本人菜鸟 先用Ontouch方法 + while循环 + thread休眠写了一个每隔100ms 按钮连续发送数据的蓝牙APP
但是在使用过程中 配对 以及连接蓝牙之后 可以发送大概5分钟 APP就崩溃了
崩溃是指：蓝牙还和我的手机连着 但是整个APP 按按钮没反应 也发送不了数据
但是其他菜单栏可以点开 关掉APP重开,APP就打不开了 只能关掉蓝牙设备 然后再打开APP
之后学习了handler用法 试着写了一段 整个可以使用的过程是长了一点 但是最后还是会崩溃和没有反应
以下是代码 就是几个按钮和几个 Ontouch的监听器和一个Handler的复写
求大神指导一下怎么解决！定有重谢！
在MainActivty定义了一些变量 然后在OnCreate中设置了一些按钮和绑定监听器
之后 就检测了一下是否蓝牙打开 这一步应该没有问题
```public class MainActivity extends Activity {
private static final String TAG = "THINBTCLIENT";
private static final boolean D = true;
private BluetoothAdapter mBluetoothAdapter = null;
private BluetoothSocket btSocket = null;
private OutputStream outStream = null;
String message;
Button mButtonA;
Button mButtonB;
Button mButtonC;
Button mButtonD;
Button mButtonE;
Button mButtonF;
Button mButtonG;
Button mButtonH;
Button mButtonI;
Button mButtonJ;
Button mButtonK;
ImageView Image;
private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
private static String address = "20:15:08:05:81:54"; // <==要连接的蓝牙设备MAC地址
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mButtonA=(Button)findViewById(R.id.btnA);
mButtonA.setOnTouchListener(new SendMsgListener());
mButtonB=(Button)findViewById(R.id.btnB);
mButtonB.setOnTouchListener(new SendMsgListener());
mButtonC=(Button)findViewById(R.id.btnC);
mButtonC.setOnTouchListener(new SendMsgListener());
mButtonD=(Button)findViewById(R.id.btnD);
mButtonD.setOnTouchListener(new SendMsgListener());
mButtonE=(Button)findViewById(R.id.btnE);
mButtonE.setOnTouchListener(new SendMsgListener());
mButtonF=(Button)findViewById(R.id.btnF);
mButtonF.setOnTouchListener(new SendMsgListener());
mButtonG=(Button)findViewById(R.id.btnG);
mButtonG.setOnTouchListener(new SendMsgListener());
mButtonH=(Button)findViewById(R.id.btnH);
mButtonH.setOnClickListener(new UpDown());
mButtonI=(Button)findViewById(R.id.btnI);
mButtonI.setOnClickListener(new UpDown());
mButtonJ=(Button)findViewById(R.id.btnJ);
mButtonJ.setOnTouchListener(new SendMsgListener());
mButtonK=(Button)findViewById(R.id.btnK);
mButtonK.setOnTouchListener(new SendMsgListener());
if (D)
Log.e(TAG, "+++ ON CREATE +++");
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter == null) {
//Toast.makeText(this, "蓝牙设备不可用，请打开蓝牙！", Toast.LENGTH_LONG).show();
Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivity(intent);
//finish();
return;
}
if (!mBluetoothAdapter.isEnabled()) {
//Toast.makeText(this, "请打开蓝牙并重新运行程序！", Toast.LENGTH_LONG).show();
Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivity(intent);
//finish();
return;
}
if (D)
Log.e(TAG, "+++ DONE IN ON CREATE, GOT LOCAL BT ADAPTER +++");
}
直接连蓝牙的编程是在 OnResume中
public void onResume() {
super.onResume();
if (D) {
Log.e(TAG, "+ ON RESUME +");
Log.e(TAG, "+ ABOUT TO ATTEMPT CLIENT CONNECT +");
}
DisplayToast("正在尝试连接智能小车，请稍后····");
BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
try {
btSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
} catch (IOException e) {
DisplayToast("套接字创建失败！");
}
DisplayToast("成功连接智能小车！可以开始操控了~~~");
mBluetoothAdapter.cancelDiscovery();
try {
btSocket.connect();
DisplayToast("连接成功建立，数据连接打开！");
} catch (IOException e) {
try {
btSocket.close();
} catch (IOException e2) {
DisplayToast("连接没有建立，无法关闭套接字！");
}
}
// Create a data stream so we can talk to server.
if (D)
Log.e(TAG, "+ ABOUT TO SAY SOMETHING TO SERVER +");
}
**以下就是 监听器Ontouch复写的方法 想连续发送数据**
>
class SendMsgListener implements OnTouchListener{
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO 自动生成的方法存根
switch (v.getId()) {
case R.id.btnA:
message = "A";
break;
case R.id.btnB:
message = "B";
break;
case R.id.btnC:
message = "C";
break;
case R.id.btnD:
message = "D";
break;
case R.id.btnE:
message = "E";
break;
case R.id.btnF:
message = "F";
break;
case R.id.btnG:
message = "G";
break;
case R.id.btnH:
message = "H";
break;
case R.id.btnI:
message = "I";
break;
case R.id.btnJ:
message = "J";
break;
case R.id.btnK:
message = "K";
break;
default:
break;
}
if (event.getAction()==MotionEvent.ACTION_DOWN) {
handler.post(SendMsg);
}
else if (event.getAction() == MotionEvent.ACTION_UP) {
handler.removeCallbacks(SendMsg);
}
return false;
}
}
**以下是handler的方法 我觉得就是这个地方出问题了可是我并不知道怎么办
**
Handler handler = new Handler();
Runnable SendMsg = new Runnable() {
public void run() {
byte[] msgBuffer;
try {
outStream = btSocket.getOutputStream();
} catch (IOException e1) {
// TODO 自动生成的 catch 块
e1.printStackTrace();
}
msgBuffer = message.getBytes();
try {
outStream.write(msgBuffer);
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
handler.postDelayed(SendMsg, 100);
}
};
哪位大侠可以帮我一下啊！！！求求你们了！！！
