一、效果图
二、方法
改变elementUI 的主要色 --el-color-primary 为自己选择的颜色,核心代码如下:
javascript
// 处理主题样式
export function handleThemeStyle(theme) {
document.documentElement.style.setProperty('--el-color-primary', theme)
}
三、全部代码
javascript
// 处理主题样式
export function handleThemeStyle(theme) {
document.documentElement.style.setProperty('--el-color-primary', theme)
for (let i = 1; i <= 9; i++) {
document.documentElement.style.setProperty(`--el-color-primary-light-${i}`, `${getLightColor(theme, i / 10)}`)
}
for (let i = 1; i <= 9; i++) {
document.documentElement.style.setProperty(`--el-color-primary-dark-${i}`, `${getDarkColor(theme, i / 10)}`)
}
}
// hex颜色转rgb颜色
export function hexToRgb(str) {
str = str.replace('#', '')
let hexs = str.match(/../g)
for (let i = 0; i < 3; i++) {
hexs[i] = parseInt(hexs[i], 16)
}
return hexs
}
// rgb颜色转Hex颜色
export function rgbToHex(r, g, b) {
let hexs = [r.toString(16), g.toString(16), b.toString(16)]
for (let i = 0; i < 3; i++) {
if (hexs[i].length == 1) {
hexs[i] = `0${hexs[i]}`
}
}
return `#${hexs.join('')}`
}
// 变浅颜色值
export function getLightColor(color, level) {
let rgb = hexToRgb(color)
for (let i = 0; i < 3; i++) {
rgb[i] = Math.floor((255 - rgb[i]) * level + rgb[i])
}
return rgbToHex(rgb[0], rgb[1], rgb[2])
}
// 变深颜色值
export function getDarkColor(color, level) {
let rgb = hexToRgb(color)
for (let i = 0; i < 3; i++) {
rgb[i] = Math.floor(rgb[i] * (1 - level))
}
return rgbToHex(rgb[0], rgb[1], rgb[2])
}