我正在尝试制作新的Chrome扩展程序,我需要图标自动更改为带有图像数组的gif,并永远重复。我的问题是我无法使Javascript循环起作用。这就是我所拥有的:
var min = 1;
var max = 12;
var current = min;
if (current > max)
current = min;
}
var keep_switching_icon = true;
function rotateIcon()
{
if ( keep_switching_icon )
{
chrome.browserAction.setIcon({path:"icon" + current + ".png"});
current++;
window.setTimeout(rotateIcon, 300);
}
}
答案 0 :(得分:2)
我可以使用setInterval为我的徽章图标设置动画。在这里查看完整帖子:https://timleland.com/animated-badge-icon/
setInterval(function() {
var rotation = parseInt(((new Date() - start) / 1000) * lines) / lines;
context.save();
context.clearRect(0, 0, cW, cH);
context.translate(cW / 2, cH / 2);
context.rotate(Math.PI * 2 * rotation);
for (var i = 0; i < lines; i++) {
context.beginPath();
context.rotate(Math.PI * 2 / lines);
context.moveTo(cW / 10, 0);
context.lineTo(cW / 4, 0);
context.lineWidth = cW / 30;
context.strokeStyle = 'rgba(0, 0, 0,' + i / lines + ')';
context.stroke();
}
var imageData = context.getImageData(10, 10, 19, 19);
chrome.browserAction.setIcon({
imageData: imageData
});
context.restore();
}, 1000 / 30);
答案 1 :(得分:1)
应该做一些改变:
current > max
醇>
console.clear();
var min = 1;
var max = 12;
var current = min;
var keep_switching_icon = true;
function rotateIcon() {
if (keep_switching_icon) {
//chrome.browserAction.setIcon({path:"icon" + current + ".png"});
console.log(current);
if (current++ > max) {
current = min;
};
window.setTimeout(rotateIcon, 300);
}
}
rotateIcon();
只需代替console.log(current)
,取消注释chrome.browserAction
函数调用并删除第一行。