Android Question Problem with bluetooth

[Arturs]

Hi

I have the following code:

Sub Activity_Create(FirstTime As Boolean)
    'Do not forget to load the layout file created with the visual designer. For example:
    Activity.LoadLayout("1")
  
        If FirstTime = True Then
                      
        admin.Initialize("admin")
        serial1.Initialize("Serial1")
        search_devices  

              
       End If
      
End Sub

Sub Activity_Resume

  
    If admin.IsEnabled = False Then
    If admin.Enable = False Then
      
        ToastMessageShow(" BT ERROR,True)
      
        Else
          
        ToastMessageShow(" BT ON",True)
        connect_device
                      
            End If  
    Else  
End If

End Sub

Sub search_devices
  
    foundDEvices.Initialize
If admin.StartDiscovery = False Then
  
    ToastMessageShow("ERRROR",True)
  
    Else
        ProgressDialogShow("SEARCHING.")
      
      
End If  
  
End Sub

Sub connect_device
  
    Dim pairedDevice As Map
    pairedDevice = serial1.GetPairedDevices
    Dim IL As List
    IL.Initialize
  
    For i=0 To pairedDevice.Size-1
        IL.Add(pairedDevice.GetKeyAt( i ))
      
  
    Next
    Dim res As Int
    res = InputList(IL," BT devices :",-1)
    If res <> DialogResponse.CANCEL Then
        serial1.Connect(pairedDevice.Get (IL.Get ( res)))
              
            End If
          
  
End Sub

I would like to have below steps in my application:

- after first starting application all available devices should be searched,
- next one of them should be chosen by user and connection should be established

- after resuming the application from pause/sleep mode the connection should be established with the last choose device (In pause/sleep mode the connection will be disconnected)

Currently before finishing searching devices the list is showed ( the application does not wait for discoveryfinished I need something like while) and I do not know how to resume the connection.


Regards
Artur

 

[Erel]

Don't call GetPairedDevices. Instead build the list of nearby devices and then let the user choose a device.

 

[Arturs]

Could you write me more explanation ? I am new in B4A and I do not know exactly what you mean.
Does it cause that aplication will wait until finished discovery ?

 

[Erel]

I recommend you to start with the beginner's guide. Once you understand the main concepts you should go over this tutorial:
https://www.b4x.com/android/forum/threads/14768/#content

Beginner's guide: https://www.b4x.com/android/documentation.html

 

[Arturs]

Solved. Thank you for support