iOS Question b4i CallSub

[arifkibrit]

Hi, i try to search but couldn't find sorry if repost

i am using this code in B4A and it works for me but what i did and changed i couldn't trigger Subs

WebView1.ExecuteJavascript("document.getElementById('ELEMENT_ID').addEventListener('click', event => {B4A.CallSub('BuyMe',true,document.getElementById('ELEMENT_ID').target)})")

i tried so many things pls help me...

 

[Erel]

You cannot directly raise an event from WebView to your code.

You can change the page location and catch it with the OverrideUrl event.
And cross platform code to execute JS: https://www.b4x.com/android/forum/threads/b4x-webview-ckeditor-rich-text-editor.133260/#content

 

[arifkibrit]

Thanks Erel but i am very new on IOS part could you send me a small example or someone else ?

 

[jahswant]

Private Sub RunJavaScript (js As String) As ResumableSub
    #if B4A
    WebViewExtras1.executeJavascript(WebView1, $"B4A.CallSub('Process_HTML', true, ${js})"$)
    Wait For Process_Html(html As String)
    Return html
    #Else If B4J
    Return WebView1.As(JavaObject).RunMethodJO("getEngine", Null).RunMethod("executeScript", Array(js))
    #Else If B4i
    Dim sf As Object = WebView1.EvaluateJavaScript(js)
    Wait For (sf) WebView1_JSComplete (Success As Boolean, Result As String)
    Return Result
    #end if
End Sub