初始化项目模板

hooks/useSharePage.js

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+import { onLoad, onShareAppMessage, onShareTimeline } from '@dcloudio/uni-app';
+
+export function useSharePage(getParams) {
+  const info = uni.getSystemInfoSync();
+  // 页面中仍需要导入onShareAppMessage
+  onShareAppMessage((e) => {
+    if (info.uniPlatform !== 'web' && info.uniPlatform !== 'app') {
+      uni.showShareMenu({
+        withShareTicket: true,
+        menu: ['shareAppMessage', 'shareTimeline'],
+      });
+    }
+    const params = getParams || {}; // 每次分享时获取最新的参数
+    const buttonParams = e.target?.dataset || {};
+    return {
+      title: '',
+      ...params,
+      ...buttonParams,
+    };
+  });
+  // 页面中仍需要导入onShareTimeline
+  onShareTimeline(() => {
+    const params = getParams || {}; // 每次分享时获取最新的参数
+    return {
+      title: '',
+      ...params,
+    };
+  });
+}

hooks/useSystemInfo.js

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+import {
+  ref,
+  onMounted,
+  getCurrentInstance
+} from 'vue'
+
+export function useSystemInfo() {
+  const {
+    proxy
+  } = getCurrentInstance()
+  const systemInfo = ref({})
+  const validHeight = ref(0)
+  const navHeight = ref(0)
+
+  // 获取页面可用高度
+  const getValidHeight = (info) => {
+    const windowHeight = info.windowHeight
+    // 在非tabbar页，ios端预留底部安全高度
+    const safeBottom = info.osName === 'ios' && info.safeAreaInsets.bottom && info.uniPlatform !== 'web' && info
+      .uniPlatform !== 'app' ? 20 : 0
+
+    return windowHeight - safeBottom
+  }
+
+
+  // 获取导航栏高度
+  const getNavHeight = (info) => {
+    let navHeight = 0
+    if (info.uniPlatform === 'mp-weixin') {
+      const custom = uni.getMenuButtonBoundingClientRect();
+      navHeight = custom.height + (custom.top - info.statusBarHeight) * 2;
+    } else if (info.uniPlatform === 'mp-alipay') {
+      navHeight = info.titleBarHeight
+    } else if (info.uniPlatform === 'mp-baidu') {
+      navHeight = info.navigationBarHeight
+    }
+    return navHeight
+  }
+
+  onMounted(() => {
+    systemInfo.value = uni.getSystemInfoSync()
+    validHeight.value = getValidHeight(systemInfo.value)
+    navHeight.value = getNavHeight(systemInfo.value)
+  })
+
+  // 计算dom高度（需要在mounted生命周期后调用）
+  const computedDomHeight = (selectors, selectType = 'select') => {
+    return new Promise(async (resolve, reject) => {
+      let context = uni.createSelectorQuery().in(proxy)
+      if (systemInfo.value.uniPlatform === 'mp-alipay') {
+        context = uni.createSelectorQuery();
+      }
+
+      let domHeight = 0;
+      let domWidth = 0;
+      let queriesCount = 0;
+      let selectorQueries = [];
+
+      // 如果selectors是字符串，则将其转换为单元素数组  
+      if (typeof selectors === 'string') {
+        selectors = [selectors];
+      }
+      if (!Array.isArray(selectors)) {
+        console.error('selectors 必须是字符串或字符串数组')
+        reject(false)
+        return
+      }
+
+      // 长度为0
+      if (!selectors.length) {
+        resolve(0)
+        return
+      }
+
+      // 添加到执行上下文
+      for (let selectorStr of selectors) {
+        context[selectType](selectorStr).boundingClientRect();
+      }
+
+      // 执行查询  
+      context.exec(result => {
+        // 累加高度
+        result.forEach((cur) => {
+          if (cur) {
+            domHeight += cur.height;
+            domWidth += cur.width;
+          }
+        });
+        resolve({
+          height: domHeight,
+          width: domWidth,
+          rect: result
+        });
+      });
+    })
+  }
+
+  return {
+    systemInfo,
+    validHeight,
+    navHeight,
+    computedDomHeight
+  }
+}

hooks/useUsingMobile.js

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+/**
+ * 判断是否为移动端
+ * @returns {Boolean} true为移动端
+ */
+export function useUsingMobile() {
+	const isUsingMobile = /Android|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent);
+	return isUsingMobile;
+}