.NET MAUI App Lifecycle

Critical Behavioral Gotchas

⚠️ Resumed ≠ first launch

Resumed only fires when returning from the Stopped state. On first launch the sequence is Created → Activated — Resumed is never called.

// ❌ Putting initialization logic in OnResumed — won't run on first launch
protected override void OnResumed()
{
    LoadUserProfile();  // Skipped on cold start!
}

// ✅ Use OnActivated for logic that must run on every foreground entry
protected override void OnActivated()
{
    LoadUserProfile();  // Runs on both first launch and resume