Android Question Check microphone

GvD

GvD

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is it possible to determine whether the microphone is already switched on or in use by an other application?
 
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Peter Simpson

Peter Simpson

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GvD said:
is it possible to determine whether the microphone is already switched on or in use by an other application?
Click to expand...

Try this,
Try this: 
Sub Class_Globals
    Private Root As B4XView
    Private XUI As XUI
End Sub

Public Sub Initialize
'    B4XPages.GetManager.LogEvents = True
End Sub

'This event will be called once, before the page becomes visible.
Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
End Sub

'You can see the list of page related events in the B4XPagesManager object. The event name is B4XPage.

Private Sub Button1_Click
    Dim AudioManager As JavaObject
        AudioManager.InitializeContext
        AudioManager = AudioManager.RunMethod("getSystemService", Array("audio"))
    Dim Mode As Int = AudioManager.RunMethod("getMode", Null)
  
    If Mode = 3 Or Mode = 2 Then ' MODE_IN_COMMUNICATION = 3, MODE_IN_CALL = 2
        Log(True)
    Else
        Log(False)
    End If
End Sub


Enjoy...
 
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Peter Simpson

Peter Simpson

Expert
Licensed User
Longtime User
Hello,
GvD said:
is it possible to determine whether the microphone is already switched on or in use by an other application?
Click to expand...
Here are my test results

Test results: 
Logger connected to:  Google Pixel 7 Pro
--------- beginning of main
Copying updated assets files (1)
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create (first time) **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
false
** Activity (main) Pause event (activity is not paused). **
** Activity (main) Resume **
true
** Activity (main) Pause event (activity is not paused). **

First I ran the test app and pressed the button with the code, the result was false as it should be, the mic is not being used. I then rang by business phone via WhatsApp from my test phone, with WhatsApp connected I went back to the test app and pressed the button with the code again, the result was true as it should be as the mic is being used by WhatsApp. I also get the exact same result if I just call my business phone normally via my test phones normal number pad.

I can't say much more than that.


Enjoy...
 
Last edited:
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GvD

GvD

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Longtime User
i use an
Version _250118_151418: 
#Region Shared Files
#CustomBuildAction: folders ready, %WINDIR%\System32\Robocopy.exe,"..\..\Shared Files" "..\Files"
'Ctrl + click to sync files: ide://run?file=%WINDIR%\System32\Robocopy.exe&args=..\..\Shared+Files&args=..\Files&FilesSync=True
#End Region

'Ctrl + click to export as zip: ide://run?File=%B4X%\Zipper.jar&Args=Project.zip

Sub Class_Globals
    Private Root As B4XView
    Private xui As XUI
    Private rp As RuntimePermissions
End Sub

Public Sub Initialize
    ' auskommentieren, wenn's läuft
  B4XPages.GetManager.LogEvents = True

End Sub

'This event will be called once, before the page becomes visible.
Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
    RequestMicrophonePermission
End Sub

'You can see the list of page related events in the B4XPagesManager object. The event name is B4XPage.

Private Sub Button1_Click
    StartTesting
    
End Sub

Sub StartTesting
    For x = 1 To 30
        CheckIt
        'CheckMicrophoneUsage        ' nur für Android ab Version 29
        CheckMicrophoneUsageOldAndroid
        CheckMicrophoneUsageDirect
        CheckMicrophoneUsageDirectV2
        Sleep(1000)
        Log( (x) & "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
    Next
End Sub

Private Sub Button2_Click
    Log("Bye")
    ExitApplication
End Sub

Private Sub CheckIt
    Dim AudioManager As JavaObject
    AudioManager.InitializeContext
    AudioManager = AudioManager.RunMethod("getSystemService", Array("audio"))
    Dim Mode As Int = AudioManager.RunMethod("getMode", Null)
 
    If Mode = 3 Or Mode = 2 Then ' MODE_IN_COMMUNICATION = 3, MODE_IN_CALL = 2
        Log("CheckIT: Possibly mobile is aktive")
    Else
        Log("CheckIT: No activity detectable")
    End If
    
End Sub

Private Sub CheckMicrophoneUsageOldAndroid
    Try
        Dim AudioRecord As JavaObject
        Dim sampleRate As Int = 44100
        Dim channelConfig As Int = 16 ' CHANNEL_IN_MONO
        Dim audioFormat As Int = 2 ' ENCODING_PCM_16BIT
        Dim bufferSize As Int = AudioRecord.RunMethod("getMinBufferSize", Array(sampleRate, channelConfig, audioFormat))
        AudioRecord = AudioRecord.InitializeNewInstance("android.media.AudioRecord", Array(1, sampleRate, channelConfig, audioFormat, bufferSize)) ' AUDIO_SOURCE_MIC = 1
        AudioRecord.RunMethod("startRecording", Null)

        Dim state As Int = AudioRecord.RunMethod("getRecordingState", Null)
        If state = 3 Then ' RECORDSTATE_RECORDING = 3
            Log("OldAndroid: The microphone is currently in use!")
        Else
            Log("OldAndroid: Microphone is not active.")
        End If

        AudioRecord.RunMethod("stop", Null)
        AudioRecord.RunMethod("release", Null)
    Catch
        'Log("OldAndroid: Fehler beim Zugriff auf das Mikrofon. Es könnte von einer anderen App verwendet werden.")
        Log("OldAndroid: Error accessing the microphone. It could be used by another app.")
    End Try
    
End Sub

Private Sub CheckMicrophoneUsage
    ' Empfohlene Methode für API 29+ / Recommended method for API 29+
    Dim AudioManager As JavaObject
    AudioManager.InitializeContext
    AudioManager = AudioManager.RunMethod("getSystemService", Array("audio"))

    Dim isRecording As Boolean = AudioManager.RunMethod("isRecording", Null)
    If isRecording Then
        Log("CheckMicrophoneUsage: The microphone is currently in use!")
    Else
        Log("CheckMicrophoneUsage: Microphone is not active.")
    End If
End Sub


Private Sub CheckMicrophoneUsageDirect
    ' direkter Test des Zugriffs
    Try
        Dim AudioRecord As JavaObject
        Dim sampleRate As Int = 44100
        Dim channelConfig As Int = 16 ' CHANNEL_IN_MONO
        Dim audioFormat As Int = 2 ' ENCODING_PCM_16BIT
        Dim bufferSize As Int = AudioRecord.RunMethod("getMinBufferSize", Array(sampleRate, channelConfig, audioFormat))
        AudioRecord = AudioRecord.InitializeNewInstance("android.media.AudioRecord", Array(1, sampleRate, channelConfig, audioFormat, bufferSize)) ' AUDIO_SOURCE_MIC = 1
        AudioRecord.RunMethod("startRecording", Null)

        Dim state As Int = AudioRecord.RunMethod("getRecordingState", Null)
        If state = 3 Then ' RECORDSTATE_RECORDING = 3
                    Log("Direct: Microphone is actively used.")
        Else
                    Log("Direct:  Microphone is not active.")
        End If

        AudioRecord.RunMethod("stop", Null)
        AudioRecord.RunMethod("release", Null)
    Catch
            'Log("Direct: Fehler beim Zugriff auf das Mikrofon. Es könnte von einer anderen App verwendet werden.")
            Log("Direct: Error accessing the microphone. It could be used by another app.")
    End Try
End Sub

Private Sub CheckMicrophoneUsageDirectV2
    Try
        ' Verwenden von AudioManager, um den Mikrofonstatus zu prüfen
        Dim AudioManager As JavaObject
        AudioManager.InitializeContext
        AudioManager = AudioManager.RunMethod("getSystemService", Array("audio"))

        ' Holen des Modus des Systems
        Dim Mode As Int = AudioManager.RunMethod("getMode", Null)
        
        ' Prüfen, ob das Mikrofon in einem aktiven Modus ist
        If Mode = 3 Or Mode = 2 Then ' 3 = MODE_IN_COMMUNICATION, 2 = MODE_IN_CALL
                    'Log("DirectV2: Mikrofon wird aktiv verwendet (Telefonie oder Kommunikation).")
                    Log("DirectV2: Microphone is actively used (telephony or communication).")
        Else
                    'Log("DirectV2: Mikrofon wird nicht aktiv verwendet.")
                    Log("DirectV2: Microphone is not actively used.")
        End If
    Catch
            'Log("DirectV2: Fehler beim Abrufen des Mikrofonstatus.")
            Log("DirectV2: Error when retrieving the microphone status.")
    End Try
End Sub



' Runtime-Berechtigung anfragen
Private Sub RequestMicrophonePermission
    Log("Check authorisation...")
    ' Überprüfe, ob die Berechtigung bereits erteilt wurde
    If rp.Check(rp.PERMISSION_RECORD_AUDIO) = False Then
        ' Fordere die Berechtigung an, wenn sie noch nicht erteilt wurde
        rp.CheckAndRequest(rp.PERMISSION_RECORD_AUDIO)
        ' Warte auf das Ergebnis der Berechtigungsabfrage
        Wait For Activity_PermissionResult (Permission As String, Result As Boolean)
        If Result Then
            'Log("Mikrofon-Berechtigung wurde gewährt.")
            Log("Mikrofon-Berechtigung wurde gewährt.")
        Else
            'Log("Mikrofon-Berechtigung wurde verweigert.")
            Log("Microphone authorisation was denied.")
        End If
    Else
        'Log("Mikrofon-Berechtigung wurde bereits gewährt.")
        Log("Microphone authorisation has already been granted.")
    End If
End Sub
 
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GvD

GvD

Member
Licensed User
Longtime User
I use an Samsung Note 10 with Android version 12...


*** Logs ***

*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create (first time) **
*** mainpage: B4XPage_Created
Check authorisation...
Microphone authorisation has already been granted.
*** mainpage: B4XPage_Appear
** Activity (main) Resume **

###################################################################################
I used the ‘dictation machine’ between call 9 and 12 ~~~~ - but it was not recognised.
###################################################################################

9~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: No activity detectable
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is not actively used.
10~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: No activity detectable
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is not actively used.
11~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: No activity detectable
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is not actively used.
12~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: No activity detectable
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is not actively used.
13~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: No activity detectable
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is not actively used.


#########################################################################################
here i used the telephone between call 22 and 25 ~~~~ - it was recognised by Sub CheckIt
#########################################################################################

20~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: No activity detectable
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is not actively used.
21~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: No activity detectable
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is not actively used.
22~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: Possibly mobile is aktive
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is actively used (telephony or communication).
23~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: Possibly mobile is aktive
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is actively used (telephony or communication).
24~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CheckIT: Possibly mobile is aktive
OldAndroid: Error accessing the microphone. It could be used by another app.
Direct: Error accessing the microphone. It could be used by another app.
DirectV2: Microphone is actively used (telephony or communication).
25~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

any idea why it can only detect the phone call?
 
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