Something like:
WebViewExtras1.executeJavascript(browser, Javascript)
WebViewExtras1.executeJavascript(browser, Javascript)
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Wish Javascript
- Thread starter GiulioVale
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Nativeobject could call executestringByEvaluatingJavaScriptFromString on webview, isn't 't?
https://developer.apple.com/library...ebView/stringByEvaluatingJavaScriptFromString:
https://developer.apple.com/library...ebView/stringByEvaluatingJavaScriptFromString:
Not sure is the same
Thanks Erel; I attached a simple example
Most searched info return that stringByEvaluatingJavaScriptFromString: must called in webViewDidFinishLoad, so it's called in WebView_PageFinished
Most searched info return that stringByEvaluatingJavaScriptFromString: must called in webViewDidFinishLoad, so it's called in WebView_PageFinished
B4X:
Sub Process_Globals
'These global variables will be declared once when the application starts.
'Public variables can be accessed from all modules.
Public App As Application
Public NavControl As NavigationController
Private Page1 As Page
Private toolbar1 As Page
Private WebView1 As WebView
End Sub
Private Sub Application_Start (Nav As NavigationController)
NavControl = Nav
Page1.Initialize("Page1")
Page1.Title = "Page 1"
Page1.RootPanel.LoadLayout("provawebview")
NavControl.ShowPage(Page1)
NavControl.ToolBarVisible=True
Dim htmlpage As String
htmlpage="<!DOCTYPE html>"
htmlpage=htmlpage&"<html>"
htmlpage=htmlpage&"<body>"
htmlpage=htmlpage&"<script>function myFunction() {document.getElementById('demo').innerHTML = 'Paragraph changed';}</script>"
htmlpage=htmlpage&"<h1>My First Web Page</h1>"
htmlpage=htmlpage&"<p id='demo'>A Paragraph.</p>"
htmlpage=htmlpage&"<Button Type='Button' onclick='myFunction()'>Try it</Button>"
htmlpage=htmlpage&"</body>"
htmlpage=htmlpage&"</html>"
Log (htmlpage)
WebView1.LoadHtml(htmlpage)
End Sub
Sub WebView1_PageFinished (Success As Boolean, Url As String)
Log ("Page Loaded")
Dim ww As NativeObject=Webview1
Dim scripttext As String
scripttext="myfunction();"
Log (scripttext)
ww.RunMethod("stringByEvaluatingJavaScriptFromString:",Array(scripttext))
End SubThanks
Uhm sorry again but with
can call ProcessHTML inside b4A.
For B4i the same code is ?
B4X:
Dim Javascript As String
Javascript="B4A.CallSub('ProcessHTML', true, tit('title') )"
Log("PageFinished: "&Javascript)
WebViewExtras1.executeJavascript(browser, Javascript)can call ProcessHTML inside b4A.
For B4i the same code is ?
No Erel I want back the result of this javascript function:
B4X:
function tit( classe_titoli ){
var elements = document.getElementsByClassName( classe_titoli );
var t="";
for(var i = 0, length = elements.length; i < length; i++) {
t = t + elements[i].innerText + "|";
}
return t;
}Yes Erel.
Every page have this function inside (with B4A I can call it and have back the index of a document based on some css class).
A different solution is to have back all the innerHTML and parse this but i prefer first solution.
Every page have this function inside (with B4A I can call it and have back the index of a document based on some css class).
A different solution is to have back all the innerHTML and parse this but i prefer first solution.
Wonderfull Erel:
<B4INativeObject: Generalità|L'impianto|>
<B4INativeObject: Generalità|L'impianto|>
Try
Dim html AsString = ww.RunMethod("stringByEvaluatingJavaScriptFromString:",Array("document.documentElement.innerText"))
thank you very much it worked like this
but i got an error when i try to load this site to my webview
WebView1.LoadUrl("http://query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.xchange where pair in (" & """" & "USDILS" & """" & ")&env=store://datatables.org/alltableswithkeys")
error:
why i cannot load this page??
but i got an error when i try to load this site to my webview
WebView1.LoadUrl("http://query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.xchange where pair in (" & """" & "USDILS" & """" & ")&env=store://datatables.org/alltableswithkeys")
error:
why i cannot load this page??
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