我使用蓝牙socket通信，服务器端使用socket = mmServerSocket.accept()这个语句，可是这里总是报错！ 错误如下：
java.io.IOException: Not able to register SDP record for mango
at android.bluetooth.BluetoothAdapter.createNewRfcommSocketAndRecord(BluetoothAdapter.java:890)
at android.bluetooth.BluetoothAdapter.listenUsingRfcommWithServiceRecord(BluetoothAdapter.java:813)
at com.card.test.receivecard$AcceptThread.<init>(receivecard.java:118)
at com.card.test.receivecard.onStart(receivecard.java:96)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1129)
at android.app.Activity.performStart(Activity.java:3797)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1620)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3683)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)
at dalvik.system.NativeStart.main(Native Method)
null
threadid=9: thread exiting with uncaught exception (group=0x401f6560)
ATAL EXCEPTION: Thread-10
java.lang.NullPointerException
at com.card.test.receivecard$AcceptThread.run(receivecard.java:132)
我的接收端代码片段如下：
private class AcceptThread extends Thread {
private final BluetoothServerSocket mmServerSocket;
private InputStream mmInStream;
public AcceptThread() {
final String SPP_UUID = "00001101-0000-1000-8000-00805F9B34FB";
UUID uuid = UUID.fromString(SPP_UUID);
BluetoothServerSocket tmp = null;
try {
tmp = mBluetoothAdapter.listenUsingRfcommWithServiceRecord(Name,uuid);
} catch (IOException e) {
e.printStackTrace();
}
mmServerSocket = tmp;
}
public void run() {
BluetoothSocket socket = null;
// Keep listening until exception occurs or a socket is returned
while (true) {
try {