self study 权限 permission

demo 测试成功,

 

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import 'package:permission/permission.dart';

  Future requirePermission()async {
    await Permission.requestPermissions([PermissionName.Storage]);
  return 'my_db.db';
  }

  Future getPath(String dbName)async{
    fileDirectory = (await getExternalStorageDirectory()).path;
  }

  Future getDataBase(String dbName) async {
    await requirePermission().then((x)=>getPath(x));
     ....
    ....

　　

 

import 'package:permission/permission.dart';

# Android
List<Permissions> permissions = await Permission.getPermissionStatus([PermissionName.Calendar, PermissionName.Camera]);

List<PermissionName> permissionNames = await Permission.requestPermissions([PermissionName.Calendar, PermissionName.Camera]);

# iOS
PermissionStatus permissionStatus = await Permission.getSinglePermissionStatus(PermissionName.Calendar);

PermissionStatus permissionStatus = await Permission.requestSinglePermission(PermissionName.Calendar);

# Both
Permission.openSettings;

　　

app - src - debug/main/profile / AndroidManifest.xml

 

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="cn.qwert.flutter_study">

    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.MODE_WORLD_READABLE"/>
    <uses-permission android:name="android.permission.MODE_WORLD_WRITEABLE"/>
    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
.....
.....
.....
.....

　　

 

 

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