好吧,我会再试一次。Android蓝牙例外
我在Ubuntu的设备命令sdptool下面是从我的设备说:
# sdptool browse C0:1B:DC:1F:E2:F1
Browsing C0:1B:DC:1F:E2:F1 ...
Service Name: OBEX Object Push
Service RecHandle: 0x10000
Service Class ID List:
"OBEX Object Push" (0x1105)
Protocol Descriptor List:
"L2CAP" (0x0100)
"RFCOMM" (0x0003)
Channel: 9
"OBEX" (0x0008)
Profile Descriptor List:
"OBEX Object Push" (0x1105)
Version: 0x0100
如你本身的设备不支持RFCOMM协议,OBEX文件传输。我为我的android应用程序提供了一个简单的代码,它尝试通过不安全的RFCOMM通道连接到此设备,仅用于无用户交互。我想连接到这个设备,所以Iam使用设备MAC地址进行连接,并且套接字已经准备就绪,logcat这样说。
但我只得到了错误:
Connection refused
有想法,在Java代码中的MAC地址是从以下上面列出的不同。
因此,这里是我的代码:
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.UUID;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class SimpleConnectAndroidActivity extends Activity {
final static String toast = "IAM HERE";
final static String TAG ="SimpleConnect";
UUID MY_UUID;
BluetoothDevice bd;
BluetoothAdapter ba;
Button connectButton;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//MY_UUID = new UUID(0x0100 , 0x1000);
// MY_UUID = UUID.fromString("8e1f0cf7-508f-4875-b62c-fbb67fd34812");
connectButton = (Button)findViewById(R.id.button1);
connectButton.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
BluetoothSocket tmp = null;
BluetoothDevice device = BluetoothAdapter.getDefaultAdapter().getRemoteDevice("00:1B:DC:0F:EC:7E");
Method m = null;
try {
m = device.getClass().getMethod("createInsecureRfcommSocket", new Class[] {int.class});
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
tmp = (BluetoothSocket) m.invoke(device, 1);
} catch (IllegalArgumentException e) {
Toast.makeText(getApplicationContext(), "Exception: " + e.getMessage(), Toast.LENGTH_LONG).show();
} catch (IllegalAccessException e) {
Toast.makeText(getApplicationContext(), "Exception: " + e.getMessage(), Toast.LENGTH_LONG).show();
e.printStackTrace();
} catch (InvocationTargetException e) {
Toast.makeText(getApplicationContext(), "Exception: " + e.getMessage(), Toast.LENGTH_LONG).show();
e.printStackTrace();
}
try {
tmp.connect();
} catch (IOException e) {
Toast.makeText(getApplicationContext(), "Exception: " + e.getMessage(), Toast.LENGTH_LONG).show();
try {
tmp.close();
} catch (IOException e1) {
Toast.makeText(getApplicationContext(), "Socket closed!" + e.getMessage(), Toast.LENGTH_LONG).show();
}
}
boolean con = tmp.isConnected();
if(con)
Toast.makeText(getApplicationContext(), "Connection was made!", Toast.LENGTH_LONG).show();
else
Toast.makeText(getApplicationContext(), "Connection was not made!", Toast.LENGTH_LONG).show();
}
});
}
}
我读过几个地方,它应该由联合国配对和对重新工作,但是这并没有解决我的问题。