Android Question Bluetooth Button (need tutorial)

Sub Activity_Resume

    If  Activity.GetStartingIntent.Action = "android.intent.action.VOICE_COMMAND" Then
        vr.Listen
    End If

    Log(Activity.GetStartingIntent)
End Sub

Sub Process_Globals
 Private PrevIntent As Intent
End Sub

Sub Activity_Resume
 If Activity.GetStartingIntent <> PrevIntent And Activity.GetStartingIntent.Action = "android.intent.action.VOICE_COMMAND" Then
   ...
 End If
 PrevIntent = Activity.GetStartingIntent
End Sub

#Region  Project Attributes
    #ApplicationLabel: B4A Example
    #VersionCode: 1
    #VersionName:
    'SupportedOrientations possible values: unspecified, landscape or portrait.
    #SupportedOrientations: unspecified
    #CanInstallToExternalStorage: False
#End Region

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

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.

End Sub

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    'These variables can only be accessed from this module.
    Private PrevIntent As Intent
    Private vr As VoiceRecognition
End Sub

Sub Activity_Create(FirstTime As Boolean)
    'Do not forget to load the layout file created with the visual designer. For example:
    Activity.LoadLayout("1")
vr.Initialize("vr")

End Sub

Sub Activity_Resume 
    Dim wIn As Intent
    wIn = Activity.GetStartingIntent 
    If wIn.Action = "android.intent.action.ASSIST" Or wIn.Action = "android.intent.action.VOICE_COMMAND" Then     
    vr.Listen
    End If
PrevIntent = Activity.GetStartingIntent

End Sub

Sub Activity_Pause (UserClosed As Boolean)
    StopBluetoothSco
End Sub

Sub StopBluetoothSco() 
    Dim r As Reflector
    ToastMessageShow("Stop sco", False)
 
    r.Target = r.GetContext
    r.Target = r.RunMethod2("getSystemService", "audio", "java.lang.String")
    r.RunMethod("stopBluetoothSco")
End Sub

Sub StartBluetoothSco()
    Dim r As Reflector
    ToastMessageShow("Start sco", False)
 
    r.Target = r.GetContext
    r.Target = r.RunMethod2("getSystemService", "audio", "java.lang.String")
    r.RunMethod("startBluetoothSco")
End Sub

#Region  Project Attributes
    #ApplicationLabel: B4A Example
    #VersionCode: 1
    #VersionName:
    'SupportedOrientations possible values: unspecified, landscape or portrait.
    #SupportedOrientations: unspecified
    #CanInstallToExternalStorage: False
#End Region

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

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.

End Sub

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    'These variables can only be accessed from this module.

End Sub

Sub Activity_Create(FirstTime As Boolean)
    'Do not forget to load the layout file created with the visual designer. For example:
    'Activity.LoadLayout("Layout1")

End Sub

Sub Activity_Resume
Log (Activity.GetStartingIntent)
End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

#Region  Service Attributes
    #StartAtBoot: False
 
#End Region

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.

End Sub

Sub Service_Create

End Sub

Sub Service_Start (StartingIntent As Intent)
Msgbox(StartingIntent.Action, "test")
End Sub

Sub Service_Destroy

End Sub

'This code will be applied to the manifest file during compilation.
'You do not need to modify it in most cases.
'See this link for for more information: https://www.b4x.com/forum/showthread.php?p=78136
AddManifestText(
<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="14"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
SetApplicationAttribute(android:theme, "@android:style/Theme.Holo")
'End of default text.
AddPermission(android.permission.MODIFY_AUDIO_SETTINGS)
AddPermission(android.permission.BLUETOOTH)
AddPermission(android.permission.BLUETOOTH_ADMIN)
AddPermission(android.permission.BROADCAST_STICKY)

AddActivityText(main,  <intent-filter android:priority="1000">
        <action android:name="android.intent.action.VOICE_COMMAND" />
      <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
)

AddActivityText(S1,  <intent-filter android:priority="1000">
        <action android:name="android.intent.action.VOICE_COMMAND" />
      <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
)