? Permissions Handling in React Native

? Quick Overview

Permissions in React Native control access to sensitive device features like camera, location, microphone, storage, and contacts. Proper permission handling ensures security, user trust, and smooth app functionality across Android and iOS.

? Key Concepts

Runtime permissions are required for sensitive features
Android and iOS permission models differ
Permissions must be requested before accessing APIs
User can grant, deny, or permanently block permissions

? Syntax / Theory

React Native provides the PermissionsAndroid API for Android. On iOS, permissions are handled via native configuration and libraries.

? View Code Example

// Import PermissionsAndroid from react-native
import { PermissionsAndroid } from "react-native";

// Request camera permission at runtime
const requestCameraPermission = async () => {
  const granted = await PermissionsAndroid.request(
    PermissionsAndroid.PERMISSIONS.CAMERA
  );
  return granted === PermissionsAndroid.RESULTS.GRANTED;
};

? Live Output / Explanation

What Happens?

When this function runs, Android shows a system permission dialog. If the user accepts, the function returns true. Otherwise, access to the camera should be blocked.

? Interactive Permission Flow (Diagram)

? Interactive Permission Simulator

Use this simulator to experience how permission states change when users Interact with the system dialog.

? Camera Access Status: Not Requested

? Location Access Status: Not Requested

? Use Cases

Camera access for QR scanning or photos
Location permission for maps and tracking
Microphone access for voice recording
Storage permission for file uploads

✅ Tips & Best Practices

Always explain why permission is needed
Request permissions only when required
Handle denied and blocked states gracefully
Test permissions on real devices

? Try It Yourself

Create a button to request location permission
Show a message based on user response
Disable features if permission is denied