Android Question AudioRecordApp.Record give Object should first be initialized

mtechteam · Jan 18, 2021

I copied the sample code for AudioRecordApp directly from the help in the library and I am getting the following error.

java.lang.RuntimeException: Object should first be initialized (List).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
at anywheresoftware.b4a.objects.collections.List.getSize(List.java:129)
at anywheresoftware.b4a.audio.AudioRecordApp.Record(AudioRecordApp.java:97)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runVoidMethod(Shell.java:777)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:354)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.BA$1.run(BA.java:335)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:8167)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)

Apparently a list within the AudioRecordApp has not been initialized. Any ideas what is going on?
(The VideoRecordApp using Record3 is working fine)

MikeSW17 · Jan 18, 2021

1) Are you talking about this Library? https://www.b4x.com/android/forum/threads/audiorecord-library.13993/
2) What happens when you run the attached sample (artest) - As it's *very* old, you'll need at least to edit the sdk versions in the manifest.

So much of the code is 'old' you may need to many updates to the test project code.

When I try the artest project, with just sdk version changes, it crashes at line 85,

B4X:

    OutFile.Initialize2(File.DirDefaultExternal,"test.wav",False,True)

B4A tells us all references to 'DirDefaultExternal' needs to be changed.

mtechteam · Jan 18, 2021

The built in Audio Library v1.71 Here is the link for the documentation: https://www.b4x.com/android/help/audio.html

I did change the File references to Internal. It didn't make any difference.

Erel · Jan 19, 2021

The example code is indeed old and not relevant any more. I will delete it.
Check this: https://www.b4x.com/android/forum/threads/videorecordapp-with-fileprovider.101248/#content

mtechteam · Jan 19, 2021

Thank you. I did find that and as I mentioned above, the Video one is working for me (because of that thread). How should I change the Audio example to also work? Or does it need a new "Record3" method as well?

Erel · Jan 20, 2021

I don't recommend using this intent. Seems like there isn't a matching app by default.

You can try this code (B4XPages):

B4X:

Private Sub Button1_Click
    Dim in As Intent
    in.Initialize("android.provider.MediaStore.RECORD_SOUND", "")
    Dim pm As PackageManager
    Log(pm.QueryIntentActivities(in))
    StartActivityForResult(in)
    Wait For ion_Event (MethodName As String, Args() As Object)
    Log(MethodName)
    Log(Args(0))
End Sub

Sub StartActivityForResult(i As Intent)
    Dim jo As JavaObject = GetBA
    ion = jo.CreateEvent("anywheresoftware.b4a.IOnActivityResult", "ion", Null)
    jo.RunMethod("startActivityForResult", Array As Object(ion, i))
End Sub

Sub GetBA As Object
    Dim jo As JavaObject = Me
    Return jo.RunMethod("getBA", Null)
End Sub

mtechteam · Jan 20, 2021

ion was not declared, so I declared it as an object (Dim ion as Object) in Process_Globals. This allowed it to compile, but when attempting to run it, I received this:

(The line is "Return jo.RunMethod("getBA", Null)" - it's not line 95 below as given because I removed the top two region definitions.)

Error occurred on line: 95 (Main)
java.lang.RuntimeException: Method: getBA not found in: org.techteam.itsyours.main
at anywheresoftware.b4j.object.JavaObject$MethodCache.getMethod(JavaObject.java:366)
at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:119)
at org.techteam.itsyours.main._getba(main.java:468)
at org.techteam.itsyours.main._startactivityforresult(main.java:552)
at org.techteam.itsyours.main$ResumableSub_RecordAudio_Click.resume(main.java:516)
at org.techteam.itsyours.main._recordaudio_click(main.java:478)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:348)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.BA$1.run(BA.java:335)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:7948)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1075)

I changed
Return jo.RunMethod("getBA", Null)
to
Return jo.RunMethod("GetBA", Null)
but that didn't seem to make any difference.

Here is my code (minus the starter service and accompanying FileProvider class):

B4X:

Sub Process_Globals
    Dim audioRecorder As AudioRecordApp
    Dim videoRecorder As VideoRecordApp
    Dim MP As MediaPlayer
    Dim ion As Object
End Sub

Sub Globals
    Dim vv As VideoView
End Sub

Sub Activity_Create(FirstTime As Boolean)
    If FirstTime Then
        audioRecorder.Initialize("audioRecorder")
        videoRecorder.Initialize("videoRecorder")
    End If
    vv.Initialize("vv")
    Activity.AddView(vv, 0, 0, 100%x, 100%y)
    Activity.AddMenuItem("Record Video", "RecordVideo")
    Activity.AddMenuItem("Record Audio", "RecordAudio")
    ToastMessageShow("Press on Menu button...", True)

End Sub

Sub RecordVideo_Click
    Dim folder As String = Starter.Provider.SharedFolder
    Dim FileName As String = "1.mp4"
    videoRecorder.Record3(folder, FileName, -1, Starter.Provider.GetFileUri(FileName))
End Sub

Sub videoRecorder_RecordComplete (Success As Boolean)
    Log(Success)
    If Success Then
        MP.Initialize2("MP")
        MP.Load(Starter.Provider.SharedFolder, "1.mp4")
        MP.Play
        'vv.LoadVideo(File.DirRootExternal, Starter.Provider.GetFileUri("1.mp4"))
        'vv.Play
    End If
End Sub

Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

Private Sub RecordAudio_Click
    Dim in As Intent
    in.Initialize("android.provider.MediaStore.RECORD_SOUND", "")
    Dim pm As PackageManager
    Log(pm.QueryIntentActivities(in))
    StartActivityForResult(in)
    Wait For ion_Event (MethodName As String, Args() As Object)
    Log(MethodName)
    Log(Args(0))
End Sub

Sub StartActivityForResult(i As Intent)
    Dim jo As JavaObject = GetBA
    ion = jo.CreateEvent("anywheresoftware.b4a.IOnActivityResult", "ion", Null)
    jo.RunMethod("startActivityForResult", Array As Object(ion, i))
End Sub

Sub GetBA As Object
    Dim jo As JavaObject = Me
    Return jo.RunMethod("getBA", Null)
End Sub

MikeSW17 · Jan 20, 2021

(The line is "Return jo.RunMethod("getBA", Null)" - it's not line 95 below as given because I removed the top two region definitions.)

I don't follow how line 95 isn't really line 95. The line given in the error log will relate to the code being executed?
Are you sure you've recompiled and installed the app?

Erel · Jan 20, 2021

Create a new B4XPages project and put my code in B4XMainPage. You should indeed add ion as a Class_Global object.

mtechteam · Jan 20, 2021

Upgraded to B4a 10.5. Perfect. That works great. Can you tell me how to know the name of the file? It shows as "Voice 007" on the display to record and stored it in the Voice Recorder folder. But programmatically how can I know that? And using the newer scheme of FileProvider is probably needed as well?

Erel · Jan 21, 2021

You don't need FileProvider here.

B4X:

Wait For ion_Event (MethodName As String, Args() As Object)
Dim resultCode As Int = Args(0)
If resultCode = -1 Then 'OK 
  Dim in As Intent = Args(1)
   Log(in)
   Log(in.GetData)
End If

What is the output of this code?

mtechteam · Jan 21, 2021

Output for this code

B4X:

Private Sub Button1_Click
    Dim in As Intent
    in.Initialize("android.provider.MediaStore.RECORD_SOUND", "")
    Dim pm As PackageManager
    Log("#1 " & pm.QueryIntentActivities(in))
    StartActivityForResult(in)
    Wait For ion_Event (MethodName As String, Args() As Object)
    Log("#2 " & MethodName)
    Log("#3 " & Args(0))
    Dim resultCode As Int = Args(0)
    If resultCode = -1 Then ' Ok
        Dim in As Intent = Args(1)
        Log("#4 " & in)
        Log("#5 " & in.GetData)
    End If
End Sub

is:

#1 (ArrayList) [com.sec.android.app.voicenote/.activity.SimpleActivity]
** Activity (main) Pause event (activity is not paused). **
sending message to waiting queue (OnActivityResult)
running waiting messages (1)
#2 ResultArrived
#3 -1
#4 (Intent) Intent { dat=content://media/external/audio/media/271 flg=0x1 }
#5 content://media/external/audio/media/271
** Activity (main) Resume **
** Activity (main) Pause event (activity is not paused). **
** Service (starter) Destroy (ignored)**

Erel · Jan 24, 2021

B4X:

Dim uri As String = in.GetData
File.Copy("ContentDir", uri, File.DirInternal, "record1.mp3")

mtechteam · Jan 25, 2021

Got it. I have a file that I can play in various programs. Thank you for all the follow through. As many have said before, B4X is a great product suite!

Android Question AudioRecordApp.Record give Object should first be initialized

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