我们正在使用Android手机通过蓝牙与传感器进行通信。手机需要定期连接传感器以收集生理数据，并且在两个连接之间可以自动关闭传感器以节省电力。
现在问题是：大约500次后，系统重新启动。然后我们编写了一小段测试程序来模拟整个过程。小测试程序也崩溃了Android手机。
有人可以帮帮我吗？谢谢！这是一个小测试程序。
package zhb.test.MhubTestBtConnect;
import java.io.IOException;
import java.util.Date;
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.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MhubTestBtConnect extends Activity implements OnClickListener{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btnStart = (Button) findViewById(R.id.btn_start_test);
btnStart.setOnClickListener(this);
Button btnStop = (Button) findViewById(R.id.btn_stop_test);
btnStop.setOnClickListener(this);
fBeginView = (TextView) findViewById(R.id.begin_time);
fBeginView.setText("off line");
fEndView = (TextView) findViewById(R.id.end_time);
fEndView.setText("off line");
fShowView = (TextView) findViewById(R.id.show_status);
fShowView.setText("off line");
fShowRunTimesView = (TextView) findViewById(R.id.show_times_status);
fShowRunTimesView.setText("off line");
fInputMac = (EditText) findViewById(R.id.edit_add_mac);
fInputMac.setText("00:19:5D:24:CB:A9");
fDisconnectGap = (EditText) findViewById(R.id.edit_disconnect_gap);
fDisconnectGap.setText("500");
fconnectGap = (EditText) findViewById(R.id.edit_connect_gap);
fconnectGap.setText("1000");
fRunning = false;
}
@Override
public void onClick(View v)
{
switch ( v.getId() )
{
case R.id.btn_start_test:
start();
break;
case R.id.btn_stop_test:
stop();
break;
default:
break;
}
}
private synchronized void start()
{
if ( fRunning == false )
{
fRunning = true;
fMac = fInputMac.getText().toString().toUpperCase();
fConnectRunnable = new ConnectRunnable();
fBeginView.setText(new Date().toLocaleString());
fConnectTimes = 0;
fRunOkTimes = 0;
new Thread(fConnectRunnable).start();
}
}
private synchronized void stop()
{
if ( fRunning == true )
{
fRunning = false;
fConnectRunnable.cancel();
try
{
Thread.sleep(500);
}
catch (InterruptedException exception)
{
exception.printStackTrace();
}
fEndView.setText(new Date().toLocaleString());
}
}
private void connect()
{
Log.d(TAG,"---------- run "+fConnectTimes++ +" times");
String UUID_STRING = "00001101-0000-1000-8000-00805F9B34FB";
// may throws exception
UUID uuid = UUID.fromString(UUID_STRING);
// get adapter
BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
// get remote device
BluetoothDevice btDevice = adapter.getRemoteDevice(fMac);
if ( btDevice == null )
{
Log.e(TAG,"can't get remote device from given MAC : " + fMac);
return;
}
int runResult = 0;
// may throws exception
fBtSocket = null;
try
{
fBtSocket = btDevice.createRfcommSocketToServiceRecord(uuid);
if ( adapter.isDiscovering() == true )
{
adapter.cancelDiscovery();
Log.d(TAG,"cancel discover");
}
fBtSocket.connect();
runResult = 1;
Log.d(TAG,"connect socket OK");
Log.d(TAG,"---------- run OK "+fRunOkTimes++ +" times");
}
catch (IOException exception)
{
//adapter.cancelDiscovery();
Log.d(TAG,"connect socket error",exception);
if ( fBtSocket != null )
{
try
{
fBtSocket.close();
}
catch (IOException exception1)
{
Log.d(TAG,"close socket error",exception1);
}
}
else
{
Log.d(TAG,"create socket NULL");
}
btDevice = null;
//update ui
Message msgRun = new Message();
msgRun.what = R.id.show_status;
msgRun.arg1 = SV_START_RUN;
msgRun.arg2 = runResult;
fMessHandler.sendMessage(msgRun);
}
//Note: You should always ensure that the device is not performing device discovery when you call connect().
//If discovery is in progress, then the connection attempt will be significantly slowed and is more likely to fail.
//adapter.cancelDiscovery();
}
private void close()
{
//update ui
Message msgShut = new Message();
msgShut.what = R.id.show_status;
msgShut.arg1 = SV_SHUT_DOWN;
fMessHandler.sendMessage(msgShut);
if ( fBtSocket != null )
{
Log.d(TAG,"close socket");
try
{
fBtSocket.close();
}
catch (IOException exception1)
{
Log.d(TAG,"close socket error",exception1);
}
fBtSocket = null;
}
}
private Handler fMessHandler = new Handler()
{
public void handleMessage(android.os.Message msg)
{
switch ( msg.what )
{
case R.id.show_status:
if ( msg.arg1 == SV_START_RUN )
{
if ( msg.arg2 == 1)
fShowView.setText("run OK");
else
fShowView.setText("run Failed");
fShowRunTimesView.setText("run "+fConnectTimes+", OK "+fRunOkTimes);
}
else if ( msg.arg1 == SV_SHUT_DOWN )
fShowView.setText("shut down ...");
break;
default:
break;
}
};
};
private long fConnectTimes;
private long fRunOkTimes;
private static final String TAG = "..MhubTestBtConnect";
private BluetoothSocket fBtSocket;
private ConnectRunnable fConnectRunnable;
private String fMac;
private boolean fRunning;
private TextView fBeginView;
private TextView fEndView;
private TextView fShowView;
private TextView fShowRunTimesView;
private EditText fInputMac;
private EditText fDisconnectGap;
private EditText fconnectGap;
private static final int SV_START_RUN = 1;
private static final int SV_SHUT_DOWN = 2;
private class ConnectRunnable implements Runnable
{
public ConnectRunnable()
{
fCancelled = false;
}
@Override
public void run()
{
if (Looper.myLooper() == null) {
Looper.prepare();
}
long afterConnectSleep = 500;
long afterCloseSleep = 1000;
try
{
afterCloseSleep = Integer.parseInt(fconnectGap.getText().toString());
afterConnectSleep = Integer.parseInt(fDisconnectGap.getText().toString());
}
catch(Exception exception)
{
afterConnectSleep = 500;
afterCloseSleep = 1000;
}
while ( fCancelled == false )
{
connect();
try
{
Thread.sleep(afterConnectSleep);
}
catch (InterruptedException exception)
{
exception.printStackTrace();
}
close();
try
{
Thread.sleep(afterCloseSleep);
}
catch (InterruptedException exception)
{
exception.printStackTrace();
}
}
}
public void cancel()
{
fCancelled = true;
}
private boolean fCancelled;
}
}
答案 0 :(得分：0)
这是我在一段时间后报告的关于蓝牙连接失败（确切地说是512）和内存泄漏导致“引用程序溢出”的错误。当我回到我的PC时，我会挖掘链接=）< / p>
链接：http://code.google.com/p/android/issues/detail?id=8676
解决方案：首先通过执行蓝牙发现来查看设备是否在范围内，以避免蓝牙连接失败。如果是，请取消发现并连接到它。