I currently have a project for IOS 9 where I have a UIWebView component, I'm retrieving a webpage and submitting within this component.
But my goal is to get only the first form that is presented inside the HTML, that is, I want to return only the HTML of the first form and present it in UIWebView formatted as a web page. Any ideas how to do this?
Hello.
You can use the hpple framework for this. The framework is built on Objective-C, but you can use it in Swift. I made a simple example, which loads an HTML page with two forms (distributed along with the app), parse the HTML and show only the first form.
This is the HTML page:
<!DOCTYPE HTML>
<html>
<head>
<title>Test page with 2 forms</title>
</head>
<body>
<h1>Form 1</h1>
<form id="form1" action="your_action_here">
<input type="text" value="You name here">
<input type="submit">
</form>
<h1>Form 2</h1>
<form id="form2">
<input type="text" value="You name here">
<input type="submit">
</form>
</body>
</html>
I made a simple ViewController, which finds and loads the first HTML form in the viewDidLoad method.
import UIKit
import hpple
class ViewController: UIViewController {
@IBOutlet weak var webView: UIWebView!
override func viewDidLoad() {
super.viewDidLoad()
if let htmlFile = NSBundle.mainBundle().pathForResource("index", ofType: "html", inDirectory: "www") {
let htmlData = NSData(contentsOfFile: htmlFile)
let htmlDocument = TFHpple(HTMLData: htmlData)
if let htmlElements = htmlDocument.searchWithXPathQuery("//form[@id='form1']") as? [TFHppleElement] {
if let firstForm = htmlElements.first?.raw {
webView.loadHTMLString(firstForm, baseURL: nil)
}
}
} else {
print("File not found")
}
}
}
You can see the full source code in this repository in GitHub . I used CocoaPods to add hpple dependency. If you want more information about CocoaPods, you can view this tutorial .