Overview
DocScanner is an extension for AppInventor that brings advanced document scanning capabilities to your Android applications. With DocScanner, you can easily integrate a document scanner feature with powerful AI functionalities. This documentation provides an in-depth guide on using the DocScanner extension, including its features, methods, properties, and events.
Features
- High-quality User Interface: Provides a consistent and user-friendly interface for digitizing physical documents.
- Automatic Capture: Automatically detects documents for quick and efficient scanning.
- Accurate Edge Detection: Ensures optimal cropping results by accurately detecting document edges.
- Automatic Rotation Detection: Automatically adjusts document orientation for proper viewing.
- Editing Functionalities: Offers various editing tools such as cropping, applying filters, removing shadows, and cleaning stains.
- On-Device Processing: All processing is performed locally on the device, preserving user privacy.
- No Camera Permission Required: Your app does not need camera permissions to utilize DocScanner.
| Original picture | Scanned document with perspective corrected, wrinkle removed and grayscale filter applied |
|---|---|
Blocks
Methods
1. Scan
- Description: Opens the Document Scanner interface.
- Parameters: None
2. Share
- Description: Share the provided file.
-
Parameters:
- file (text): The the path of file to share.
3. ClearCache
- Description: Clears cache of scanned images.
- Parameters: None
Properties
1. GalleryImportAllowed
- Description: Returns whether the user can select images from the gallery during scanning.
- Type: Boolean (Read-Write)
2. PageLimit
- Description: Sets the maximum number of pages in the scanned document.
- Type: Number (Read-Write)
3. ResultFormat
- Description: Sets the result format of the Document Scanner (JPEG, PDF, or Both).
- Type: Text (Read-Write)
4. ScannerMode
- Description: Sets the mode used by the scanner (Basic, Basic with Filter, Full).
- Type: Text (Read-Write)
Events
1. ScanningError
- Description: Triggered when an error occurs during scanning.
-
Parameters:
-
errorMessage(Text): The error message. -
logs(Text): Additional logs for debugging.
-
2. ScanningResult
- Description: Triggered when document scanning is successful.
-
Parameters:
-
pageCount(Number): Number of scanned pages. -
pages(List): List of scanned pages. -
pdfUri(Text): URI of the generated PDF file.
-
3. ScanningCancelled
- Description: Triggered when the user cancels the scanning process.
Example Usage
Here’s an example of how you can use the DocScanner extension in your project:
Changelogs
v.1.1 🆕
-
Removed LoadImageFromUri Function
-
Two new blocks Share and ClearCache Added
Pricing
Extension is now discontinued. Not sold anymore.
Website
Special thanks to @UnknownBeast