feat: webview

src/platforms/app-plus/view/components/web-view/index.vue

+<template>
+  <uni-web-view />
+</template>
+<script>
+let webview = false
+const insertHTMLWebView = ({
+  htmlId
+}) => {
+  const parentWebview = plus.webview.currentWebview()
+  // fixed by hxy web-view 组件所在的 webview 不注入 uni-app 框架
+  const styles = {
+    'uni-app': 'none'
+  }
+  const parentTitleNView = parentWebview.getTitleNView()
+  if (parentTitleNView) {
+    styles.top = 44 + plus.navigator.getStatusbarHeight()
+    styles.bottom = 0
+  }
+  webview = plus.webview.create('', htmlId, styles)
+  if (parentTitleNView) {
+    webview.addEventListener('titleUpdate', function () {
+      let title = webview.getTitle()
+      parentWebview.setStyle({
+        titleNView: {
+          titleText: (!title || title === 'null') ? '' : title
+        }
+      })
+    })
+  }
+  plus.webview.currentWebview().append(webview)
+}
+
+const updateHTMLWebView = ({
+  htmlId,
+  src,
+  webviewStyles
+}) => {
+  // fixed by xxx 非空时才执行更新操作
+  const realPath = src || ''
+  if (!realPath) {
+    return
+  }
+  if (/^(http|https):\/\//.test(realPath) && webviewStyles.progress) {
+    webview.setStyle({
+      progress: {
+        color: webviewStyles.progress.color
+      }
+    })
+  }
+  webview.loadURL(realPath)
+}
+
+const removeHTMLWebView = () => {
+  plus.webview.currentWebview().remove(webview)
+  webview.close('none')
+  webview = false
+}
+
+export default {
+  name: 'WebView',
+  props: {
+    src: {
+      type: String,
+      default: ''
+    },
+    webviewStyles: {
+      type: Object,
+      default () {
+        return {}
+      }
+    }
+  },
+  watch: {
+    src (val, oldVal) {
+      webview && updateHTMLWebView({
+        src: this.$getRealPath(val),
+        webviewStyles: this.webviewStyles
+      })
+    }
+  },
+  mounted () {
+    this.htmlId = 'webviewId' + this.$page.id
+    insertHTMLWebView({
+      htmlId: this.htmlId
+    })
+    updateHTMLWebView({
+      src: this.$getRealPath(this.src),
+      webviewStyles: this.webviewStyles
+    })
+  },
+  beforeDestroy () {
+    removeHTMLWebView()
+  }
+}
+</script>
+<style>
+  uni-web-view {
+    position: absolute;
+    left: 0;
+    right: 0;
+    top: 0;
+    bottom: 0;
+  }
+</style>