camera_error flutter auth_error ai_generated true

PlatformException(camera_error, Camera access denied, null, null)

ID: flutter/platform-exception-camera-permission

Also available as: JSON · Markdown · 中文
90%Fix Rate
85%Confidence
1Evidence
2024-02-10First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
flutter 3.10 active — — —
flutter 3.22 active — — —
camera 0.10.5 active — — —
permission_handler 11.0.0 active — — —

Root Cause

The app attempted to access the camera on iOS or Android without the required runtime permission being granted by the user.

generic

中文

应用尝试在 iOS 或 Android 上访问相机，但用户未授予所需的运行时权限。

Official Documentation

https://pub.dev/packages/camera

Workarounds

  1. 92% success Use the permission_handler package to request camera permission before initializing the camera. Implement a permission check flow that shows a rationale dialog if permission is permanently denied. 
    Use the permission_handler package to request camera permission before initializing the camera. Implement a permission check flow that shows a rationale dialog if permission is permanently denied.
  2. 85% success Wrap camera initialization in a try-catch block and handle the PlatformException gracefully, showing an error message to the user. 
    Wrap camera initialization in a try-catch block and handle the PlatformException gracefully, showing an error message to the user.

中文步骤

  1. 使用 permission_handler 包在初始化相机之前请求相机权限。实现权限检查流程，如果权限被永久拒绝，则显示理由对话框。
  2. 将相机初始化包装在 try-catch 块中，优雅地处理 PlatformException，并向用户显示错误消息。

Dead Ends

Common approaches that don't work:

  1. Adding only the Android permission in AndroidManifest.xml without requesting runtime permission 95% fail

    On Android 6.0+ and iOS 10+, runtime permission prompt is required; manifest declaration alone is insufficient.

  2. Calling camera plugin directly without checking permission status first 80% fail

    The plugin throws the exception immediately if permission is denied; no fallback handling is provided.