[update] queryCanvas 方法失败时调用 reject

README.md

@@ -6,9 +6,9 @@
 </div>
 <br />
 <div align="center">
-    <img src="https://img.shields.io/badge/version-2.4.0-blue?style=flat-square&logo" />
-    <img src="https://img.shields.io/badge/total%20%20size-33.28%20%20KB-brightgreen?style=flat-square&logo" />
-    <img src="https://img.shields.io/badge/main%20%20size-6.90%20%20KB-brightgreen?style=flat-square&logo" />
+    <img src="https://img.shields.io/badge/version-2.4.1-blue?style=flat-square&logo" />
+    <img src="https://img.shields.io/badge/total%20%20size-33.33%20%20KB-brightgreen?style=flat-square&logo" />
+    <img src="https://img.shields.io/badge/main%20%20size-6.95%20%20KB-brightgreen?style=flat-square&logo" />
     <img src="https://img.shields.io/npm/dt/wx-canvas-2d.svg?style=flat-square&logo=appveyor&logo" />
     <br />
     <img src="https://img.shields.io/github/issues/kiccer/wx-canvas-2d?style=flat-square&logo=appveyor&logo" />

package.json

@@ -1,6 +1,6 @@
 {
     "name": "wx-canvas-2d",
-    "version": "2.4.0",
+    "version": "2.4.1",
     "description": "微信小程序 canvas-2d 绘图工具，支持按需引用，支持内容配置，支持功能扩展，适配各种机型，超轻量，超易用，无需学习，直接上手。",
     "main": "miniprogram_dist",
     "miniprogram": "miniprogram_dist",
@@ -29,15 +29,16 @@
         "webpack-cli": "^4.1.0"
     },
     "scripts": {
-        "gulp-dev": "gulp",
+        "gulp-dev": "gulp --watch",
+        "gulp-build": "gulp",
         "dev": "exit && webpack --config webpack.config.js",
         "lint-fix": "eslint --fix --ext .js pages components res app.js",
         "test": "echo \"Error: no test specified\" && exit 1",
         "docs:dev": "vuepress dev doc",
         "docs:build": "vuepress build doc",
         "postinstall": "node ./postinstall.js",
         "build:postinstall": "node ./scripts/postinstall-build.js",
-        "prepublish": "npm run build:md & npm run build:postinstall",
+        "prepublish": "npm run gulp-build && (npm run build:md & npm run build:postinstall)",
         "build:md": "node ./scripts/md.js"
     },
     "repository": {

plugin/WxCanvas2d.js

@@ -80,6 +80,8 @@ class WxCanvas2d {
                 // this.ctx.scale(this.dpr, this.dpr)
 
                 resolve()
+            }).catch(err => {
+                reject(err)
             })
         })
     }
@@ -188,6 +190,8 @@ class WxCanvas2d {
 
                 this.debugLogout('开始绘制')
                 next() // 开始按顺序绘制图层
+            }).catch(err => {
+                reject(err)
             })
         })
     }