Android Question [SOLVED] Webviev Alert Messages as Toaster

[arifkibrit]

Hi, I made a website and then i want to use it as a APP so i made all but i couldn't show alert messages as toaster. Could you please help me about it ?

 

[MicroDrie]

Could you please help me about it ?

Yes do a search with the word "toast" and make you choice.

 

[arifkibrit]

Yes do a search with the word "toast" and make you choice.

I made search and try few things, I am asking is there any way to convert alert("") from site to toaster...

 

[MicroDrie]

We all are willing to help you, however everyone expects that you show what you have done so far. Furthermore the IDE will show you the different options and sometimes even a short sub routine.
Of course all beginnings are difficult, but researching and certainly a lot of searching, reading and studying for the found examples of a search will help you to make very nice programs very quickly. Also take a moment to watch the many instructional videos.
And if you still struggle with applying a bit of routine flawlessly, put it between the code tag / at a specific question or do an export as zip file of your entire program.

 

[William Lancee]

To get an alert message from a webpage is quite tricky.
Essentially you have to send that message back to B4X which will then display the message on top of the webpage.
So you need a java bridge back to B4X. In B4A you need to use WebViewExtras, and this:

'Private wvx As WebViewExtras
'Public wv As WebView
'
wvx.addJavascriptInterface(wv, "b4x")

'In Webpage HTML use this script to overide alert();

function alert(s){b4x.CallSub('scriptAlert', true, s);}

'In B4X
'This gets fired when function alert(s){b4x.CallSub('scriptAlert', true, s);} is executed in script
Private Sub scriptAlert(s As String)    'ignore
    xui.MsgboxAsync(s, "Alert")
End Sub

It is also possible in B4J, but more complicated.

 

[William Lancee]

To inject the overriding alert function into an existing HTML in B4A:

    Dim js As String = "function alert(s){b4x.CallSub('scriptAlert', true, s);}"
    Dim xjs As String = "javascript: " & js
    wvx.executeJavascript(wv, xjs)

 

[MicroDrie]

It is also possible in B4J, but more complicated.

Interact with HTML elements from B4j app

 

[arifkibrit]

Thank you so much this worked for me

To get an alert message from a webpage is quite tricky.
Essentially you have to send that message back to B4X which will then display the message on top of the webpage.
So you need a java bridge back to B4X. In B4A you need to use WebViewExtras, and this:

'Private wvx As WebViewExtras
'Public wv As WebView
'
wvx.addJavascriptInterface(wv, "b4x")

'In Webpage HTML use this script to overide alert();

function alert(s){b4x.CallSub('scriptAlert', true, s);}

'In B4X
'This gets fired when function alert(s){b4x.CallSub('scriptAlert', true, s);} is executed in script
Private Sub scriptAlert(s As String)    'ignore
    xui.MsgboxAsync(s, "Alert")
End Sub

It is also possible in B4J, but more complicated.