Android Question How can i make hyperlink to download iam using webview

[Makumbi]

Please help when i click on the hyperlink of downloading the file nothing happens please help

#Region  Activity Attributes
    #FullScreen: False
    #IncludeTitle: True
#End Region

Sub Process_Globals
    Private cc As ContentChooser
    Dim cursor1 As Cursor
   
End Sub

Sub Globals
    Private WebView1 As WebView
    Dim rr As Reflector
    Dim Dialog As JavaObject

End Sub

Sub Activity_Create(FirstTime As Boolean)
    'Do not forget to load the layout file created with the visual designer. For example:
    Dim hold As String
    Dim rst As ResumableSub = checkuser(hold)
    Wait For(rst) Complete (Result As String)
    Log("result: " & Result)
    Log(hold)
    hold=Result
    Log("after sum")
    If hold=Null Then
        'MsgboxAsync("Please  close App Connect Again" ,"SMIS")
       
        Return
    End If
   
    If hold="Active" Or hold="Expired" Then
    Activity.LoadLayout("Sendlesson")
    Activity.Title="Digital Lesson Send"
    Dim client As JavaObject
    client.InitializeNewInstance(Application.PackageName & ".sendlessondata$MyChromeClient", Null)
    Dim jo As JavaObject = WebView1
    jo.RunMethod("setWebChromeClient", Array(client))
    'WebView1.LoadUrl("http://www.kccug.com/KabojjaApp/LessonsDispalys.aspx")
    ProgressDialogShow2("Loading Lessons Please Wait...",False)
    Sleep(150)
   
    CreateWV
    ProgressDialogHide
    End If
End Sub
Sub WebView1_OverrideUrl(Url As String) As Boolean
    WebView1.LoadUrl(Url)
    Return True  'Return True to make webview1 ignore the link
End Sub
Sub CreateWV
    'WebView1.Initialize("myw")
    'Activity.AddView(WebView1,0,0,1024,560)
    rr.Target = WebView1
    rr.Target = rr.RunMethod("getSettings")
    rr.RunMethod2("setPluginsEnabled", True, "java.lang.boolean")
    WebView1.JavaScriptEnabled = True
    WebView1.ZoomEnabled = True
    WebView1.Visible = True
    WebView1.LoadURL("http://www.kccug.com/KabojjaApp/Sendnotes.aspx")
End Sub
Sub ShowFile_Chooser (FilePathCallback As Object, FileChooserParams As Object)
    cc.Initialize("CC")
    cc.Show("*/*", "Choose File")
    Wait For CC_Result (Success As Boolean, Dir As String, FileName As String)
    Dim jo As JavaObject = Me
    If Success Then
        Log(FileName)
        File.Copy(Dir, FileName, Starter.Provider.SharedFolder, "TempFile")
        jo.RunMethod("SendResult", Array(Starter.Provider.GetFileUri("TempFile"), FilePathCallback))
    Else
        jo.RunMethod("SendResult", Array(Null, FilePathCallback))
    End If
End Sub

#if Java
import android.webkit.*;
import android.webkit.WebChromeClient.*;
import android.net.*;
public static void SendResult(Uri uri, ValueCallback<Uri[]> filePathCallback) {
    if (uri != null)
        filePathCallback.onReceiveValue(new Uri[] {uri});
    else
        filePathCallback.onReceiveValue(null);
       
}
public static class MyChromeClient extends WebChromeClient {
@Override
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback,
            FileChooserParams fileChooserParams) {
        processBA.raiseEventFromUI(this, "showfile_chooser", filePathCallback, fileChooserParams);
        return true;
    }
    }
#End If

Sub Activity_Resume

End Sub