我使用connectthread方法在android中创建了一个用于从蓝牙进行数据传输的应用程序，但遗憾的是它不起作用。当选择列表中的蓝牙设备时，应用程序不做任何工作。以下是我的主要源代码。请指导我哪里出错。
public class MainActivity extends AppCompatActivity {
private OutputStream ostream;
private InputStream istream;
public static final int RECIEVE_MESSAGE = 2;
ListView listViewPaired;
ListView listViewDetected;
ArrayList<String> arrayListpaired;
Button buttonSearch, buttonOn, buttonDesc, buttonOff;
ArrayAdapter<String> adapter, detectedAdapter, mNewDevicesArrayAdapter;
static HandleSeacrh handleSeacrh;
BluetoothDevice bdDevice;
BluetoothClass bdClass;
ArrayList<BluetoothDevice> arrayListPairedBluetoothDevices;
private ButtonClicked clicked;
ListItemClickedonPaired listItemClickedonPaired;
BluetoothAdapter bluetoothAdapter = null;
ArrayList<BluetoothDevice> arrayListBluetoothDevices = null;
ListItemClicked listItemClicked;
UUID applicationUUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//ConnectedThread mConnectedThread;
listViewDetected = (ListView) findViewById(R.id.listViewDetected);
listViewPaired = (ListView) findViewById(R.id.listViewPaired);
buttonSearch = (Button) findViewById(R.id.buttonSearch);
buttonOn = (Button) findViewById(R.id.buttonOn);
buttonDesc = (Button) findViewById(R.id.buttonDesc);
buttonOff = (Button) findViewById(R.id.buttonOff);
arrayListpaired = new ArrayList<String>();
bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
clicked = new ButtonClicked();
handleSeacrh = new HandleSeacrh();
arrayListPairedBluetoothDevices = new ArrayList<BluetoothDevice>();
/*
* the above declaration is just for getting the paired bluetooth devices;
* this helps in the removing the bond between paired devices.
*/
listItemClickedonPaired = new ListItemClickedonPaired();
arrayListBluetoothDevices = new ArrayList<BluetoothDevice>();
adapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1, arrayListpaired);
detectedAdapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_single_choice);
mNewDevicesArrayAdapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_single_choice);
listViewDetected.setAdapter(detectedAdapter);
listItemClicked = new ListItemClicked();
detectedAdapter.notifyDataSetChanged();
listViewPaired.setAdapter(adapter);
}
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
getPairedDevices();
buttonOn.setOnClickListener(clicked);
buttonSearch.setOnClickListener(clicked);
buttonDesc.setOnClickListener(clicked);
buttonOff.setOnClickListener(clicked);
listViewDetected.setOnItemClickListener(listItemClicked);
listViewPaired.setOnItemClickListener(listItemClickedonPaired);
}
private void getPairedDevices() {
Set<BluetoothDevice> pairedDevice = bluetoothAdapter.getBondedDevices();
if (pairedDevice.size() > 0) {
for (BluetoothDevice device : pairedDevice) {
arrayListpaired.add(device.getName() + "\n" + device.getAddress());
arrayListPairedBluetoothDevices.add(device);
}
}
adapter.notifyDataSetChanged();
}
class ListItemClicked implements AdapterView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// TODO Auto-generated method stub
bdDevice = arrayListBluetoothDevices.get(position);
//bdClass = arrayListBluetoothDevices.get(position);
Log.i("Log", "The dvice : " + bdDevice.toString());
/*
* here below we can do pairing without calling the callthread(), we can directly call the
* connect(). but for the safer side we must usethe threading object.
*/
//callThread();
//connect(bdDevice);
Boolean isBonded = false;
try {
isBonded = createBond(bdDevice);
if (isBonded) {
//arrayListpaired.add(bdDevice.getName()+"\n"+bdDevice.getAddress());
//adapter.notifyDataSetChanged();
Log.i("Log", "Paired");
}
} catch (Exception e) {
e.printStackTrace();
}//connect(bdDevice);
Log.i("Log", "The bond is created: " + isBonded);
// btSend();
try
{
BluetoothSocket socket=bdDevice.createRfcommSocketToServiceRecord(applicationUUID);
socket.connect();
ConnectedThread mConnectedThread = new ConnectedThread(socket);
mConnectedThread.start();
mConnectedThread.write("Hi");
mConnectedThread.run();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/* public void btSend()
{
String path = Environment.getExternalStorageDirectory()+"/hi.txt";
File file = new File(path);
BluetoothSocket socket= null;
try {
socket = bdDevice.createRfcommSocketToServiceRecord(applicationUUID);
socket.connect();
} catch (IOException e) {
e.printStackTrace();
}
Intent intent = new Intent();
intent.setAction(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));
startActivity(intent);
/* ContentValues values = new ContentValues();
values.put(BluetoothShare.URI, path);
values.put(BluetoothShare.DESTINATION,bdDevice.getAddress());
values.put(BluetoothShare.DIRECTION, BluetoothShare.DIRECTION_OUTBOUND);
Long ts = System.currentTimeMillis();
values.put(BluetoothShare.TIMESTAMP, ts);
getContentResolver().insert(BluetoothShare.CONTENT_URI,values);}*/
class ListItemClickedonPaired implements AdapterView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
bdDevice = arrayListPairedBluetoothDevices.get(position);
try {
Boolean removeBond = removeBond(bdDevice);
if (removeBond) {
arrayListpaired.remove(position);
adapter.notifyDataSetChanged();
}
Log.i("Log", "Removed" + removeBond);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/*private void callThread() {
new Thread(){
public void run() {
Boolean isBonded = false;
try {
isBonded = createBond(bdDevice);
if(isBonded)
{
arrayListpaired.add(bdDevice.getName()+"\n"+bdDevice.getAddress());
adapter.notifyDataSetChanged();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}//connect(bdDevice);
Log.i("Log", "The bond is created: "+isBonded);
}
}.start();
}*/
private Boolean connect(BluetoothDevice bdDevice) {
Boolean bool = false;
try {
Log.i("Log", "service method is called ");
Class cl = Class.forName("android.bluetooth.BluetoothDevice");
Class[] par = {};
Method method = cl.getMethod("createBond", par);
Object[] args = {};
bool = (Boolean) method.invoke(bdDevice);//, args);// this invoke creates the detected devices paired.
//Log.i("Log", "This is: "+bool.booleanValue());
//Log.i("Log", "devicesss: "+bdDevice.getName());
} catch (Exception e) {
Log.i("Log", "Inside catch of serviceFromDevice Method");
e.printStackTrace();
}
return bool.booleanValue();
}
;
public boolean removeBond(BluetoothDevice btDevice)
throws Exception {
Class btClass = Class.forName("android.bluetooth.BluetoothDevice");
Method removeBond = btClass.getMethod("removeBond");
Boolean returnValue = (Boolean)removeBond.invoke(btDevice);
return returnValue.booleanValue();
}
public boolean createBond(BluetoothDevice btDevice)
throws Exception {
Class class1 = Class.forName("android.bluetooth.BluetoothDevice");
Method createBondMethod = class1.getMethod("createBond");
Boolean returnValue = (Boolean) createBondMethod.invoke(btDevice);
return returnValue.booleanValue();
}
class ButtonClicked implements View.OnClickListener {
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.buttonOn:
onBluetooth();
break;
case R.id.buttonSearch:
arrayListBluetoothDevices.clear();
startSearching();
break;
case R.id.buttonDesc:
makeDiscoverable();
break;
case R.id.buttonOff:
offBluetooth();
break;
default:
break;
}
}
}
private BroadcastReceiver myReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Message msg = Message.obtain();
String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
Toast.makeText(context, "ACTION_FOUND", Toast.LENGTH_SHORT).show();
Toast.makeText(getApplicationContext(), "Searching for devices", Toast.LENGTH_LONG).show();
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
try {
//device.getClass().getMethod("setPairingConfirmation", boolean.class).invoke(device, true);
//device.getClass().getMethod("cancelPairingUserInput", boolean.class).invoke(device);
} catch (Exception e) {
Log.i("Log", "Inside the exception: ");
e.printStackTrace();
}
if (arrayListBluetoothDevices.size() < 1) // this checks if the size of bluetooth device is 0,then add the
{ // device to the arraylist.
detectedAdapter.add(device.getName() + "\n" + device.getAddress());
arrayListBluetoothDevices.add(device);
detectedAdapter.notifyDataSetChanged();
} else {
boolean flag = true; // flag to indicate that particular device is already in the arlist or not
for (int i = 0; i < arrayListBluetoothDevices.size(); i++) {
if (device.getAddress().equals(arrayListBluetoothDevices.get(i).getAddress())) {
flag = false;
}
}
if (flag == true) {
detectedAdapter.add(device.getName() + "\n" + device.getAddress());
arrayListBluetoothDevices.add(device);
detectedAdapter.notifyDataSetChanged();
}
}
if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
mNewDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
arrayListBluetoothDevices.add(device);
}
//ParcelUuid[] uuids= device.getUuids();
/* try
{
BluetoothSocket socket=device.createRfcommSocketToServiceRecord(applicationUUID);
socket.connect();
ConnectedThread mConnectedThread = new ConnectedThread(socket);
mConnectedThread.start();
mConnectedThread.write("Hi");
} catch (IOException e) {
e.printStackTrace();
}
*/
}
}
};
private void startSearching() {
Log.i("Log", "in the start searching method");
IntentFilter intentFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
MainActivity.this.registerReceiver(myReceiver, intentFilter);
bluetoothAdapter.startDiscovery();
}
private void onBluetooth() {
if (!bluetoothAdapter.isEnabled()) {
bluetoothAdapter.enable();
Log.i("Log", "Bluetooth is Enabled");
Toast.makeText(getApplicationContext(), "Turned on", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(), "Already on", Toast.LENGTH_LONG).show();
}
}
private void offBluetooth() {
if (bluetoothAdapter.isEnabled()) {
bluetoothAdapter.disable();
Toast.makeText(getApplicationContext(), "Turned off", Toast.LENGTH_LONG).show();
}
}
private class ConnectedThread extends Thread {
private final InputStream mmInStream;
private final OutputStream mmOutStream;
public ConnectedThread(BluetoothSocket 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 = new byte[256]; // buffer store for the stream
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); // Get number of bytes and message in "buffer"
h.obtainMessage(RECIEVE_MESSAGE, bytes, -1, buffer).sendToTarget(); // Send to message queue Handler
} catch (IOException e) {
break;
}
}
}
//Call this from the main activity to send data to the remote device
public void write(String message) {
Log.i("TAG", "...Data to send: " + message + "...");
byte[] msgBuffer = message.getBytes();
try {
mmOutStream.write(msgBuffer);
} catch (IOException e) {
Log.i("TAG", "...Error data send: " + e.getMessage() + "...");
}
}
}
private void makeDiscoverable() {
Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300);
startActivity(discoverableIntent);
Log.i("Log", "Discoverable ");
}
class HandleSeacrh extends Handler
{
@Override
public void handleMessage(Message msg) {
switch (msg.what)
{
case 111:
break;
default:
break;
}
}
}
Handler h =new Handler()
{
public void handleMeassage(Message msg)
{
byte[] writeBuf = (byte[]) msg.obj;
int begin = (int)msg.arg1;
int end = (int)msg.arg2;
switch(msg.what) {
case 1:
String writeMessage = new String(writeBuf);
writeMessage = writeMessage.substring(begin, end);
break;
}
}
};
}
这是Log：
11-20 16:07:58.125 222-660/? D/audio_hw_primary: select_devices: done
11-20 16:07:58.135 12248-12248/com.example.toshiba.bluetoothdemo D/AndroidRuntime: Shutting down VM
11-20 16:07:58.135 12248-12248/com.example.toshiba.bluetoothdemo W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x41648d58)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: FATAL EXCEPTION: main
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: Process: com.example.toshiba.bluetoothdemo, PID: 12248
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: java.lang.IndexOutOfBoundsException: Invalid index 3, size is 3
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:255)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at java.util.ArrayList.get(ArrayList.java:308)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at com.example.toshiba.bluetoothdemo.MainActivity$ListItemClicked.onItemClick(MainActivity.java:125)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at android.widget.AdapterView.performItemClick(AdapterView.java:299)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at android.widget.AbsListView.performItemClick(AbsListView.java:1115)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at android.widget.AbsListView$PerformClick.run(AbsListView.java:2928)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at android.widget.AbsListView$3.run(AbsListView.java:3691)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:733)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:95)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at android.os.Looper.loop(Looper.java:136)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5113)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:515)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)
11-20 16:07:58.145 12248-12248/com.example.toshiba.bluetoothdemo E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)
11-20 16:07:58.155 1670-2285/? I/KLO_Stability: [am_crash][1448015878]:[12248,0,com.example.toshiba.bluetoothdemo,13155910,java.lang.IndexOutOfBoundsException,Invalid index 3, size is 3,ArrayList.java,255]
11-20 16:07:58.165 1195-1390/? I/WhetstoneService: Receive am_crash event for pid: 12248
11-20 16:07:58.165 1195-1390/? W/KloServer: Aborted broadcast does not supprt for: com.example.toshiba.bluetoothdemo
11-20 16:07:58.185 942-1450/? W/ActivityManager: Force finishing activity com.example.toshiba.bluetoothdemo/.MainActivity
11-20 16:07:58.195 1670-2285/? I/libmc: received event[index:0,mask:0x80,name:data_app_crash@1448015878194.txt]
11-20 16:07:58.195 1670-2285/? I/KLO_Stability: get wanted event[mask:128, name:data_app_crash@1448015878194.txt] from the watchset
11-20 16:07:58.195 1670-2285/? I/KLO_Stability: start gathering logcat log...
11-20 16:07:58.195 1670-2285/? I/KLO_Stability: gathering logcat log done
11-20 16:07:58.315 1195-1390/? I/libmc: group sys_app_bg memory.limit_in_bytes is set to -1
11-20 16:07:58.315 1195-1390/? I/libmc: group sys_app_bg memory.soft_limit_in_bytes is set to -1
11-20 16:07:58.315 942-956/? I/ActivityManager: Start proc com.qualcomm.logkit for broadcast com.qualcomm.logkit/.autotrigger.AutotriggerReceiver: pid=24531 uid=10045 gids={50045, 1028, 1015, 1023, 1007, 3003, 3002}
11-20 16:07:58.455 1195-1390/? I/libmc: task pid 24531 have been add to group sys_app_bg.
11-20 16:07:58.455 1195-1390/? I/libmc: [sys_app_bg]cgroup_add_tasks max single write time: 133ms
11-20 16:07:58.455 1195-1390/? I/libmc: [sys_app_bg]cgroup_add_tasks total time consume: 133ms
11-20 16:07:58.455 1195-24535/? E/libmc: set memory.limit_in_bytes[-2] failed: Invalid argument
11-20 16:07:58.475 1222-1929/? I/RenderThread: RenderThread resumed
11-20 16:07:58.475 1222-1929/? I/RenderThread: All controllers paused.
11-20 16:07:58.475 1222-1929/? I/RenderThread: RenderThread paused, waiting for signal
11-20 16:07:58.485 942-956/? V/LocationPolicy: onForegroundActivitiesChanged
11-20 16:07:58.495 24531-24531/? D/ActivityThread: handleBindApplication:com.qualcomm.logkit
11-20 16:07:58.505 24531-24531/? D/ActivityThread: setTargetHeapUtilization:0.75
11-20 16:07:58.505 24531-24531/? D/ActivityThread: setTargetHeapMinFree:2097152
11-20 16:07:58.585 24531-24531/? D/MainApp: [onCreate]
11-20 16:07:58.585 24531-24531/? D/MainApp: [init]
11-20 16:07:58.585 24531-24531/? D/UtilsSettings: [updateCurProfilePreference]
11-20 16:07:58.585 24531-24549/? D/ProfileDBManager: [openDataBase]
11-20 16:07:58.585 24531-24549/? D/ProfileDBManager: [access$000] DataBaseManagementHelper
11-20 16:07:58.595 24531-24531/? D/MainApp: [getExternalAndInternalStoragePath] external sdcard-> /storage/sdcard1
11-20 16:07:58.595 24531-24531/? D/AutotriggerReceiver: [onReceive] Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 cmp=com.qualcomm.logkit/.autotrigger.AutotriggerReceiver (has extras) }
11-20 16:07:58.595 24531-24531/? D/AutotriggerReceiver: [onReceive] android.intent.action.DROPBOX_ENTRY_ADDED: data_app_crash
11-20 16:07:58.615 24531-24549/? D/ProfileDBManager: [fetchProfile]
11-20 16:07:58.625 24531-24549/? D/ProfileDBManager: [closeDataBase]
11-20 16:07:58.655 942-1282/? I/ActivityManager: Killing 13578:com.miui.cloudservice/u0a30 (adj 15): empty for 693s
11-20 16:07:58.695 942-956/? W/ActivityManager: Activity pause timeout for ActivityRecord{43038228 u0 com.example.toshiba.bluetoothdemo/.MainActivity t6 f}
11-20 16:07:58.705 1369-1578/? D/PowerKeeperEventLogManager: notifyForegroundCompomentChanged ComponentInfo{com.miui.home/com.miui.home.launcher.Launcher}
11-20 16:07:58.705 1222-1929/? I/RenderThread: RenderThread resumed
11-20 16:07:58.705 1222-1929/? I/RenderThread: All controllers paused.
11-20 16:07:58.705 1222-1929/? I/RenderThread: RenderThread paused, waiting for signal
11-20 16:07:58.725 942-956/? I/Timeline: Timeline: App_transition_ready time:2197056
11-20 16:07:58.735 1222-1222/? I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@42472848 time:2197064
11-20 16:07:58.915 942-955/? I/Timeline: Timeline: Activity_windows_visible id: ActivityRecord{42e08e00 u0 com.miui.home/.launcher.Launcher t1} time:2197241
11-20 16:07:58.925 942-955/? I/Timeline: Timeline: App_transition_stopped time:2197252
11-20 16:07:58.925 942-956/? V/LocationPolicy: onForegroundActivitiesChanged
11-20 16:07:59.125 222-222/? I/AudioFlinger: setAppName(), name=[system_server], active=[0]
11-20 16:08:01.275 222-969/? D/audio_hw_primary: out_standby: enter: stream (0xb81cbea8) usecase(1: low-latency-playback)
11-20 16:08:01.445 222-969/? I/listen_hal_loader: audio_extn_listen_update_stream_status(): uc_id 1 of type 0 for Event 2, with Raise=0
11-20 16:08:01.445 222-969/? D/hardware_info: hw_info_append_hw_type : device_name = speaker
11-20 16:08:01.465 222-969/? I/listen_hal_loader: audio_extn_listen_update_device_status(): device 0x2 of type 0 for Event 0, with Raise=0
11-20 16:08:01.705 1195-1195/? W/WhetstoneService: do not trim { PackageName :com.example.toshiba.bluetoothdemo Pid: 12248 Uid: 0 Start by: activity Score:50 Old score:50 state:0 mBackgroundTimeInMillis:1448015878198 WakelockCount:0 wakelogsize:0 ActivityDestroied:false Activity size: 0 PackageInfo:{WhetstonePackageInfo#PacakgeName:com.example.toshiba.bluetoothdemoFlag:5312 [,TRIMHEAPS,SOFT_RESET,ZRAM,FLAG_DEAL_SCHEDULE] Type:0[] } tasknum:13}
11-20 16:08:02.205 12328-24074/? I/BluetoothAdapterProperties: Callback:discoveryStateChangeCallback with state:0 disc: true
11-20 16:08:02.205 12024-12024/? V/BluetoothDiscoveryReceiver: Received: android.bluetooth.adapter.action.DISCOVERY_FINISHED
11-20 16:08:02.315 24609-24609/? W/: [ColorAdjust] gammamode=2, cemode=10
11-20 16:08:02.315 24609-24609/? W/: [ColorAdjust] temp_gammavalue=2, temp_cevalue=10
11-20 16:08:02.315 24609-24609/? W/: [ColorAdjust] Don't setGamma!
11-20 16:08:02.315 24609-24609/? W/: [ColorAdjust] Don't setCe!
11-20 16:08:02.315 24609-24609/? W/: [ColorAdjust] Set temp_prefer temp_ce!
答案 0 :(得分：0)
这可能是问题
您已将RECIEVE_MESSAGE值设置为2
public static final int RECIEVE_MESSAGE = 2;
然后当你从inputstream接收数据并使用RECIEVE_MESSAGE arg在处理程序中发送它
bytes = mmInStream.read(buffer); // Get number of bytes and message in "buffer"
h.obtainMessage(RECIEVE_MESSAGE, bytes, -1, buffer).sendToTarget();
但在你处理程序中，你只需在开关盒中使用1，实际应该是2（） 所以正确的代码应该是
switch(msg.what) {
case RECIEVE_MESSAGE: // value is 2 here now
String writeMessage = new String(writeBuf);
writeMessage = writeMessage.substring(begin, end);
break;
}
测试它，如果其他东西工作正常，你可能会得到一条消息