Webview2File Extension Documentation
Overview
The Webview2File extension allows App Inventor developers to easily convert the content of a WebView or WebViews inside a container into PDF files or images. The extension is designed for block programming and offers a straightforward way to manage WebView content as files.
Features
- Convert WebView to PDF: Save the content of a WebView as a PDF file.
- Convert WebView to Image: Save the WebView content as an image in the gallery.
- Convert All WebViews in a Container to PDF: Process multiple WebViews within a container and generate individual PDF files.
- Convert All WebViews in a Container to Images: Save the content of multiple WebViews as images.
- Immediate Gallery Update: Automatically update the gallery when a file is saved.
- Error Handling: Triggers events if errors occur during file generation.
Blocks Overview
Functions
1. ConvertToPDF
Converts the content of a single WebView to a PDF file.
Parameters:
WebViewer: The WebView component to process.fileName: The name of the PDF file.
2. ConvertToImage
Converts the content of a single WebView to an image and saves it in the gallery.
Parameters:
WebViewer: The WebView component to process.dirName: The name of the folder in the gallery where the image will be saved.
3. ConvertContainerToPDF
Converts the content of all WebViews within a container (e.g., HorizontalArrangement or VerticalArrangement) to PDF files.
Parameters:
Container: The container holding WebViews.fileName: The base name for the generated PDF files. Each WebView will be saved as a separate PDF file with an index appended.
4. ConvertContainerToImages
Converts the content of all WebViews within a container to images and saves them in the gallery.
Parameters:
Container: The container holding WebViews.dirName: The folder name in the gallery where the images will be saved.
Events
1. OnImageSaved
Triggered when an image is successfully saved to the gallery.
Parameter:
uri: The URI of the saved image.
2. OnPDFGenerated
Triggered when a PDF file is successfully generated.
Parameter:
message: A message indicating the success of the operation.
3. OnImageGenerated
Triggered when images from a container are successfully generated.
Parameter:
filePath: The path to the saved images.
4. OnError
Triggered when an error occurs during any operation.
Parameter:
message: A description of the error.
Usage Guide
Webview2File
Extension to convert WebView content to PDF and image.
Events:
OnImageSaved
Triggered when the image is successfully saved to the gallery.
| Parameter | Type |
|---|---|
| uri | text |
OnPDFGenerated
Triggered when a PDF is generated.
| Parameter | Type |
|---|---|
| message | text |
OnImageGenerated
Triggered when an image is generated.
| Parameter | Type |
|---|---|
| filePath | text |
OnError
Triggered when an error occurs.
| Parameter | Type |
|---|---|
| message | text |
Methods:
ConvertToPDF
Converts the content of the WebView to a PDF file.
| Parameter | Type |
|---|---|
| webViewer | component |
| fileName | text |
ConvertToImage
Converts the content of the WebView to an image and saves it to the gallery.
| Parameter | Type |
|---|---|
| webViewComponent | component |
| dirName | text |
ConvertContainerToPDF
Converts the content of all WebViews within a container to a PDF file.
| Parameter | Type |
|---|---|
| containerComponent | component |
| fileName | text |
ConvertContainerToImages
Converts the content of all WebViews within a container to images and saves them to the gallery.
| Parameter | Type |
|---|---|
| containerComponent | component |
| dirName | text |
This documentation was generated using Akshat Developer's Documentation Generator.
Notes
- Permissions: The extension requires storage access to save files. Make sure your app includes the necessary permissions.
- File Names: Ensure unique file names to avoid overwriting existing files.
- Gallery Update: Files saved as images are immediately visible in the gallery.
Files
AIX (by Fast Cli Builder): com.bosonshiggs.webview2file.aix (11.5 KB)
AIA: Webview2File.aia (14.0 KB)
Click Here and see the GitHub files!
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