权限判断

src/App.vue

@@ -1,5 +1,10 @@
 <script>
 import { useUserStoreWithOut } from '@/store/modules/user'
+// #ifdef APP-PLUS
+// 实现，路由拦截。当应用无访问摄像头/相册权限，引导跳到设置界面 https://ext.dcloud.net.cn/plugin?id=5095
+import interceptorChooseImage from '@/uni_modules/json-interceptor-chooseImage/js_sdk/main.js';
+interceptorChooseImage()
+// #endif
 export default {
   onLaunch: function () {
     const userStore = useUserStoreWithOut()

src/uni_modules/json-interceptor-chooseImage/changelog.md

@@ -0,0 +1,6 @@
+## 1.0.2（2021-05-20）
+修复IOS提示不准确，无摄像头权限提示了无法访问相册
+## 1.0.1（2021-05-20）
+新增文档和示例代码
+## 1.0.0（2021-05-20）
+第一版本发布

src/uni_modules/json-interceptor-chooseImage/js_sdk/main.js

@@ -0,0 +1,70 @@
+export default function(){
+	//当应用无访问摄像头/相册权限，引导跳到设置界面
+	uni.addInterceptor('chooseImage', {
+		fail(e) { // 失败回调拦截 更多拦截器用法 [详情](https://uniapp.dcloud.io/api/interceptor?id=addinterceptor)
+			console.log(e);
+			if (uni.getSystemInfoSync().platform == "android" && e.errMsg == 'chooseImage:fail No Permission') {
+				if (e.code === 11) {
+					uni.showModal({
+						title: "无法访问摄像头",
+						content: "当前无摄像头访问权限，建议前往设置",
+						confirmText: "前往设置",
+						success(e) {
+							if (e.confirm) {
+								gotoAppPermissionSetting()
+							}
+						}
+					});
+				} else {
+					uni.showModal({
+						title: "无法访问相册",
+						content: "当前无系统相册访问权限，建议前往设置",
+						confirmText: "前往设置",
+						success(e) {
+							if (e.confirm) {
+								gotoAppPermissionSetting()
+							}
+						}
+					});
+				}
+			} else if (e.code === 2&&e.errMsg == "chooseImage:fail No filming permission") {
+				console.log('e.errMsg === 2  ios无法拍照权限 ');
+				// 注：e.code === 8 ios无从相册选择图片的权限 api已内置无需自己用拦截器实现
+				uni.showModal({
+					title: "无法访问摄像头",
+					content: "当前无摄像头访问权限，建议前往设置",
+					confirmText: "前往设置",
+					success(e) {
+						if (e.confirm) {
+							gotoAppPermissionSetting()
+						}
+					}
+				});
+			}
+		}
+	})
+	
+	//跳转到**应用**的权限页面 参考来源：https://ext.dcloud.net.cn/plugin?id=594
+	function gotoAppPermissionSetting() {
+		if (uni.getSystemInfoSync().platform == "ios") {
+			var UIApplication = plus.ios.import("UIApplication");
+			var application2 = UIApplication.sharedApplication();
+			var NSURL2 = plus.ios.import("NSURL");
+			var setting2 = NSURL2.URLWithString("app-settings:");
+			application2.openURL(setting2);
+			plus.ios.deleteObject(setting2);
+			plus.ios.deleteObject(NSURL2);
+			plus.ios.deleteObject(application2);
+		} else {
+			var Intent = plus.android.importClass("android.content.Intent");
+			var Settings = plus.android.importClass("android.provider.Settings");
+			var Uri = plus.android.importClass("android.net.Uri");
+			var mainActivity = plus.android.runtimeMainActivity();
+			var intent = new Intent();
+			intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
+			var uri = Uri.fromParts("package", mainActivity.getPackageName(), null);
+			intent.setData(uri);
+			mainActivity.startActivity(intent);
+		}
+	}
+}

src/uni_modules/json-interceptor-chooseImage/package.json

@@ -0,0 +1,76 @@
+{
+  "id": "json-interceptor-chooseImage",
+  "displayName": "拦截器应用示例 — 图片选择",
+  "version": "1.0.2",
+  "description": "当选择图片遇到权限问题时引导用户快捷打开系统设置",
+  "keywords": [
+    "interceptor,拦截器，相册权限"
+],
+  "repository": "",
+  "engines": {
+    "HBuilderX": "^3.1.0"
+  },
+  "dcloudext": {
+    "category": [
+        "JS SDK",
+        "通用 SDK"
+    ],
+    "sale": {
+      "regular": {
+        "price": "0.00"
+      },
+      "sourcecode": {
+        "price": "0.00"
+      }
+    },
+    "contact": {
+      "qq": ""
+    },
+    "declaration": {
+      "ads": "无",
+      "data": "无",
+      "permissions": "无"
+    },
+    "npmurl": ""
+  },
+  "uni_modules": {
+    "dependencies": [],
+    "encrypt": [],
+    "platforms": {
+      "cloud": {
+        "tcb": "y",
+        "aliyun": "y"
+      },
+      "client": {
+        "App": {
+          "app-vue": "y",
+          "app-nvue": "y"
+        },
+        "H5-mobile": {
+          "Safari": "n",
+          "Android Browser": "n",
+          "微信浏览器(Android)": "n",
+          "QQ浏览器(Android)": "n"
+        },
+        "H5-pc": {
+          "Chrome": "n",
+          "IE": "n",
+          "Edge": "n",
+          "Firefox": "n",
+          "Safari": "n"
+        },
+        "小程序": {
+          "微信": "n",
+          "阿里": "n",
+          "百度": "n",
+          "字节跳动": "n",
+          "QQ": "n"
+        },
+        "快应用": {
+          "华为": "n",
+          "联盟": "n"
+        }
+      }
+    }
+  }
+}

src/uni_modules/json-interceptor-chooseImage/readme.md

@@ -0,0 +1,30 @@
+拦截器顾名思义，是在框架方法执行的各个环节（包含：拦截前触发、成功回调拦截、失败回调拦截、完成回调拦截）
+插入逻辑，篡改参数或终止运行。
+#### 优势
+- 这种方式相当于改写了api的内部逻辑，相比语法糖他更加直观，不影响ide的代码提示。
+- 将常规固定的逻辑封装到框架的api内，且支持个性化设计。如你可以在本插件路径:`/uni_modules/json-interceptor-chooseImage/js_sdk/main.js`修改弹出框元素，绘制更漂亮的样式和文字说明。
+
+#### 使用示例，App.vue页代码如下：
+```
+<script>
+// #ifdef APP-PLUS
+import interceptorChooseImage from '@/uni_modules/json-interceptor-chooseImage/js_sdk/main.js';
+// #endif
+	export default {
+		onLaunch: function() {
+			console.log('App Launch')
+			// #ifdef APP-PLUS
+			interceptorChooseImage()
+			// #endif
+		},
+		onShow: function() {
+			console.log('App Show')
+		},
+		onHide: function() {
+			console.log('App Hide')
+		}
+	}
+</script>
+```
+
+> 跳转到**应用**的权限页面 参考来源：[https://ext.dcloud.net.cn/plugin?id=594](https://ext.dcloud.net.cn/plugin?id=594) 感谢作者@DCloud_heavensoft