我有一个 Zephyr HxM 设备，它将测量值发送到 MainActivityZephyr 类，测量值被正确接收并打印在 logcat 中。当接收到测量值时，它应该在方法测量中进行分析，并且editText应该随着接收到的每个测量值的值不断变化。
发生的情况是，一旦 Activity 与 HxM 设备连接，它就会完全冻结，editText 不会改变，但接收到的值会正常打印在 log cat 中，代码正常执行，当条件满足时，用户是正常转移到 RedAlert 活动。
关于为什么会发生这种情况以及如何解决它的任何帮助将不胜感激！提前致谢。
下面是 MainActivityZephyr 类（为了缩短目的，我删除了 locationlistener 的一些方法）：
public class MainActivityZephyr extends Activity implements LocationListener{
/** Called when the activity is first created. */
BluetoothAdapter adapter = null;
BTClient _bt;
ZephyrProtocol _protocol;
NewConnectedListener _NConnListener;
private final int HEART_RATE = 0x100;
private final int INSTANT_SPEED = 0x101;
MediaPlayer mp;
EditText meas;
String m;
Button back;
String r[] ;
String y[] ;
Runnable Refresh;
String hour1;
int pm_am;
int min;
int sec;
int hour;
Button a;
TextView measure;
String month;
String dayOfweek;
String amPm;
String date;
int methodTimeHour;
int methodTimeMin;
static ArrayList<GeoPoint> points =new ArrayList<GeoPoint>();
private LocationManager locManager;
static String HeartRatetext;
final Handler handler = new Handler();
@Override
public void onCreate(Bundle savedInstanceState) {
unmute();
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/*Sending a message to android that we are going to initiate a pairing request*/
IntentFilter filter = new IntentFilter("android.bluetooth.device.action.PAIRING_REQUEST");
/*Registering a new BTBroadcast receiver from the Main Activity context with pairing request event*/
this.getApplicationContext().registerReceiver(new BTBroadcastReceiver(), filter);
// Registering the BTBondReceiver in the application that the status of the receiver has changed to Paired
IntentFilter filter2 = new IntentFilter("android.bluetooth.device.action.BOND_STATE_CHANGED");
this.getApplicationContext().registerReceiver(new BTBondReceiver(), filter2);
//Obtaining the handle to act on the CONNECT button
TextView tv = (TextView) findViewById(R.id.labelStatusMsg);
String ErrorText = "Not Connected to HxM ! !";
tv.setText(ErrorText);
a = (Button) findViewById(R.id.button1);
a.setVisibility(View.GONE);
locManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0,
0, this);
Button btnConnect = (Button) findViewById(R.id.ButtonConnect);
if (btnConnect != null)
{
btnConnect.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
String BhMacID = "00:07:80:9D:8A:E8";
//String BhMacID = "00:07:80:88:F6:BF";
adapter = BluetoothAdapter.getDefaultAdapter();
Set<BluetoothDevice> pairedDevices = adapter.getBondedDevices();
if (pairedDevices.size() > 0)
{
for (BluetoothDevice device : pairedDevices)
{
if (device.getName().startsWith("HXM"))
{
BluetoothDevice btDevice = device;
BhMacID = btDevice.getAddress();
break;
}
}
}
//BhMacID = btDevice.getAddress();
BluetoothDevice Device = adapter.getRemoteDevice(BhMacID);
String DeviceName = Device.getName();
_bt = new BTClient(adapter, BhMacID);
_NConnListener = new NewConnectedListener(Newhandler,Newhandler);
_bt.addConnectedEventListener(_NConnListener);
TextView tv1 = (EditText)findViewById(R.id.labelHeartRate);
tv1.setText("000");
tv1 = (EditText)findViewById(R.id.labelInstantSpeed);
tv1.setText("0.0");
if(_bt.IsConnected())
{
_bt.start();
TextView tv = (TextView) findViewById(R.id.labelStatusMsg);
String ErrorText = "Connected to HxM "+DeviceName;
tv.setText(ErrorText);
//Reset all the values to 0s
}
else
{
TextView tv = (TextView) findViewById(R.id.labelStatusMsg);
String ErrorText = "Unable to Connect !";
tv.setText(ErrorText);
}
}
});
}
/*Obtaining the handle to act on the DISCONNECT button*/
Button btnDisconnect = (Button) findViewById(R.id.ButtonDisconnect);
if (btnDisconnect != null)
{
btnDisconnect.setOnClickListener(new OnClickListener() {
@Override
/*Functionality to act if the button DISCONNECT is touched*/
public void onClick(View v) {
// TODO Auto-generated method stub
/*Reset the global variables*/
TextView tv = (TextView) findViewById(R.id.labelStatusMsg);
String ErrorText = "Disconnected from HxM!";
tv.setText(ErrorText);
/*This disconnects listener from acting on received messages*/
_bt.removeConnectedEventListener(_NConnListener);
/*Close the communication with the device & throw an exception if failure*/
_bt.Close();
}
});
}
}
private class BTBondReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Bundle b = intent.getExtras();
BluetoothDevice device = adapter.getRemoteDevice(b.get("android.bluetooth.device.extra.DEVICE").toString());
Log.d("Bond state", "BOND_STATED = " + device.getBondState());
}
}
private class BTBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Log.d("BTIntent", intent.getAction());
Bundle b = intent.getExtras();
Log.d("BTIntent", b.get("android.bluetooth.device.extra.DEVICE").toString());
Log.d("BTIntent", b.get("android.bluetooth.device.extra.PAIRING_VARIANT").toString());
try {
BluetoothDevice device = adapter.getRemoteDevice(b.get("android.bluetooth.device.extra.DEVICE").toString());
Method m = BluetoothDevice.class.getMethod("convertPinToBytes", new Class[] {String.class} );
byte[] pin = (byte[])m.invoke(device, "1234");
m = device.getClass().getMethod("setPin", new Class [] {pin.getClass()});
Object result = m.invoke(device, pin);
Log.d("BTTest", result.toString());
} catch (SecurityException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (NoSuchMethodException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
final Handler Newhandler = new Handler(){
public void handleMessage(Message msg)
{
EditText tv2;
EditText tv3;
switch (msg.what)
{
case HEART_RATE:
HeartRatetext = msg.getData().getString("HeartRate");
tv2 = (EditText)findViewById(R.id.labelHeartRate);
System.out.println("Heart Rate Info is "+ HeartRatetext);
//if (tv != null)
//{
tv2.setText(HeartRatetext);
//Refresh = new Runnable() {
//public void run() {
//handler.postDelayed(Refresh, 1000*100);
measurement(HeartRatetext, methodTimeHour,methodTimeMin);
//}
//};
//handler.post(Refresh);
//}
break;
case INSTANT_SPEED:
String InstantSpeedtext = msg.getData().getString("InstantSpeed");
tv3 = (EditText)findViewById(R.id.labelInstantSpeed);
if (tv3 != null)tv3.setText(InstantSpeedtext);
break;
}
}
};
public void measurement(String mn, int methodHour, int methodMin){
r=UserFunctions.red.replace("[", "").replace("\"", "").replace("]", "").split("to");
y=UserFunctions.yell.replace("[", "").replace("\"", "").replace("]", "").split("to");
Calendar c = Calendar.getInstance();
/*hour1 = c.get(Calendar.HOUR)+"";
pm_am = c.get(Calendar.AM_PM);*/
hour = c.get(Calendar.HOUR);
min = c.get(Calendar.MINUTE);
sec = c.get(Calendar.SECOND);
// if ((methodHour ==0 && methodMin==0) || (methodMin- min> 2)){
// Do something[
if(!(mn.equals("000"))){
UserFunctions userFunction = new UserFunctions();
Log.d("foneeeeeeeeeeeeeeeee",userFunction.GetFoneNo(userFunction.drID).toString());
String no =userFunction.fone1;
String no1 =userFunction.fone2;
//String m=meas.getText().toString();
//int mm= Integer.parseInt(m);
int mm=Integer.parseInt(mn);
switch(pm_am){
case 0: amPm = "AM";
case 1: amPm = "PM";
}
if(mm>Integer.parseInt(r[0])&&mm<Integer.parseInt(r[1])){
//Newhandler.sendEmptyMessageDelayed(0,0000);
_bt.removeConnectedEventListener(_NConnListener);
_bt.Close();
Newhandler.removeCallbacks(Refresh);
Intent dashboard = new Intent(getApplicationContext(), RedAlert.class);
// Close all views before launching Dashboard
dashboard.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(dashboard);
// Close Registration Screen
finish();
}
if(isOnline()){
userFunction.meas(mn,userFunction.drID,date,amPm);
}
else{
///store in mobiles database
}
}
// }
}
}
isOnline() 方法：
public boolean isOnline() {
ConnectivityManager cm =
(ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
if (netInfo != null && netInfo.isConnectedOrConnecting()) {
return true;
}
return false;
}