The font looks like smaller in WKWebView than in UIWebView
Finally I solved this problem by adding an html string:
- For Objective-C:
NSString *headerString = @"<head><meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no'></head>";
[self.webView loadHTMLString:[headerString stringByAppendingString:yourHTMLString] baseURL:nil];
- For Swift:
let headerString = "<head><meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no'></head>"
webView.loadHTMLString(headerString + yourHTMLString, baseURL: nil)
What's more,if you want to load url rather than html you can try:
private var isInjected: Bool = false
webView.navigationDelegate = self
// MARK: - WKNavigationDelegate
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
if isInjected == true {
return
}
self.isInjected = true
// get HTML text
let js = "document.body.outerHTML"
webView.evaluateJavaScript(js) { (html, error) in
let headerString = "<head><meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no'></head>"
webView.loadHTMLString(headerString + (html as! String), baseURL: nil)
}
}
let description = "<p> HTML content <p>"
var headerString = "<header><meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0'></header>"
headerString.append(description)
self.webView.loadHTMLString("\(headerString)", baseURL: nil)
From iOS 14 onward you can achieve this with pageZoom property. For example
webView.pageZoom = 2.0;
will make page content twice as large.
Here's the link for documentation:
https://developer.apple.com/documentation/webkit/wkwebview/3516411-pagezoom
Simple way to do this in Swift
extension WKWebView {
/// load HTML String same font like the UIWebview
///
//// - Parameters:
/// - content: HTML content which we need to load in the webview.
/// - baseURL: Content base url. It is optional.
func loadHTMLStringWithMagic(content:String,baseURL:URL?){
let headerString = "<header><meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no'></header>"
loadHTMLString(headerString + content, baseURL: baseURL)
}
}
Just simply call this method and magic happen. ;)
webView.loadHTMLStringWithMagic(content: "<p> HTML content <p>", baseURL: nil)
OUTPUT:
