Question 1

How to implement a scratch card in Flutter using Scratcher?

Accepted Answer

Add the dependency in pubspec.yaml, import the package, wrap your content with the Scratcher widget, and customize properties like brushSize and threshold, as detailed in the README setup section.

Question 2

Does Scratcher work on Flutter web without CanvasKit?

Accepted Answer

No, Scratcher only supports Flutter web with the CanvasKit renderer, as explicitly mentioned in the README. For other renderers, consider alternative packages or custom solutions.

Question 3

How to reset the scratch area programmatically in Scratcher?

Accepted Answer

Assign a GlobalKey to the Scratcher widget and call the reset method on its state, optionally with a duration for animations, as demonstrated in the programmatic access example.

Question 4

Scratcher or scratch_card: which is better for Flutter?

Accepted Answer

Scratcher offers more features like image overlays and accuracy settings, while scratch_card is simpler and may be sufficient for basic use. Choose Scratcher for advanced customization but evaluate based on your app's specific needs.

Question 5

Can I use a custom image as the scratch overlay in Scratcher?

Accepted Answer

Yes, use the image property to set a custom Image widget as the overlay, allowing for branded or themed scratch cards, as noted in the features list.

Question 6

How to track scratch progress and trigger actions at a threshold?

Accepted Answer

Set the threshold property to a percentage value and use the onThreshold callback; the onChange callback also provides real-time progress updates, enabling interactive feedback.

Scratcher

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