HarmonyOS 鸿蒙Next：通过@ohos.promptAction弹出toast，toast不能设置背景颜色吗

import { DiyLayout } from '../../common/utils'
//构建一个构造函数
export class ToastUtill {
type: string //success  error
show: boolean
message: string
timer: number
constructor() {
this.type = ‘success’
this.show = false
this.message = ‘’
this.timer = 0
}
showToast(type: string, message: string, duration: number = 1000) {
this.message = message
this.type = type
this.show = true
if (this.timer) {
clearTimeout(this.timer)
}
this.timer = setTimeout(() => {
this.show = false
}, duration)
}
}
@Component
export struct DiyToast {
@Prop toastData: ToastUtill
build() {
if (this.toastData.show) {
if (this.toastData.type == ‘success’) {
Row() {
Row() {
Text(this.toastData.message)
.fontColor(Color.White)
.fontSize(DiyLayout.px2fp(42))
.fontWeight(FontWeight.Bold)
}.width(‘100%’).height(‘100%’).alignItems(VerticalAlign.Center).justifyContent(FlexAlign.Center)
}
.baseStyle()
.successStyle()
}
if (this.toastData.type == ‘error’) {
Row() {
Row() {
Text(this.toastData.message)
.fontColor(Color.White)
.fontSize(DiyLayout.px2fp(42))
.fontWeight(FontWeight.Bold)
}.width(‘100%’).height(‘100%’).alignItems(VerticalAlign.Center).justifyContent(FlexAlign.Center)
}
.baseStyle()
.errorStyle()
}
}
}
}
@Styles
function successStyle() {
.backgroundColor(‘rgba(0, 140, 123, 0.7)’)
}
@Styles
function errorStyle() {
.backgroundColor(‘rgba(177, 23, 69, 0.7)’)
}
@Styles
function baseStyle() {
.position({ x: DiyLayout.px2vp_w(140), y: DiyLayout.px2vp_h(864) })
.zIndex(99)
.width(DiyLayout.px2vp_w(800))
.height(DiyLayout.px2vp_h(192))
.borderRadius(DiyLayout.px2fp(24))
}<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>

写自定义组件吧
 

import { DiyToast, ToastUtill } from ‘…/…/components/toast/index’

…
@State toastData: ToastUtill = new ToastUtill()
…
this.toastData.showToast(‘error’,‘请填写账号密码111’, 1000)
<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>