Android Question webview page modify on-the-go

peacemaker

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HI, All

Who knows WEB well - suggest, please, how to replace some text in the page that opened in a webview ?
I guees, by Javascript maybe possible something...
 
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peacemaker

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All my test with replacing whole the HTML by JS injection - no success. Yes, i can get the web-page text, but after modification i can only make WebView.LoadHTML for sure.
And links do not work, as it's now local page is opened.
Task is read any web-page with partially edited text, translated into another language.

B4X: 
WebViewExtras1.executeJavascript(WebView1, "document.body.parentElement.innerHTML = " & QUOTE & Html & QUOTE)

A new HTML replaces the whole the page, yes, but edited HTML got from the sourced page is not assigned, not got by WebView.
 
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peacemaker

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SOLVED:

B4X: 
Sub WebView1_PageFinished (Url As String)
        Dim Javascript As String = $"document.body.innerHTML = document.body.innerHTML.replace(/text_to_search/gi, "text_to_replace");"$
        WebViewExtras1.executeJavascript(WebView1, Javascript)
End Sub
 
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peacemaker

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Next question here - how to understand that Javascript has finished its work - search-and-replace task can be very long...
 
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