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我正在尝试将我的 android 设备与蓝牙兼容设备连接。我知道这个设备的 MAC 地址,你可以在下面的代码中看到。我也做了几个Toasts只是为了验证代码中的步骤。看来我设法创建了tmp = device.createRfcommSocketToServiceRecord(MY_UUID);我假设这是因为 Toast 在这行代码中引发了一条消息,说一些蓝牙对象地址:

String test = tmp.toString(); 
Toast.makeText(getApplicationContext(), "The bluetooth socket: " +test, Toast.LENGTH_LONG).show(); 

tmp.connect();但是当我使用 API 级别 15,android 4.0时,代码在语义上失败了

这是我的一段代码

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 = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");

    ba = BluetoothAdapter.getDefaultAdapter();

    connectButton = (Button)findViewById(R.id.button1);
    connectButton.setOnClickListener(new OnClickListener() {

        public void onClick(View arg0) {

            boolean b = ba.checkBluetoothAddress("00:1B:DC:0F:EC:7E");
            BluetoothSocket tmp = null; 

            //If valid bluetoothAddress
            if(b) {
                final BluetoothDevice device = ba.getRemoteDevice("00:1B:DC:0F:EC:7E"); //Getting the Verifier Bluetooth 

                //Trying to create a RFCOMM socket to the device
                try {
                    tmp = device.createRfcommSocketToServiceRecord(MY_UUID);

                } catch (IOException e) {

                }

                try {
                    tmp.connect();
                } catch (IOException e) {
                    Toast.makeText(getApplicationContext(), "No connection was made! Exception: " + e.getMessage(), Toast.LENGTH_LONG).show();
                } 
                //Print out the sockets name
                String test = tmp.toString(); 
                Toast.makeText(getApplicationContext(), "The bluetooth socket: " +test, Toast.LENGTH_LONG).show(); 
            }


            else {
                    Toast.makeText(getApplicationContext(), "FALSE, No bluetooth device with this address", Toast.LENGTH_LONG).show();
                }
            }   
    });  
}

}

我知道这应该在一个单独的线程中完成,是的,我阅读了 Google 提供的蓝牙聊天示例。

有人可以帮我吗?

编辑

这是我从 LogCat 得到的唯一信息:

07-06 10:10:22.085: V/BluetoothSocket.cpp(14019): ...fd 63 created (RFCOMM, lm = 26)

编辑 2

好的,现在有一个新错误,但它是一个更好的错误。当我按下连接按钮时,手机要求输入密码以配对设备,但它已经配对!第二次配对后,错误提示:连接被拒绝,另一个异常提示超时。

4

1 回答 1

2

您可以使用以下代码:Method m = device.getClass().getMethod("createRfcommSocket", new Class[] {int.class}); mySocket = (BluetoothSocket) m.invoke(device, 1);

于 2012-07-06T08:12:47.140 回答