详解mpvue中小程序自定义导航组件开发指南

<template>
  <div class="comp-navbar">
    <!-- 占位栏 -->
    <cover-view class="placeholder-bar" :style="{height: navBarHeight + 'px'}"> </cover-view>
    <!-- 导航栏主体 -->
    <cover-view class="navbar" :style="{height: navBarHeight + 'px',backgroundColor:navBackgroundColor}">
      <!-- 状态栏 -->
      <cover-view class="nav-statusbar" :style="{height: statusBarHeight + 'px'}"></cover-view>
      <!-- 标题栏 -->
      <cover-view class="nav-titlebar" :style="{height: titleBarHeight + 'px' }">
        <!-- home及后退键 -->
        <cover-view class="bar-options">
          <cover-view v-if="backVisible" class="opt opt-back" @click="backClick()">
          <cover-image class="back-image" src="/static/images/back.png"></cover-image>
          </cover-view>
          <cover-view class="line" v-if="backVisible && homePath"></cover-view>
          <cover-view v-if="homePath" class="opt opt-home" @click="homeClick()">
          <cover-image class="home-image" src="/static/images/home.png"></cover-image>
          </cover-view>
        </cover-view>
        <!-- 标题 -->
        <cover-view class="bar-title" :style="[{color:titleColor}]">{{title}}</cover-view>
      </cover-view>
    </cover-view>
  </div>
</template>

  beforeMount() {
    const self = this;
    wx.getSystemInfo({
      success(system) {
        console.log(`system:`, system);
        self.statusBarHeight = system.statusBarHeight;
        self.platform = system.platform;

        let platformReg = /ios/i;
        if (platformReg.test(system.platform)) {
          self.titleBarHeight = 44;
        } else {
          self.titleBarHeight = 48;
        }

        self.navBarHeight = self.statusBarHeight + self.titleBarHeight;
      }
    });
  },

<navigation-bar :title="videoTitle"
  :navBackgroundColor="'pink'"
  :titleColor="'green'"
  :back-visible="true"
  :home-path="'/pages/index/main'"></navigation-bar>