Android Question Android 13+: how several HTTP-requests synchronously ?

Dim results As List
results.Initialize
For Each url In urls
 Download(url, results)
Next
Do While results.Size < urls.Size
 Sleep(500)
Loop
Dim success As Boolean = True
For Each result As Boolean In results
 If result = False Then success = False
Next
Log(success)

Private Sub Download(url As String, results As List)
 'regular download using HttpJob
 results.Add(job.Success)
End Sub