82 lines
2.7 KiB
Plaintext
82 lines
2.7 KiB
Plaintext
/*
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* Copyright (C) 2024 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the 'License');
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an 'AS IS' BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { connection } from '@kit.NetworkKit'
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import { List } from '@kit.ArkTS'
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import { ImageKnifeRequest,ImageKnife,ImageKnifeComponent } from '@ohos/libraryimageknife'
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@Entry
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@Component
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struct ImageKnifeReload {
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aboutToAppear(): void {
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NetWatchState.init()
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}
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build() {
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Column() {
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ImageKnifeComponent({
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imageKnifeOption:{
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loadSrc:'https://hbimg.huabanimg.com/95a6d37a39aa0b70d48fa18dc7df8309e2e0e8e85571e-x4hhks_fw658/format/webp',
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placeholderSrc:$r('app.media.loading'),
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errorholderSrc:$r('app.media.failed'),
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onLoadListener:{
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onLoadFailed(err,request){
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NetWatchState.requestList.add(request)
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}
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}
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}
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}).width(200).height(200)
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ImageKnifeComponent({
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imageKnifeOption:{
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loadSrc:'https://img-blog.csdn.net/20140514114029140',
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placeholderSrc:$r('app.media.loading'),
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errorholderSrc:$r('app.media.failed'),
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onLoadListener:{
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onLoadFailed(err,request){
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NetWatchState.requestList.add(request)
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}
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}
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}
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}).width(200).height(200).margin({top:10})
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}.width('100%')
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.height('100%')
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}
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}
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class NetWatchState {
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public static netConnection: connection.NetConnection | undefined = undefined
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public static requestList: List<ImageKnifeRequest> = new List()
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static init() {
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NetWatchState.netConnection = connection.createNetConnection()
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// 注册订阅事件
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NetWatchState.netConnection.register(()=>{
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})
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// 订阅网络能力变化事件。调用register后，才能接收到此事件通知
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NetWatchState.netConnection.on('netCapabilitiesChange',(data:connection.NetCapabilityInfo)=>{
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if(NetWatchState.requestList.length > 0 && data.netHandle.netId >= 100) {
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NetWatchState.requestList.forEach((request)=>{
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ImageKnife.getInstance().reload(request)
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NetWatchState.requestList.remove(request)
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})
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}
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})
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}
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static cancel(){
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if(NetWatchState.netConnection != undefined) {
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// 取消订阅
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NetWatchState.netConnection.unregister(()=>{})
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}
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}
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} |