css - 如何更改MDC-Select下拉箭头的颜色？

我正在尝试在mdc-select中更改下拉箭头的默认紫色：



无礼的mixins似乎都没有这样做。

怎么做？

到目前为止，这是我尝试过的：

的HTML

<div class="mdc-select mdc-select--outlined">
    <input type="hidden" name="enhanced-select">
    <i class="mdc-select__dropdown-icon"></i>
    <div class="mdc-select__selected-text" class="mdc-select__selected-text" role="button" aria-haspopup="listbox" aria-labelledby="demo-label"></div>
    <div class="mdc-select__menu mdc-menu mdc-menu-surface">
        <ul class="mdc-list">
            <li class="mdc-list-item" data-value="41" role="option">41</li>
            <li class="mdc-list-item" data-value="42" role="option">42</li>
            <li class="mdc-list-item" data-value="43" role="option">43</li>
        </ul>
    </div>
    <div class="mdc-notched-outline">
        <div class="mdc-notched-outline__leading"></div>
        <div class="mdc-notched-outline__notch">
            <label class="mdc-floating-label">Answer to Life</label>
        </div>
        <div class="mdc-notched-outline__trailing"></div>
    </div>
</div>

SCSS

@import "@material/list/mdc-list";
@import "@material/menu-surface/mdc-menu-surface";
@import "@material/menu/mdc-menu";
@import "@material/select/mdc-select";

.mdc-select {
    @include mdc-select-ink-color(red);
    // @include mdc-select-container-fill-color(red);
    @include mdc-select-label-color(red);
    @include mdc-select-focused-label-color(red);
    @include mdc-select-bottom-line-color(red);
    @include mdc-select-focused-bottom-line-color(red);
    @include mdc-select-hover-bottom-line-color(red);
    @include mdc-select-outline-color(red);
    @include mdc-select-focused-outline-color(red);
    @include mdc-select-hover-outline-color(red);
    @include mdc-select-icon-color(red);
}

TS

import { MDCSelect } from '@material/select';
const select = new MDCSelect(document.querySelector('.mdc-select'));

最佳答案

这不是图标或字体，该箭头是.mdc-select--focused .mdc-select__dropdown-icon类的背景图像。您可以使用filter css属性更改图像颜色。

filter: hue-rotate(60deg);

将此CSS应用于您自定义的类.mdc-select--focused .mdc-select__dropdown-icon的CSS，它将起作用。

谢谢。

关于css - 如何更改MDC-Select下拉箭头的颜色？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/57870600/