.NET MAUI Permissions — Gotchas & Best Practices

Critical Anti-Patterns

1. Requesting without checking first

// ❌ Shows prompt even if already granted
var status = await Permissions.RequestAsync<Permissions.Camera>();

// ✅ Check first — avoids unnecessary prompts
var status = await Permissions.CheckStatusAsync<Permissions.Camera>();
if (status != PermissionStatus.Granted)
    status = await Permissions.RequestAsync<Permissions.Camera>();

2. Calling permissions in a constructor

Permission APIs are async and require a UI context. Constructors can't await.