备份

pages/mybusiness/index.js

@@ -107,8 +107,51 @@ Page( {
       that.setData({
         savetitle:"保存中，请稍候..."
       })
+      
+      // 检查权限
+      wx.getSetting({
+        success: function(res) {
+          if (!res.authSetting['scope.writePhotosAlbum']) {
+            // 未授权，请求授权
+            wx.authorize({
+              scope: 'scope.writePhotosAlbum',
+              success: function() {
+                // 授权成功，执行保存
+                that.saveImage();
+              },
+              fail: function() {
+                // 授权失败，引导用户去设置
+                wx.showModal({
+                  title: '提示',
+                  content: '需要授权保存到相册权限',
+                  confirmText: '去授权',
+                  success: function(res) {
+                    if (res.confirm) {
+                      wx.openSetting({
+                        success: function(settingRes) {
+                          if (settingRes.authSetting['scope.writePhotosAlbum']) {
+                            that.saveImage();
+                          }
+                        }
+                      })
+                    }
+                  }
+                })
+              }
+            })
+          } else {
+            // 已授权，直接保存
+            that.saveImage();
+          }
+        }
+      })
+    },
+    
+    // 提取保存图片的逻辑到单独函数
+    saveImage: function() {
       var userId = wx.getStorageSync("userId")
       var LoginId = wx.getStorageSync("LoginId")
+      
       wx.canvasToTempFilePath({
         canvasId: "myCanvas",
         destWidth: 520,
@@ -140,30 +183,11 @@ Page( {
             },
             fail: function(err) {
               console.log('saveImageToPhotosAlbum fail:', err);
-              if (err.errMsg.indexOf('auth deny') > -1 || err.errMsg.indexOf('authorize') > -1) {
-                wx.showModal({
-                  title: '提示',
-                  content: '需要授权保存到相册权限',
-                  confirmText: '去授权',
-                  success: function (res) {
-                    if (res.confirm) {
-                      wx.openSetting({
-                        success: function(settingRes) {
-                          if (settingRes.authSetting['scope.writePhotosAlbum']) {
-                            that.onxz(e);
-                          }
-                        }
-                      })
-                    }
-                  }
-                })
-              } else {
-                wx.showToast({
-                  title: '保存失败：' + err.errMsg,
-                  icon: "none",
-                  duration: 3000
-                })
-              }
+              wx.showToast({
+                title: '保存失败：' + err.errMsg,
+                icon: "none",
+                duration: 3000
+              })
               that.setData({
                 savetitle:"保存商家收款码到相册"
               })