What is the difference between regular and dangerous permissions in Android?

In Android, permissions are divided into two categories: normal and dangerous.

• Normal permissions are granted automatically during app installation without requiring explicit user consent. They do not pose a significant risk to privacy or the functioning of other apps. Examples: internet access, network state access, vibration.

• Dangerous permissions can threaten user privacy or the normal operation of the device. They must be explicitly approved by the user during app execution. Examples: access to contacts, location, camera.

Differences:

Characteristic	Normal permissions	Dangerous permissions
Granting	Automatically at installation	Requested during runtime
User consent	Not required	Explicit confirmation needed
Risk level	Low	High
Privacy impact	Minimal	High
API level	Mainly available from API 23+	Require handling on Android 6.0+

When working with dangerous permissions in Flutter, the permission_handler package is used to request and check permission status.

  import 'package:permission_handler/permission_handler.dart';

  // Check camera permission status
  Future<void> checkCameraPermission() async {
    var status = await Permission.camera.status;
    if (status.isGranted) {
      // Permission granted
    } else if (status.isDenied) {
      // Permission denied
      // Can request again
      await requestCameraPermission();
    } else if (status.isPermanentlyDenied) {
      // Permission permanently denied, need to direct user to settings
      openAppSettings();
    }
  }

  // Request camera permission
  Future<void> requestCameraPermission() async {
    var status = await Permission.camera.request();
    if (status.isGranted) {
      // Permission granted
    } else {
      // Permission denied
    }
  }