first commit

moehu/moehu_fontend/lib/utils/AuthorityApplication.dart

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+import 'package:flutter/material.dart';
+import 'package:permission_handler/permission_handler.dart';
+import 'package:peach/config/_.dart';
+
+/*
+ * 动态申请App的权限
+ */
+class AuthorityApplication {
+  /// App需要动态申请的权限
+  static List<Permission> permissionList = [
+    Permission.storage,
+    Permission.photos
+  ];
+
+  static Future<bool> init(BuildContext context) async {
+    if (Config.isAndroid) {
+      Map<Permission, PermissionStatus> status = await permissionList.request();
+      if (status[Permission.storage].isGranted) {
+        print("用户同意了权限");
+        return true;
+      } else if (status[Permission.storage].isDenied) {
+        print("用户拒绝了权限");
+        AuthorityApplication.ShowTips(
+          context: context,
+          content: "请允许App获取权限，否则App功能不能正常使用！",
+          isShowcancel: false,
+          confirmCall: () async {
+            AuthorityApplication.init(context);
+          },
+        );
+        return false;
+      } else if (status[Permission.storage].isPermanentlyDenied) {
+        print("用户永久拒绝了权限");
+        AuthorityApplication.ShowTips(
+          context: context,
+          content: "您禁用了应用的必要权限，请到设置里开启！",
+          isShowcancel: false,
+          confirmText: '打开设置',
+          confirmCall: () async {
+            await openAppSettings();
+          },
+        );
+        return false;
+      }
+    }
+  }
+
+  static Future ShowTips(
+      {BuildContext context,
+      String content,
+      bool isShowcancel: true,
+      Function confirmCall,
+      confirmText = "重新请求",
+      title = '提示'}) async {
+    await showDialog(
+        context: context,
+        barrierDismissible: false,
+        builder: (context) => WillPopScope(
+              onWillPop: () async => false,
+              child: AlertDialog(
+                title: Text(title),
+                content: Text(content),
+                actions: <Widget>[
+                  isShowcancel
+                      ? FlatButton(
+                          child: Text(
+                            '取消',
+                            style: TextStyle(color: ColorConfig.NoActiveColor),
+                          ),
+                          onPressed: () {
+                            Navigator.of(context).pop();
+                          })
+                      : Text(''),
+                  FlatButton(
+                      child: Text(
+                        confirmText,
+                        style: TextStyle(color: ColorConfig.ThemeColor),
+                      ),
+                      onPressed: () async {
+                        confirmCall();
+                        Navigator.of(context).pop();
+                      }),
+                ],
+              ),
+            ));
+  }
+}