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@ -3,14 +3,20 @@ import { |
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MESSAGE_STATUS |
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} from '@/common/enums.js'; |
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import userStore from './userStore'; |
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/* |
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uniapp性能优化： |
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1.由于uniapp渲染消息性能非常拉胯,所以先把离线消息存储到cacheChats,等 |
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待所有离线消息拉取完成后，再统一进行渲染 |
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2.在vuex中对数组进行unshift,splice特别卡，所以删除会话、会话置顶、删 |
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除消息等操作进行优化，不通过unshift,splice实现，改造方案如下： |
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删除会话： 通过delete标志判断是否删除 |
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删除消息：通过delete标志判断是否删除 |
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会话置顶：通过lastSendTime排序确定会话顺序 |
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*/ |
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/* uniapp渲染消息性能非常拉胯，所以这里先把离线消息存储到cacheChats, |
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等待所有离线消息拉取完成后，再统一进行渲染 */ |
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let cacheChats = []; |
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export default { |
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state: { |
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activeIndex: -1, |
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chats: [], |
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privateMsgMaxId: 0, |
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groupMsgMaxId: 0, |
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@ -20,14 +26,19 @@ export default { |
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mutations: { |
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initChats(state, chatsData) { |
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// 暂存至缓冲区
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cacheChats = JSON.parse(JSON.stringify(chatsData.chats)) |
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// 只取前10条数据做做样子,一切都为了加快初始化时间
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let size = Math.min(chatsData.chats.length,10); |
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for (let i = 0; i < size; i++) { |
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let chat = chatsData.chats[i]; |
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chat.messages = []; |
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state.chats[i] = chat; |
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cacheChats = []; |
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for (let chat of chatsData.chats) { |
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// 已删除的会话直接丢弃
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if (chat.delete) { |
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continue; |
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} |
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// 暂存至缓冲区
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cacheChats.push(JSON.parse(JSON.stringify(chat))); |
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// 加载期间显示只前15个会话做做样子,一切都为了加快初始化时间
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if (state.chats.length < 15) { |
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chat.messages = []; |
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state.chats.push(chat); |
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} |
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} |
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state.privateMsgMaxId = chatsData.privateMsgMaxId || 0; |
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state.groupMsgMaxId = chatsData.groupMsgMaxId || 0; |
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@ -48,6 +59,7 @@ export default { |
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if (chats[idx].type == chatInfo.type && |
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chats[idx].targetId === chatInfo.targetId) { |
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chat = chats[idx]; |
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chat.delete = false; |
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// 放置头部
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this.commit("moveTop", idx) |
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break; |
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@ -65,15 +77,15 @@ export default { |
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unreadCount: 0, |
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messages: [], |
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atMe: false, |
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atAll: false |
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atAll: false, |
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delete: false |
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}; |
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chats.unshift(chat); |
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chats.push(chat); |
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this.commit("moveTop", chats.length - 1) |
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} |
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this.commit("saveToStorage"); |
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}, |
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activeChat(state, idx) { |
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let chats = this.getters.findChats(); |
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state.activeIndex = idx; |
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if (idx >= 0) { |
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chats[idx].unreadCount = 0; |
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} |
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@ -109,7 +121,7 @@ export default { |
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}, |
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removeChat(state, idx) { |
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let chats = this.getters.findChats(); |
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chats.splice(idx, 1); |
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chats[idx].delete = true; |
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this.commit("saveToStorage"); |
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}, |
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removePrivateChat(state, userId) { |
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@ -122,17 +134,11 @@ export default { |
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} |
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}, |
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moveTop(state, idx) { |
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// 加载中不移动，防止卡顿
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if (this.getters.isLoading()) { |
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return; |
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} |
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let chats = this.getters.findChats(); |
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if (idx > 0) { |
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let chat = chats[idx]; |
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chats.splice(idx, 1); |
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chats.unshift(chat); |
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this.commit("saveToStorage"); |
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} |
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let chat = chats[idx]; |
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// 最新的时间会显示在顶部
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chat.lastSendTime = new Date().getTime(); |
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this.commit("saveToStorage"); |
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}, |
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insertMessage(state, msgInfo) { |
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// 获取对方id或群id
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@ -233,13 +239,13 @@ export default { |
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for (let idx in chat.messages) { |
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// 已经发送成功的，根据id删除
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if (chat.messages[idx].id && chat.messages[idx].id == msgInfo.id) { |
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chat.messages.splice(idx, 1); |
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chat.messages[idx].delete = true; |
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break; |
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} |
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// 正在发送中的消息可能没有id，根据发送时间删除
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if (msgInfo.selfSend && chat.messages[idx].selfSend && |
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chat.messages[idx].sendTime == msgInfo.sendTime) { |
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chat.messages.splice(idx, 1); |
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chat.messages[idx].delete = true; |
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break; |
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} |
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} |
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@ -271,24 +277,23 @@ export default { |
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}, |
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loadingPrivateMsg(state, loadding) { |
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state.loadingPrivateMsg = loadding; |
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if (!state.loadingPrivateMsg && !state.loadingGroupMsg) { |
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if (!this.getters.isLoading()) { |
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this.commit("refreshChats") |
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} |
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}, |
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loadingGroupMsg(state, loadding) { |
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state.loadingGroupMsg = loadding; |
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if (!state.loadingPrivateMsg && !state.loadingGroupMsg) { |
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if (!this.getters.isLoading()) { |
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this.commit("refreshChats") |
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} |
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}, |
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refreshChats(state) { |
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// 排序
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cacheChats.sort((chat1, chat2) => { |
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return chat2.lastSendTime - chat1.lastSendTime; |
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}); |
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// 将消息一次性装载回来,只显示前30个会话，多了卡的不行
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state.chats = JSON.parse(JSON.stringify(cacheChats.slice(0,30))) |
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// 将消息一次性装载回来
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state.chats = cacheChats; |
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this.commit("saveToStorage"); |
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}, |
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saveToStorage(state) { |
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@ -305,12 +310,12 @@ export default { |
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} |
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uni.setStorage({ |
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key: key, |
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data: chatsData |
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data: chatsData , |
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}) |
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}, |
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clear(state) { |
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cacheChats = []; |
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state.chats = []; |
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state.activeIndex = -1; |
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state.privateMsgMaxId = 0; |
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state.groupMsgMaxId = 0; |
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state.loadingPrivateMsg = false; |
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blue
2 years ago