web-view.uvue

<template>
  <view class="uni-flex-item">
    <web-view id="web-view" class="uni-flex-item" :src="src" :webview-styles="webview_styles"
      :horizontalScrollBarAccess="horizontalScrollBarAccess" :verticalScrollBarAccess="verticalScrollBarAccess"
      @message="message" @error="error" @loading="loading" @load="load" @download="download">
    </web-view>
    <!-- #ifdef APP -->
    <view class="uni-padding-wrap uni-common-mt">
      <view class="uni-btn-v">
        <input class="uni-input" confirmType="go" placeholder="输入网址跳转" @confirm="confirm" maxlength="-1"/>
      </view>
      <view class="uni-row uni-btn-v">
        <button class="uni-flex-item" type="primary" @click="back">后退</button>
        <button class="margin-left-5 uni-flex-item" type="primary" @click="forward">前进</button>
      </view>
      <view class="uni-row uni-btn-v">
        <button class="uni-flex-item" type="primary" @click="reload">重新加载</button>
        <button class="margin-left-5 uni-flex-item" type="primary" @click="stop">停止加载</button>
      </view>
      <view class="uni-btn-v">
        <button type="primary" @click="nativeToWeb">原生和Web通信</button>
      </view>
      <!-- #ifdef APP-ANDROID -->
      <view class="uni-row uni-btn-v">
        <view class="uni-row uni-flex-item align-items-center">
          <text>显示横向滚动条</text>
          <switch :checked="true" @change="changeHorizontalScrollBarAccess"></switch>
        </view>
        <view class="uni-row uni-flex-item align-items-center">
          <text>显示竖向滚动条</text>
          <switch :checked="true" @change="changeVerticalScrollBarAccess"></switch>
        </view>
      </view>
      <!-- #endif -->
    </view>
    <!-- #endif -->
  </view>
</template>

<script>
  export default {
    data() {
      return {
        src: 'https://www.dcloud.io',
        webview_styles: {
          progress: {
            color: '#FF3333'
          }
        },
        webviewContext: null as WebviewContext | null,
        loadError: false,
        horizontalScrollBarAccess: true,
        verticalScrollBarAccess: true
      }
    },
    onReady() {
      // #ifdef APP
      // TODO web 实现createWebviewContext
      this.webviewContext = uni.createWebviewContext('web-view', this)
      // #endif
    },
    methods: {
      back() {
        this.webviewContext?.back();
      },
      forward() {
        this.webviewContext?.forward();
      },
      reload() {
        this.webviewContext?.reload();
      },
      stop() {
        this.webviewContext?.stop();
      },
      nativeToWeb() {
        this.webviewContext?.evalJS("alert('hello uni-app x')");
      },
      message(event : UniWebViewMessageEvent) {
        console.log(JSON.stringify(event));
      },
      error(event : UniWebViewErrorEvent) {
        this.loadError = true
        console.log(JSON.stringify(event));
      },
      loading(event : UniWebViewLoadingEvent) {
        console.log(JSON.stringify(event));
      },
      load(event : UniWebViewLoadEvent) {
        console.log(JSON.stringify(event));
      },
      download(event : UniWebViewDownloadEvent) {
        console.log(JSON.stringify(event));
        uni.showModal({
          content: "下载链接: " + event.detail.url + "\n文件大小: " + event.detail.contentLength / 1024 + "KB",
          showCancel: false
        });
      },
      confirm(event : UniInputConfirmEvent) {
        console.log(JSON.stringify(event));
        let url = event.detail.value;
        if (!url.startsWith('https://') && !url.startsWith('http://')) {
          url = 'https://' + url;
        }
        this.src = url;
      },
      changeHorizontalScrollBarAccess(event : UniSwitchChangeEvent) {
        this.horizontalScrollBarAccess = event.detail.value;
      },
      changeVerticalScrollBarAccess(event : UniSwitchChangeEvent) {
        this.verticalScrollBarAccess = event.detail.value;
      }
    }
  }
</script>

<style>
  .margin-left-5 {
    margin-left: 5px;
  }

  .align-items-center {
    align-items: center;
  }
</style>