self study 权限 permission

demo 测试成功,

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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