imgObj.style.position= 'absolute';
imgObj.style.top = '240px';
imgObj.style.left = '-300px';
imgObj.style.visibility='hidden';
moveRight();
}
function moveRight(){
left = parseInt(imgObj.style.left, 10);
if (10 >= left) {
imgObj.style.left = (left + 5) + 'px';
imgObj.style.visibility='visible';
animate = setTimeout(function(){moveRight();},20);
} else {
stop();
}
}
function stop(){
clearTimeout(animate);
}
window.onload = function() {init();};
</script>
<img id="myImage" src="http://newsxpressmedia.com/files/radar-simulation-files/radar007339.Gif" style="margin-left:170px;" />
它的作用是将屏幕中间的一幅图像从左侧移动到中心。 但是我想要它做的是将图像从左上角0,0移动到右侧的末端到右上边界,而不是停止,但是图像将再次从右移到剩下。
我从不了解这个px值。 现在将其设置为顶部240,并保留-300。 我试图将其更改为0和0,但是它没有放在左上角,并且图像完全没有移动。
如何更改代码,这样它将开始将图像从左上角移至右上角,并且如何添加更多图像,以使其像幻灯片一样从左到右不停地移动?
结合javascript和CSS转换以获得最佳结果
<style>
img {
position: absolute;
width: 100px;
height: 100px;
left: 0;
top: 0;
transition-property: left;
transition-duration: 2s;
}
</style>
<img src="pic.jpg">
<script>
function animate() {
var img = document.getElementsByTagName('img')[0];
var img_width = 100;
var window_width = window.innerWidth;
img.style.left = window_width - img_width;
}
function init() {
setTimeout(animate, 1000);
}
window.onload = init();
</script>
尝试这个:
<script>
var animate, left=0, imgObj=null, right;
function init(){
imgObj = document.getElementById('myImage');
imgObj.style.position= 'absolute';
imgObj.style.top = 0;
imgObj.style.left = 0;
imgObj.style.visibility='visible';
right = document.documentElement.clientWidth - imgObj.width;
moveRight();
}
function moveRight(){
if (left < right) {
left += 5;
imgObj.style.left = Math.min(left, right) + 'px';
animate = setTimeout(moveRight,20); // call moveRight in 20msec
}
}
window.onload = init;
</script>
<img id="myImage" src="http://newsxpressmedia.com/files/radar-simulation-files/radar007339.Gif" />
现在,您的第二个问题是 :
如何添加更多图像,以便像幻灯片一样将它们从左到右不停地移动?
您只需要更改一点代码,就可以处理多个图像:
<script>
var imgObjs=null;
function init(){
imgObjs = document.getElementsByTagName('img');
for(var i = imgObjs.length; i--; ) {
var imgObj = imgObjs[i];
imgObj.style.position='absolute';
imgObj.style.top = 0;
imgObj.style.display='none';
}
moveImage(0);
}
function moveImage(i) {
var imgObj = imgObjs[i],
right = document.documentElement.clientWidth - imgObj.width;
left = imgObj.style.left = 0;
imgObj.style.display='block';
function moveRight(){
if (left < right) {
left += 5;
imgObj.style.left = Math.min(left, right) + 'px';
setTimeout(moveRight,20); // call moveRight in 20msec
} else {
imgObj.style.display='none';
moveImage((i+1)%imgObjs.length);
}
}
moveRight();
}
window.onload = init;
</script>
<img src="http://newsxpressmedia.com/files/radar-simulation-files/radar007337.Gif" />
<img src="http://newsxpressmedia.com/files/radar-simulation-files/radar007338.Gif" />
<img src="http://newsxpressmedia.com/files/radar-simulation-files/radar007339.Gif" />
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