Substitute the HTML String

Currently I am involved in a project that utilizes a webView in Swift 4. The project retrieves an HTML string from a web-service, which includes text and images. My goal is to modify the font size of the text, change the background color, and adjust the image sizes within the entire HTML string. For example, if the font size appears 10 times, I want to apply the font change uniformly across all instances. I will provide both the HTML string and its output for reference.

<p class=\"MsoNormal\" style='margin-bottom:0in;margin-bottom:.0001pt'> </p><div align=\"center\"><table class=\"MsoTableGrid\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" style='border-collapse:collapse;border:none'>  <tr style='height:12.5pt'>   <td width=\"216\" valign=\"top\" style='width:2.25in;border:solid #4BACC6 1.0pt;   background:#DAEEF3;padding:0in 5...
htmlcssuiwebview

Answer №1

Finally found the solution without needing to adjust font size or image size. Simply insert the following HTML code and input your own HTML in between. When loaded into the webview, your font size will display normally and images will also be displayed correctly. Check out the image I implemented in my app.

let fetchedData = "your HTML string retrieved from web API"

"<html><head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"><style type=\"text/css\">span{top:0 !important;}img{max-width: 100%; width:auto; height: auto; zoom: \(aZoom); vertical-align:middle !important}body{color: #000}iframe{ min-width: 100%; width: 100px; *width: 100%;}</iframe></style></head><body>\(fetchedData)</body></html>"

Answer №2

If you want to customize the spacing in your HTML file, simply adjust the top margin values from 15.0pt to 4.0pt and from 6.0pt to 2.0pt. You can also change the background color to any preferred option.

Additionally, if you wish to modify the image dimensions, just specify the height and width within the img tag.

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