我看过这篇文章：
Displaying Bluetooth Serial Data
它没有任何解决方案。
我有同样的问题。我的代码没用，因为它似乎在读取，但它不会在我创建的TextView上显示它。
最后它突然碾碎了！
如何在TextView上阅读和显示我收到的数据？
这是我的代码：
Handler mHandler = new Handler(){
public void handleMessage(Message msg) {
Log.i(tag,"in handler");
super.handleMessage(msg);
switch(msg.what){
case SUCCESS_CONNECT:
//DO SOMETHING
ConnectedThread connectedThread = new ConnectedThread((BluetoothSocket)msg.obj);
Toast.makeText(getApplicationContext(), "Conectar", Toast.LENGTH_SHORT).show();
String s = "conectado con Éxito";
connectedThread.write(s.getBytes());
Log.i(tag,"connected");
byte[] iniciar = new byte[]{(byte)0x05};
// B01/n en Hexadecimal (Introducir para que Espirómetro envíe datos
//byte [] datos = new byte[] {(byte)0x42, (byte)0x30, (byte)0x31, (byte)0x0D};
byte [] datos = new byte[] {(byte)0x43, (byte)0x0D};
connectedThread.write(iniciar);
Log.i(tag, "waiting for commands");
Log.i(tag, datos.toString());
//Get Data
connectedThread.write (datos);
Log.i(tag,"Receiving Data");
connectedThread.run();
//connectedThread.cancel();
break;
case MESSAGE_READ:
byte[] readBuf = (byte[])msg.obj;
/*
String string = new String(readBuf);
Log.i(tag, string);
Toast.makeText(getApplicationContext(), string, Toast.LENGTH_SHORT).show();
*/
Log.i(tag,"He estado aquí");
String readMessage = new String(readBuf, 0, msg.arg1);
mTextView.setText(readMessage);
//added by AMJ in attempt to display variable in textview
break;
}
super.handleMessage(msg);
}
};
ConnectedThread类：
private class ConnectedThread extends Thread {
private final BluetoothSocket mmSocket;
private final InputStream mmInStream;
private final OutputStream mmOutStream;
public ConnectedThread(BluetoothSocket socket) {
mmSocket = socket;
InputStream tmpIn = null;
OutputStream tmpOut = null;
// Get the input and output streams, using temp objects because
// member streams are final
try {
tmpIn = socket.getInputStream();
tmpOut = socket.getOutputStream();
} catch (IOException e) { }
mmInStream = tmpIn;
mmOutStream = tmpOut;
}
public void run() {
/* byte[] buffer; // buffer store for the stream
int bytes; // bytes returned from read()
// Keep listening to the InputStream until an exception occurs
while (true) {
try {
buffer = new byte[1024];
// Read from the InputStream
bytes = mmInStream.read(buffer);
// Send the obtained bytes to the UI activity
mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer)
.sendToTarget();
} catch (IOException e) {
break;
}
}*/
Log.i(tag, "run success");
byte[] buffer = new byte[2];
int bytes; // bytes returned from read()
// Keep listening to the InputStream until an exception occurs
while (true) {
try {
// Read from the InputStream
bytes = mmInStream.read(buffer);
Log.i(tag, "buffer read OK");
// Send the obtained bytes to the UI activity
String str = new String(buffer);
mHandler.obtainMessage(MESSAGE_READ, bytes, -1, str).sendToTarget();
}catch (Exception e) {
Log.i(tag, "buffer read failed");
System.out.print("read error");
break;
}
}
}
/* Call this from the main activity to send data to the remote device */
public void write(byte[] bytes) {
try {
mmOutStream.write(bytes);
} catch (IOException e) { }
}
/* Call this from the main activity to shutdown the connection */
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) { }
}
}
}
谢谢！
（这是LOG）：
04-03 22:22:49.528: I/debugging(13221): construct
04-03 22:22:49.537: I/BluetoothSocket_MTK(13221): [JSR82] Bluetooth Socket Constructor
04-03 22:22:49.551: I/BluetoothSocket_MTK(13221): [JSR82] type=1 fd=-1 auth=true encrypt=true port=-1
04-03 22:22:49.556: D/dalvikvm(13221): create interp thread : stack size=32KB
04-03 22:22:49.556: D/dalvikvm(13221): create new thread
04-03 22:22:49.557: D/dalvikvm(13221): new thread created
04-03 22:22:49.557: D/dalvikvm(13221): update thread list
04-03 22:22:49.557: D/dalvikvm(13221): threadid=13: interp stack at 0x5e081000
04-03 22:22:49.557: D/dalvikvm(13221): threadid=13: created from interp
04-03 22:22:49.557: D/dalvikvm(13221): start new thread
04-03 22:22:49.557: I/debugging(13221): in click listener
04-03 22:22:49.560: D/dalvikvm(13221): threadid=13: notify debugger
04-03 22:22:49.562: D/dalvikvm(13221): threadid=13 (Thread-953): calling run()
04-03 22:22:49.572: I/debugging(13221): connect-run
04-03 22:22:49.573: I/BluetoothSocket_MTK(13221): [JSR82] connect: do SDP
04-03 22:22:56.408: I/BluetoothSocket_MTK(13221): [JSR82] SdpHelper::onRfcommChannelFound: channel=1
04-03 22:22:56.408: I/BluetoothSocket_MTK(13221): [JSR82] connect: do SDP done; mPort=1
04-03 22:22:56.959: I/debugging(13221): connect-succeded
04-03 22:22:56.959: D/dalvikvm(13221): threadid=13: exiting
04-03 22:22:56.961: I/debugging(13221): in handler
04-03 22:22:56.964: D/dalvikvm(13221): threadid=13: bye!
04-03 22:22:56.969: D/skia(13221): Flag is not 10
04-03 22:22:57.046: I/debugging(13520): connected
04-03 22:23:14.049: I/debugging(13520): waiting for commands
04-03 22:23:14.050: I/debugging(13520): [B@41d1c590
04-03 22:23:31.057: I/debugging(13520): Receiving Data
04-03 22:23:31.058: I/debugging(13520): run success
04-03 22:23:31.061: I/debugging(13520): buffer read OK
04-03 22:23:31.064: I/debugging(13520): buffer read OK
04-03 22:23:31.067: I/debugging(13520): buffer read OK
04-03 22:23:31.070: I/debugging(13520): buffer read OK
04-03 22:23:31.073: I/debugging(13520): buffer read OK
04-03 22:23:31.076: I/debugging(13520): buffer read OK
04-03 22:23:31.078: I/debugging(13520): buffer read OK
04-03 22:23:31.082: I/debugging(13520): buffer read OK
04-03 22:23:31.085: I/debugging(13520): buffer read OK
04-03 22:23:31.087: I/debugging(13520): buffer read OK
04-03 22:23:31.091: I/debugging(13520): buffer read OK
04-03 22:23:31.158: I/debugging(13520): buffer read OK
04-03 22:23:31.158: I/debugging(13520): buffer read OK
04-03 22:23:37.503: I/ViewRootImpl(13520): No key event currently.
04-03 22:23:37.510: I/ViewRootImpl(13520): No motion event currently.
04-03 22:23:37.510: I/ViewRootImpl(13520): The current processed event of VRI is none
04-03 22:23:37.510: I/ViewRootImpl(13520): notify IMS Dump
04-03 22:23:37.545: D/ANRAppManager(13520): MSG HISTORY IN MAIN THREAD:
04-03 22:23:37.545: D/ANRAppManager(13520): Current kernel time : 28387613ms
04-03 22:23:37.545: D/ANRAppManager(13520): === LONGER MSG HISTORY IN MAIN THREAD ===
04-03 22:23:37.545: D/MessageQueue(13520): Dump first 20 messages in Queue:
04-03 22:23:37.546: D/MessageQueue(13520): Dump Message in Queue (1): { what=0 when=-57s502ms callback=android.widget.Toast$TN$1@41cea490 target=Handler (android.os.Handler) {41cea5e8} }
04-03 22:23:37.546: D/MessageQueue(13520): Dump Message in Queue (2): { what=0 when=-55s499ms callback=android.widget.Toast$TN$2@41cea548 target=Handler (android.os.Handler) {41cea5e8} }
04-03 22:23:37.546: D/MessageQueue(13520): Dump Message in Queue (3): { what=1 when=-6s484ms arg1=2 arg2=-1 obj=?? target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.546: D/MessageQueue(13520): Dump Message in Queue (4): { what=1 when=-6s482ms arg1=2 arg2=-1 obj= target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.547: D/MessageQueue(13520): Dump Message in Queue (5): { what=1 when=-6s480ms arg1=2 arg2=-1 obj= target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.547: D/MessageQueue(13520): Dump Message in Queue (6): { what=1 when=-6s476ms arg1=2 arg2=-1 obj=0 target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.547: D/MessageQueue(13520): Dump Message in Queue (7): { what=1 when=-6s473ms arg1=2 arg2=-1 obj=18 target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.547: D/MessageQueue(13520): Dump Message in Queue (8): { what=1 when=-6s471ms arg1=2 arg2=-1 obj=36 target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.547: D/MessageQueue(13520): Dump Message in Queue (9): { what=1 when=-6s468ms arg1=2 arg2=-1 obj=00 target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.548: D/MessageQueue(13520): Dump Message in Queue (10): { what=1 when=-6s466ms arg1=2 arg2=-1 obj=NE target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.548: D/MessageQueue(13520): Dump Message in Queue (11): { what=1 when=-6s463ms arg1=2 arg2=-1 obj=WD target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.548: D/MessageQueue(13520): Dump Message in Queue (12): { what=1 when=-6s460ms arg1=2 arg2=-1 obj=EV target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.548: D/MessageQueue(13520): Dump Message in Queue (13): { what=1 when=-6s457ms arg1=2 arg2=-1 obj=IC target=Handler (net.londatiga.android.bluetooth.DeviceListActivity$1) {418e92f8} }
04-03 22:23:37.548: D/MessageQueue(13520): Dump Message in Queue (14): { what=1 when=-6s454ms arg1=2 arg2=-1 obj=E
target = Handler（net.londatiga.android.bluetooth.DeviceListActivity $ 1）{418e92f8}} 04-03 22：23：37.549：D / MessageQueue（13520）：队列中的转储消息（15）：{what = 1 when = -6s449ms arg1 = 2 arg2 = -1 obj = 04-03 22：23：37.549：D / MessageQueue（13520）：0 target = Handler（net.londatiga.android.bluetooth.DeviceListActivity $ 1）{418e92f8}} 04-03 22：23：37.549：D / MessageQueue（13520）：队列中的转储消息（16）：{what = 1 when = -6s447ms arg1 = 2 arg2 = -1 obj = 14 target = Handler（net.londatiga。 android.bluetooth.DeviceListActivity $ 1）{418e92f8}} 04-03 22：23：37.549：D / MessageQueue（13520）：队列中的转储消息（17）：{what = 1 when = -6s446ms arg1 = 2 arg2 = -1 obj = 79 target = Handler（net.londatiga。 android.bluetooth.DeviceListActivity $ 1）{418e92f8}} 04-03 22：23：37.549：D / MessageQueue（13520）：队列中的转储消息（18）：{what = 1 when = -6s445ms arg1 = 2 arg2 = -1 obj = 00 target = Handler（net.londatiga。 android.bluetooth.DeviceListActivity $ 1）{418e92f8}} 04-03 22：23：37.550：D / MessageQueue（13520）：队列中的转储消息（19）：{what = 1 when = -6s445ms arg1 = 2 arg2 = -1 obj =：4 target = Handler（net.londatiga） .android.bluetooth.DeviceListActivity $ 1）{418e92f8}} 04-03 22：23：37.550：D / MessageQueue（13520）：队列中的转储消息（20）：{what = 1 when = -6s445ms arg1 = 2 arg2 = -1 obj = 23 target = Handler（net.londatiga。 android.bluetooth.DeviceListActivity $ 1）{418e92f8}} 04-03 22：23：37.554：D / MessageQueue（13520）：总消息数：92 04-03 22：23：37.608：I / dalvikvm（13520）：threadid = 3：对信号3作出反应 04-03 22：23：37.609：D / dalvikvm（13520）：转储本机堆栈：main 04-03 22：23：37.609：D / dalvikvm（13520）：放松回溯 04-03 22：23：37.621：D / dalvikvm（13520）：获得原生符号 04-03 22：23：37.622：D / dalvikvm（13520）：格式回溯线 04-03 22：23：37.622：D / dalvikvm（13520）：完成原生 04-03 22：23：37.625：D / dalvikvm（13520）：转储本机堆栈：Binder_2 04-03 22：23：37.626：D / dalvikvm（13520）：放松回溯 04-03 22：23：37.628：D / dalvikvm（13520）：获得原生符号 04-03 22：23：37.628：D / dalvikvm（13520）：格式回溯线 04-03 22：23：37.628：D / dalvikvm（13520）：完成原生 04-03 22：23：37.629：D / dalvikvm（13520）：转储本机堆栈：Binder_1 04-03 22：23：37.629：D / dalvikvm（13520）：放松回溯 04-03 22：23：37.631：D / dalvikvm（13520）：获得原生符号 04-03 22：23：37.632：D / dalvikvm（13520）：格式回溯线 04-03 22：23：37.632：D / dalvikvm（13520）：完成原生 04-03 22：23：37.633：D / dalvikvm（13520）：转储本机堆栈：编译器 04-03 22：23：37.633：D / dalvikvm（13520）：放松回溯 04-03 22：23：37.634：D / dalvikvm（13520）：获得原生符号 04-03 22：23：37.635：D / dalvikvm（13520）：格式回溯线 04-03 22：23：37.635：D / dalvikvm（13520）：完成原生 04-03 22：23：37.635：D / dalvikvm（13520）：转储本机堆栈：JDWP 04-03 22：23：37.635：D / dalvikvm（13520）：放松回溯 04-03 22：23：37.636：D / dalvikvm（13520）：获得原生符号 04-03 22：23：37.637：D / dalvikvm（13520）：格式回溯线 04-03 22：23：37.637：D / dalvikvm（13520）：完成原生 04-03 22：23：37.637：D / dalvikvm（13520）：转储本机堆栈：GC 04-03 22：23：37.637：D / dalvikvm（13520）：放松回溯 04-03 22：23：37.639：D / dalvikvm（13520）：获得原生符号 04-03 22：23：37.639：D / dalvikvm（13520）：格式回溯线 04-03 22：23：37.639：D / dalvikvm（13520）：ghttps：//stackoverflow.com/questions/21922000/displaying-bluetooth-serial-dataet native done 04-03 22：23：37.639：D / dalvikvm（13520）：准备'/data/anr/traces.txt'的堆栈跟踪 04-03 22：23：37.639：I / dalvikvm（13520）：将堆栈跟踪写入'/data/anr/traces.txt'