Android Question CameraEx - EnableShutterSound (no sound?)

yckhor · Aug 20, 2013

Hi,
I am using CameraEx in my app and would like to enable shutter sound. Found the following sub to do it (posted by Erel).

Public Sub EnableShutterSound(Enabled As Boolean) As Boolean
r.target = nativeCam
Return r.RunMethod2("enableShutterSound", Enabled, "java.lang.boolean")
End Sub

It runs without any error messages on my Galaxy S4 but somehow, upon clicking on btnShutter button, a photo being taken but no shutter sound can be heard. I had called the EnableShutterSound(True) in my Camera_Ready() before CameraEx.CommitParameters. Am I placing it at the right location?

Thanks in anticipation.

Erel · Aug 20, 2013

The sounds should be enabled by default. Are you sure that all the volume channels are high enough?

Which value is returned from this sub? It should be true.

yckhor · Aug 20, 2013

Just checked.
Log("Enable Shutter Sound: " & CameraEx.EnableShutterSound(True))

The sub returned TRUE.

Erel · Aug 20, 2013

Your code is correct. I'm not sure why there isn't a shutter sound.

yckhor · Aug 20, 2013

Could this be a peculiar bug of Samsung Galaxy S4 variant of Android? Have been puzzling with some weird behaviours. Things that work fine in a rooted stock android 4.2.2 will behave differently in S4, also 4.2.2. By the way, I tried the bundled (samsung) camera app and it does make a shutter sound when I take a photo, but again, it could be using a WAV to mimic that instead of using enableShutterSound

I can bypass this playing a tiny WAV file but this may not be a resource-wise approach. Anyone tried on the same device, please share your findings.

ComposerB4A · Nov 14, 2013

Hi, i view the interesting post and tried this code and appear this error in log:

B4X:

** Activity (main) Resume **
cameraexclass_enableshuttersound (B4A line: 284)
Return r.RunMethod2("enableShutterSound", Enabled, "java.lang.boolean")
java.lang.NoSuchMethodException: enableShutterSound
    at java.lang.ClassCache.findMethodByName(ClassCache.java:278)
    at java.lang.Class.getDeclaredMethod(Class.java:762)
    at anywheresoftware.b4a.agraham.reflection.Reflection.runmethod(Reflection.java:214)
    at anywheresoftware.b4a.agraham.reflection.Reflection.RunMethod2(Reflection.java:817)
    at anywheresoftware.b4a.samples.camera.cameraexclass._enableshuttersound(cameraexclass.java:270)
    at anywheresoftware.b4a.samples.camera.main._initializecamera(main.java:686)
    at anywheresoftware.b4a.samples.camera.main._activity_resume(main.java:340)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:538)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:170)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:154)
    at anywheresoftware.b4a.samples.camera.main.afterFirstLayout(main.java:104)
    at anywheresoftware.b4a.samples.camera.main.access$100(main.java:16)
    at anywheresoftware.b4a.samples.camera.main$WaitForLayout.run(main.java:76)
    at android.os.Handler.handleCallback(Handler.java:618)
    at android.os.Handler.dispatchMessage(Handler.java:123)
    at android.os.Looper.loop(SourceFile:351)
    at android.app.ActivityThread.main(ActivityThread.java:3814)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:538)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:659)
    at dalvik.system.NativeStart.main(Native Method)
90
[Height=240, IsInitialized=false, Width=320
]

stevel05 · Nov 14, 2013

What version of Android are you using? This is only available from 4.2 (API level 17) see the documentation here.

ComposerB4A · Nov 14, 2013

thanks, i understand the phone is Android 2.3 its is because of the error mentionated

Computersmith64 · Aug 13, 2014

Erel said:
Your code is correct. I'm not sure why there isn't a shutter sound.

I know this is an old thread, however I have the same problem on both my Nexus 7 & Galaxy S3. Even though the shutter sound should be enabled by default, I have also tried calling EnableShutterSound(True) in my code & I still can't get it to work. I don't think it's an issue with the devices, because I put:

B4X:

Private Sub Play_Click_Sound
    Dim mp As MediaPlayer
   
    mp.Initialize
    mp.Load("/", "system/media/audio/ui/camera_click.ogg")
    mp.Play
End Sub

into the CameraExClass & call it from TakePicture:

B4X:

Public Sub TakePicture
    Play_Click_Sound
    cam.TakePicture
End Sub

& I get the sound. Any clues as to why there is no sound via the Camera library / CameraExClass?

Thanks - Colin.

aeropic · Oct 4, 2014

Computersmith64 said:
I have also tried calling EnableShutterSound(True) in my code & I still can't get it to work.

Hi Colin,
I get the same problem with my galaxy S3: no sound with cameraEx.
Moreover when trying this code: (uncommented "if .. then")

B4X:

If api >= 17 Then
                'If camEx.canDisableShutterSound Then
                    camEx.enableShutterSound(True)
                    ToastMessageShow("ok",False)
                'End If
           End If

with the following declaration in camEx :

B4X:

Public Sub EnableShutterSound(Enabled As Boolean) As Boolean
r.target = nativeCam
Return r.RunMethod2("enableShutterSound", Enabled, "java.lang.boolean")
End Sub

Public Sub canDisableShutterSound As Boolean
r.target = parameters
    Return r.RunMethod("canDisableShutterSound")
End Sub

I get a JAVA exception canDisableShutterSound unknown method...
My S3 runs jellybean 4.3 with API >= 17... It should work ?

aeropic · Oct 4, 2014

me again ...

I've just tried the "Play_Click_Sound" routine...
It works not too bad with the standard "camera_Click.ogg" sound but fails with others:

B4X:

Private Sub Play_Click_Sound
    Dim mp As MediaPlayer
  
    mp.Initialize
   ' mp.Load("/", "system/media/audio/ui/camera_click.ogg")
    ' mp.Load("/", "system/media/audio/ui/camera_Stop.ogg")
      mp.Load("/", "system/media/audio/ui/call_Connect.ogg")
    mp.Play

In fact any other sound fails... with this Java IOException. In addition the camera_Click is not systematically well played. Sometimes it does not play at all, sometimes it just plays 50% ...

Any Idea ?

java.io.IOException: Prepare failed.: status=0x1
at android.media.MediaPlayer.prepare(Native Method)
at anywheresoftware.b4a.objects.MediaPlayerWrapper.loadAfterReset(MediaPlayerWrapper.java:97)
at anywheresoftware.b4a.objects.MediaPlayerWrapper.Load(MediaPlayerWrapper.java:62)
at com.aeropic.CameraUnlockFree.cameraexclass._play_click_sound(cameraexclass.java:1279)
at com.aeropic.CameraUnlockFree.cameraexclass._takepicture(cameraexclass.java:2042)
at com.aeropic.CameraUnlockFree.cameraexclass._camera_focusdone(cameraexclass.java:83)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:159)
at anywheresoftware.b4a.objects.CameraW$3.onAutoFocus(CameraW.java:195)
at android.hardware.Camera$EventHandler.handleMessage(Camera.java:886)
at android.os.Handler.dispatchMessage(Handler.java:99)
at anywheresoftware.b4a.Msgbox.waitForMessage(Msgbox.java:200)
at anywheresoftware.b4a.Msgbox.waitForMessage(Msgbox.java:168)
at anywheresoftware.b4a.keywords.Common.DoEvents(Common.java:380)
at com.aeropic.CameraUnlockFree.a01._btnfocus_click(a01.java:841)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:163)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:159)
at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:66)
at android.view.View.performClick(View.java:4475)
at android.view.View$PerformClick.run(View.java:18786)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5419)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1209)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1025)
at dalvik.system.NativeStart.main(Native Method)
java.io.IOException: Prepare failed.: status=0x1

Erel · Oct 5, 2014

Don't create a new MediaPlayer object each time. Instead create it once and load the file and then just call mp.Play.

aeropic · Oct 5, 2014

thanks Erel. Indeed with this code

B4X:

 mp.Initialize
    'mp.Load("/", "system/media/audio/ui/camera_click.ogg")
     mp.Load("/", "system/media/audio/ui/camera_Stop.ogg")
    '  mp.Load("/", "system/media/audio/ui/call_Connect.ogg")

placed in initialize routine of CamEx I get it working fine with "camera_click.ogg" sound.
But it does not work with other sounds and generates the exception

java.io.IOException: Prepare failed.: status=0x1
at android.media.MediaPlayer.prepare(Native Method)
at anywheresoftware.b4a.objects.MediaPlayerWrapper.loadAfterReset(MediaPlayerWrapper.java:97)
at anywheresoftware.b4a.objects.MediaPlayerWrapper.Load(MediaPlayerWrapper.java:62)
at com.aeropic.CameraUnlockFree.cameraexclass._initialize(cameraexclass.java:1218)
at com.aeropic.CameraUnlockFree.a01._initializecamera(a01.java:1748)
at com.aeropic.CameraUnlockFree.a01._camera1_ready(a01.java:1292)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:853)
at anywheresoftware.b4a.keywords.Common.CallSubNew2(Common.java:810)
at com.aeropic.CameraUnlockFree.cameraexclass._camera_ready(cameraexclass.java:186)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:159)
at anywheresoftware.b4a.objects.CameraW$2$1.run(CameraW.java:139)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at anywheresoftware.b4a.Msgbox.waitForMessage(Msgbox.java:200)
at anywheresoftware.b4a.Msgbox.debugWait(Msgbox.java:158)
at anywheresoftware.b4a.debug.Debug.wait(Debug.java:213)
at anywheresoftware.b4a.debug.Debug.reachBP(Debug.java:260)
at anywheresoftware.b4a.debug.Debug.ErrorCaught(Debug.java:145)
at com.aeropic.CameraUnlockFree.cameraexclass._initialize(cameraexclass.java:1224)
at com.aeropic.CameraUnlockFree.a01._initializecamera(a01.java:1748)
at com.aeropic.CameraUnlockFree.a01._timer1_tick(a01.java:2124)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
at anywheresoftware.b4a.objects.Timer$TickTack.run(Timer.java:105)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5419)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1209)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1025)
at dalvik.system.NativeStart.main(Native Method)

Erel · Oct 5, 2014

This error means that the internal media player has failed to load the file. Your sound file is not supported.

aeropic · Oct 5, 2014

Erel said:
This error means that the internal media player has failed to load the file. Your sound file is not supported.

That's weird... It plays fine when manually launched...

Android Question CameraEx - EnableShutterSound (no sound?)

yckhor

Member

Erel

B4X founder

yckhor

Member

Erel

B4X founder

yckhor

Member

ComposerB4A

Member

stevel05

Expert

ComposerB4A

Member

Computersmith64

Well-Known Member

aeropic

Active Member

aeropic

Active Member

Erel

B4X founder

aeropic

Active Member

Erel

B4X founder

aeropic

Active Member

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