iOS Question [Solved] 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

 

[Duque]

I'm stuck on the same issue, I want to press a button in the web view and get the result in b4i.
According to the example, I have to run this in b4i, the clicks in the web view will not work?

I see that you have solved it, can you leave an example please.

 

[arifkibrit]

you should write a JS code in your webpage like
window.location.href = window.location + "&shareit";
and handle in B4i like
Private Sub WebView1_OverrideUrl (Url As String)

maybe have any other solution but i handle that way