122 lines
2.9 KiB
Plaintext
122 lines
2.9 KiB
Plaintext
import { BasicConstant } from '../constants/BasicConstant'
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export class HdListController {
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loaded: () => void = () => {
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}
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finished: () => void = () => {
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}
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refreshed: () => void = () => {
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}
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reload: () => void = () => {
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}
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}
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@Component
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export struct HdList {
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@State
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refreshing: boolean = false
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@State
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finished: boolean = false
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@State
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loading: boolean = false
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// options
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lw: number = 0
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@Builder
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defaultListContent() {
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}
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@BuilderParam
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listContent: () => void = this.defaultListContent
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// function
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onLoad: () => void = () => {
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}
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onRefresh: () => void = () => {
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}
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// controller
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controller: HdListController = new HdListController()
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scroller: Scroller = new Scroller()
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aboutToAppear() {
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if (this.controller) {
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this.controller.loaded = () => this.loading = false
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this.controller.finished = () => this.finished = true
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this.controller.refreshed = () => this.refreshing = false
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this.controller.reload = () => {
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this.finished = false
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this.refreshing = true
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}
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}
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}
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@Builder
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loadMoreBuilder() {
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ListItem() {
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if (this.finished) {
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Row() {
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Text($r('app.string.hd_list_finished'))
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.fontColor(Color.Gray)
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.fontSize($r('app.float.hd_list_load_font'))
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}
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.height($r('app.float.hd_list_load_height'))
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.width('100%')
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.justifyContent(FlexAlign.Center)
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} else if (this.loading && !this.finished) {
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Row() {
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LoadingProgress()
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.width($r('app.float.hd_list_load_icon'))
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Text($r('app.string.hd_list_loading'))
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.fontColor(Color.Gray)
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.fontSize($r('app.float.hd_list_load_font'))
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}
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.height($r('app.float.hd_list_load_height'))
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.width('100%')
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.justifyContent(FlexAlign.Center)
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}
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}
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.height($r('app.float.hd_list_load_height'))
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}
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build() {
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Refresh({ refreshing: $$this.refreshing }) {
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List({ scroller: this.scroller }) {
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this.listContent()
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this.loadMoreBuilder()
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}
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.width('100%')
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.height('100%')
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.padding({ left: BasicConstant.SPACE_LG, right: BasicConstant.SPACE_LG })
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// .divider({
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// strokeWidth: $r('app.float.common_border_width'),
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// color: $r('app.color.common_gray_border')
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// })
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.onReachEnd(() => {
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if (this.loading || this.refreshing || this.finished) {
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return;
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}
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this.loading = true
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this.onLoad()
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})
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.scrollBar(BarState.Off)
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.nestedScroll({
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scrollForward: NestedScrollMode.PARENT_FIRST,
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scrollBackward: NestedScrollMode.SELF_FIRST
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})
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.edgeEffect(EdgeEffect.None)
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}
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.width('100%')
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.height('100%')
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.layoutWeight(this.lw)
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.onRefreshing(() => {
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if (this.loading) {
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return;
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}
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this.finished = false
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this.onRefresh()
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// tip: must next tick
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})
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}
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}
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