Android Question Media play by Blutooth headset instead of wire headset.

[LUHUANWEI]

It is possible to play media via Bluetooth headset while both BT headset and wire headset are connected? or play media by both BT headset and wire headset in the same time, now only wire headset when I play the media. My code as below.

Sub SetEarPhone(Value As Boolean)
Dim r As Reflector
r.Target = r.GetContext
r.Target = r.RunMethod2("getSystemService", "audio", "java.lang.String")
Dim mode As Int
If Value Then mode = 2 Else mode = 0
r.RunMethod2("setMode", mode, "java.lang.int")
End Sub
Sub StartBluetoothSco()
Dim r As Reflector
r.Target = r.GetContext
r.Target = r.RunMethod2("getSystemService", "audio", "java.lang.String")
r.RunMethod("startBluetoothSco")
r.Target = r.GetContext
r.Target = r.RunMethod2("getSystemService", "audio", "java.lang.String")
r.RunMethod2("setMode", 2, "java.lang.int")
End Sub
Sub Activity_Create(FirstTime As Boolean)
SetEarPhone(True)
StartBluetoothSco
End Sub
Sub Activity_Pause(UserClosed As Boolean)
SetEarPhone(False)
End Sub

 

[Erel]

Please use [code]code here...[/code] tags when posting code.

Try to set the audio stream to STREAM_RING:

Dim jo As JavaObject = MediaPlayer1
jo.GetFieldJO("mp").RunMethod("setAudioStreamType", Array(2)) '2 = STREAM_RING

 

[LUHUANWEI]

Hi Erel,
Thanks for reply, because I am poor on Java, hope to have more details about how to set audio stream and where should I insert the code you posted, thank you very much!

 

[Erel]

There is no Java here. You need to add this code after you initialize MediaPlayer (change MediaPlayer1 to your own variable).

 

[LUHUANWEI]

Hi Erel,
How to understand this:
jo.GetFieldJO("mp").RunMethod("setAudioStreamType", Array(2))
what is "mp" and what is "Array(2)"?

 

[udg]

Hi, I'm not Erel but please have a look here.

mp stands for MediaPlayer
method "setAudioStreamType" expects an int; passing 2 is like passing the costant "STREAM_RING" as noted by Erel in his post above.
Other possible audio stream type values may be found here.

 

[LUHUANWEI]

Thanks.

 

[LUHUANWEI]

Dear All,
I got below error when I debug my app, sp is Mediaplayer dim in Sub Process_Globals. I can't understand why sp not found.
Hope to get more help on API, thanks.

** Activity (main) Create, isFirst = true **
Error occurred on line: 125 (Main)
java.lang.RuntimeException: Field: sp not found in: anywheresoftware.b4a.objects.MediaPlayerWrapper
at anywheresoftware.b4j.object.JavaObject$FieldCache.getField(JavaObject.java:306)
at anywheresoftware.b4j.object.JavaObject.GetField(JavaObject.java:181)
at anywheresoftware.b4j.object.JavaObject.GetFieldJO(JavaObject.java:188)
at KUXUAN.YIN.main._activity_create(main.java:559)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:342)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:139)
at KUXUAN.YIN.main.afterFirstLayout(main.java:102)
at KUXUAN.YIN.main.access$000(main.java:17)
at KUXUAN.YIN.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5345)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:947)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742)

 

[DonManfred]

Dear All,
I got below error when I debug my app

Always create a new thread for a new question.

 

[Erel]

The internal field name is mp. It doesn't matter that your variable is named differently.