B4J Question B4J Enable WebView to Download a file example

[Fabio Fabozzi]

Hi,

I would like to see how and if is possible to download a file from a webview.

Thanks

 

[billzhan]

Do you mean the webview embedded in a java(ui) progromme or a non-ui b4j server?

 

[Fabio Fabozzi]

I try to explain. In a web app, I have a button "download". So this button has a server side script that sends out to browser the file. Normally, if you push this button with the default browser, the action is the physical download of a file. I thought, if webview is based on default android's webbrowser, I think is possible to obtain the same effect. Could it be?

 

[billzhan]

I guess you are trying to use android webview to download a file from a url, this should be a b4a question.

See https://www.b4x.com/android/forum/threads/webview-cant-download-file.38708/#content

Sub WebView1_OverrideUrl (Url As String) As Boolean
    If Url.EndsWith(".pdf")
        downloadfile(Url)  'function to download file
        Return True  'Don't try to navigate to this URL
       
    End If 
   Return False
End Sub

 

[Fabio Fabozzi]

First of all thank you. I just tried this way, both on B4A and B4J, but unfortunately doesn't match my case

 

[billzhan]

It should work. You can upload a demo and see what we can do