BannerComponent.ets
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import { CompDTO, ContentDTO, DelayTimeEnum } from 'wdBean';
import { CommonConstants } from 'wdConstant';
import { Logger } from 'wdKit';
import { CompUtils } from '../utils/CompUtils';
import { EmptyComponent } from './EmptyComponent';
const TAG = 'BannerComponent';
/**
* 轮播组件,即Banner/轮播大图/焦点图/自动滑动
* 样式：
* 'Carousel_Layout-01', // 通用轮播卡：视频、直播、活动、专题、榜单、外链
*/
@Component
export struct BannerComponent {
@StorageLink('currentBreakpoint') @Watch('watchCurrentBreakpoint') currentBreakpoint: string = 'xs';
@State compDTO: CompDTO = {} as CompDTO
watchCurrentBreakpoint() {
Logger.info(TAG, `watchCurrentBreakpoint, this.currentBreakpoint: ${this.currentBreakpoint}`);
}
aboutToAppear() {
Logger.info(TAG, `aboutToAppear, beanList:${this.compDTO?.operDataList?.length}, currentBreakpoint:${this.currentBreakpoint}`);
}
aboutToDisappear() {
Logger.info(TAG, 'aboutToDisappear');
}
onPageShow() {
Logger.info(TAG, 'onPageShow');
}
onPageHide() {
Logger.info(TAG, 'onPageHide');
}
onBackPress() {
Logger.info(TAG, 'onBackPress');
}
build() {
if (this.compDTO && this.compDTO?.operDataList?.length > 0) {
Swiper() {
ForEach(this.compDTO?.operDataList, (item: ContentDTO, index: number) => {
this.buildItemBanner01(item, index)
})
}
.displayCount(1) // 仅展示1个图片
.cachedCount(2)
.index(1) // The default index of Swiper.
.autoPlay(true)
.interval(DelayTimeEnum.INTERVAL_4000)
.indicator(Indicator.dot()
.right(5)
.itemWidth(4)
.itemHeight(4)
.selectedItemWidth(10)
.selectedItemHeight(6))
.loop(true)
.duration(DelayTimeEnum.DURATION_1000)
.vertical(false)
.curve(Curve.Linear)
.onChange((index: number) => {
Logger.info(TAG, `Swiper onChange index : ${index}`);
})
} else {
EmptyComponent({ emptyHeight: 200 })
}
}
// public buildDisplayCount(): number {
// return new BreakPointType({ xs: 1, sm: 1, md: 2, lg: 3 }).getValue(this.currentBreakpoint)
// }
/**
* 组件项
*
* @param programmeBean item 组件项
*/
@Builder
buildItemBanner01(item: ContentDTO, index: number) {
RelativeContainer() {
Image(item.hImageUrl)
.width(CommonConstants.FULL_PARENT)
.height(CommonConstants.FULL_PARENT)
.objectFit(ImageFit.Cover)
.borderRadius($r("app.float.border_radius_6"))
.alignRules({
top: { anchor: '__container__', align: VerticalAlign.Top },
left: { anchor: '__container__', align: HorizontalAlign.Start }
})
.id('img_cover')
// if (item.topLeftTipImgUrl) {
// Image(item.topLeftTipImgUrl)
// .width(CompCornerUtil.getCornerWidth(this.currentBreakpoint))
// .aspectRatio(CompCornerUtil.ASPECT_RATIO_75_45)
// .margin({ left: 6 })
// .objectFit(ImageFit.Cover)
// .alignRules({
// top: { anchor: '__container__', align: VerticalAlign.Top },
// left: { anchor: '__container__', align: HorizontalAlign.Start }
// })
// .id('img_corner_top_Left')
// }
Text(item.title)
.width(CommonConstants.FULL_PARENT)
.height(39)
.padding({ left: 8, right: 69, bottom: 8 })
.fontColor(Color.White)
.fontSize($r('app.float.font_size_16'))
.fontWeight(FontWeight.Medium)
.textAlign(TextAlign.Start)
.align(Alignment.Bottom)
.maxLines(CompUtils.MAX_LINES_1)
.textOverflow({ overflow: TextOverflow.Ellipsis })
.linearGradient({
direction: GradientDirection.Top, // 渐变方向:to Top/从下往上
colors: [[0x7508111A, 0.0], [0x7508111A, 0.3], [Color.Transparent, 1.0]]
})
.alignRules({
bottom: { anchor: '__container__', align: VerticalAlign.Bottom },
left: { anchor: '__container__', align: HorizontalAlign.Start }
})
.id('txt_name')
}
.width(CommonConstants.FULL_PARENT)
.aspectRatio(CompUtils.ASPECT_RATIO_2_1)
.hoverEffect(HoverEffect.Scale)
.onClick((event: ClickEvent) => {
Logger.info(TAG, `BannerComponent onClick event index: ${index}`);
})
}
}