Fix QR scanner not detecting barcodes on iOS#156
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IsDetecting="True" in XAML starts detection during InitializeComponent, before Options is set in the constructor. On iOS the native decoder snapshots options at start time and never picks up later changes, so FrameReady fires but BarcodesDetected never does. Set IsDetecting="False" in XAML so detection only starts in OnAppearing (after Options is already configured and permissions are granted). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Bug
On iOS the QR scanner camera opens but never detects anything — it just stays open with a live preview.
Root Cause
IsDetecting="True"in XAML starts barcode detection duringInitializeComponent(), beforeOptionsis set in the constructor. On iOS, ZXing.Net.MAUI's native decoder snapshots the options when detection starts and doesn't pick up later changes. SoFrameReadyfires (camera works) butBarcodesDetectednever does (decoder running with default/empty options).Fix
Set
IsDetecting="False"in XAML. Detection now only starts inOnAppearing()— afterOptionsis configured in the constructor and camera permissions are granted. This was the original intent of the 500ms delay +IsDetecting = trueinOnAppearing, but the XAML attribute was pre-empting it.