Generate HTML and PDF documents by using template html files and filling them with your data.
This library allows you to generate HTML and PDF using HTML template files. Try out our example project!
- IOS 10 +
You can install SwiftHtmlPdf using Cocoa Pods.
Add SwiftHtmlPdf into your project's Podfile:
target 'MyApp' do
pod 'SwiftHtmlPdf', '~> 1.0'
endThen run the following command:
$ pod install<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta content="text/html; charset=utf-8" http-equiv="content-type">
...
</style>
</head>
<body>
<h1>PDF Example</h1>
<ul>
<item name="MyListItem"/>
</ul>
</body>
</html>
<region name="MyListItem">
<li>
<field name="Name"/>
</li>
</region>Note the following HTML tags
<item name="MyListItem"/>- This is a reference to the MyListItem region.
<region name="MyListItem">...</region>- This is a blueprint for an instance of MyListItem
<field name="Name"/>- This is a field that will be replaced by a variable
First create your model and implement PDFComposerDelegate
import SwiftHtmlPdf
...
class MyListItem: PDFComposerDelegate {
var name: String
init(_ name: String) {
self.name = name
}
func valueForParameter(parameter: String, index: Int) -> String {
switch parameter {
case "Name":
return name
default:
print("Unhandled PDF Key \(parameter) in MyListItem")
return parameter
}
}
func itemsForParameter(parameter: String, index: Int) -> [PDFComposerDelegate] {
return []
}
}Now implement the delegate in your root object. In this case, the root object is the ViewController.
extension ViewController: PDFComposerDelegate {
var myListItems = [MyListItem("Hello"), MyListItem("World")]
func valueForParameter(parameter: String, index: Int) -> String {
return ""
}
func itemsForParameter(parameter: String, index: Int) -> [PDFComposerDelegate] {
return myListItems
}
Note the following delegate functions:
valueForParameter(parameter: String, index: Int)- This function is called for every
<field name="{parameter}"/>in your template
- This function is called for every
func itemsForParameter(parameter: String, index: Int) -> [PDFComposerDelegate]- The function is called for every
<item name="{parameter}"/>in the current region of the template - Return an array of child objects that will handle the region.
- For every returned object, a new region will be instantiated:
<region name="{parameter}">...</region>
- The function is called for every
func showPdfPreview() {
let preview = PDFPreviewController.instantiate()
do {
let resourceName = "planbuildpro-baukosten-template"
let delegate = self
try preview.loadPreviewFromHtmlTemplateResource(templateResource: resourceName, delegate: delegate)
present(preview, animated: true, completion: nil)
} catch {
print("Could not open pdf preview")
}
}- resourceName is the file name of the template html. Do not include the suffix (.html)
- delegate is the View Controller (the root object)
To parse the html template without the preview dialog, you can the following function:
let htmlContent = PDFComposer.renderHtmlFromResource(templateResource: templateResource, delegate: delegate)This function works similar to the preview dialog but returns parsed html.
Next up you can transform the html content into a PDF:
let pdfData = PDFComposer.exportHTMLContentToPDF(HTMLContent: htmlContent)Alternatively you can use the following function to create a pdf file:
let pdfData = PDFComposer.exportHTMLContentToPDFFile(HTMLContent: htmlContent, path: path)Now you can share the pdf using a UIActivityViewController:
let activityVC = UIActivityViewController(activityItems: [pdfData], applicationActivities: nil)
self.present(activityVC, animated: true, completion: nil)
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