localDevice .setDiscoverable(DiscoveryAgent.GIAC) failed! the progrem is blocked

[wanderingman]

When I try a blutooth demo, I encountered some problems at starting booth connection;
the code as follows;
try
{
System.out.println("$$$ getLocalDevice start 1");
LocalDevice localDevice = LocalDevice.getLocalDevice();


System.out.println("$$$ setDiscoverable start 2");

localDevice .setDiscoverable(DiscoveryAgent.GIAC);

System.out.println("$$$ setDiscoverable sucess 3 ");

}
catch(BluetoothStateException e)
{
System.out.println("$$$ setDiscoverable failed 4 ");
String msg = "Error changing inquiry access type: " +
e.getMessage();
ErrorScreen.showError(msg, settingsList);
}

when I execute this code in nokia emulator, the midlet progrem is blocked , console messages only as follows:

System.out.println("$$$ getLocalDevice start 1");
System.out.println("$$$ setDiscoverable start 2");

the trace message 3 or 4 cant't be printed forever , so I think the progrem is blocked;


What's the problem with the code? Or some configurations of my emulator cause the problem;

Please help me! Thank you!


the emulator is Nokia_Prototype_SDK_4_0\devices\Prototype_4_0_S40_128x160_MIDP_Emulator;
my develop platform is Eclipse + Nokia_Prototype_SDK_4_0 + carbide1.0

[traud]

I would guess you do not get a BluetoothStateException. Try again with a catch block for Throwable or at least with Exception. Additionally, I would use a Platform SDK, only.

[wanderingman]

I change my code:

As follows:

try
{
System.out.println("$$$ getLocalDevice start 1");
LocalDevice localDevice = LocalDevice.getLocalDevice();


System.out.println("$$$ setDiscoverable start 2");

localDevice .setDiscoverable(DiscoveryAgent.GIAC);

System.out.println("$$$ setDiscoverable sucess 3 ");

}
catch(Exception e) //this is the change code
{
System.out.println("$$$ setDiscoverable failed 4 ");
String msg = "Error changing inquiry access type: " +
e.getMessage();
ErrorScreen.showError(msg, settingsList);
}


but the result is the same as before; No any exception can be catched! The progrem is blocked;
your annother suggestion is to use other platform sdk! Can you tell which sdk is corret? How can I use them! Thank you!

[traud]

It depends on which phone (model and/or series) you are targeting. Please read …

[wanderingman]

After I change the Nokia device Lib, The problem disappeared! Thank you!