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src/utils/common.ts

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+import Taro from '@tarojs/taro'
+
+export default function navTo(url: string, isLogin = false) {
+  if (isLogin) {
+    if (!Taro.getStorageSync('access_token')) {
+      Taro.showToast({
+        title: '请先登录',
+        icon: 'none',
+        duration: 500
+      });
+      return false;
+    }
+  }
+  Taro.navigateTo({
+    url: url
+  })
+}
+
+
+// 转base64
+export function fileToBase64(filePath) {
+  return new Promise((resolve) => {
+    let fileManager = Taro.getFileSystemManager();
+    fileManager.readFile({
+      filePath,
+      encoding: 'base64',
+      success: (e: any) => {
+        resolve(`data:image/jpg;base64,${e.data}`);
+      }
+    });
+  });
+};
+
+/**
+ * 转义微信富文本图片样式
+ * @param htmlText
+ */
+export function wxParse(htmlText) {
+  // Replace <img> tags with max-width and height styles
+  htmlText = htmlText.replace(/\<img/gi, '<img style="max-width:100%;height:auto;"');
+
+  // Replace style attributes that do not contain text-align
+  htmlText = htmlText.replace(/style\s*?=\s*?(['"])(?!.*?text-align)[\s\S]*?\1/ig, 'style="max-width:100%;height:auto;"');
+
+  return htmlText;
+}
+
+
+export function copyText(text: string) {
+  Taro.setClipboardData({
+    data: text,
+    success: function () {
+      Taro.showToast({
+        title: '复制成功',
+        icon: 'success',
+        duration: 2000
+      });
+    },
+    fail: function () {
+      Taro.showToast({
+        title: '复制失败',
+        icon: 'none',
+        duration: 2000
+      });
+    }
+  });
+}