如何防止Android bluetooth RFCOMM连接在.connect（）之后立即中断？,android,bluetooth,motorola,rfcomm,Android,Bluetooth,Motorola,Rfcomm,这个问题已经解决了！非常感谢布拉德、丹尼斯和瘾君子！你们是英雄！：）
这是工作代码。它连接到Zeemote并从中读取数据
====代码=====
公共类ZeeTest扩展了活动{
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.main）；
试一试{
对于（int i=0；i
我在下面粘贴了两个测试应用程序：一个实际尝试从输入流读取数据，另一个就在那里，等待设备在5秒钟后断开连接。是的，我有第三个版本：）它首先等待ACL_连接，然后打开套接字，但它的行为没有什么新的
一些背景信息：
我可以使用bluez工具（附日志）从笔记本电脑连接到Zeemote。我确信Droid也能够与Zeemote对话，因为市场上的“Game Pro”可以很好地使用它（但它是一个驱动程序/服务，所以可能使用较低级别的API？）
我注意到“adb bugreport”对Zeemote既不报告UUID也不报告RFCOMM通道，而对所有其他设备（包括Moto HS815 headset，另一个“sdp browse”不报告任何内容的哑设备）报告UUID和RFCOMM通道。此外，当设备启动时，Zeemote的优先级为0（其他设备的优先级为100+）
我在这里感到很茫然，我在这方面工作了太长时间，没有任何想法，因此非常感谢您的帮助（即使您不知道答案：）
谢谢，
马克斯
测试申请第一号
此应用程序尝试实际读取设备中的数据
====代码=====
公共类ZeeTest扩展了活动{
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.main）；
试一试{
test（）；
}捕获（IOE异常）{
e、 printStackTrace（）；
}
}
私人蓝牙套袜；
私有输入流；
public void test（）引发IOException{
BluetoothDevice zee=BluetoothAdapter.getDefaultAdapter（）。
getRemoteDevice（“00:1C:4D:02:A6:55”）；
sock=zee.createrfcommsockettoservice记录(
UUID.fromString（“8e1f0cf7-508f-4875-b62c-fbb67fd34812”）；
Log.d（“ZeeTest”，“连接”）；
sock.connect（）；
Log.d（“ZeeTest”，“已连接”）；
in=sock.getInputStream（）；
字节[]缓冲区=新字节[1]；
int字节=0；
int x=0；
Log.d（“ZeeTest”，“侦听…”）；
而（x<2）{
x++；
试一试{
字节=in.read（缓冲区）；
Log.d（“ZeeTest”，“+++++读取”+字节+“字节”）；
}捕获（IOE异常）{
e、 printStackTrace（）；
试试{Thread.sleep（100）；}catch（InterruptedException ie）{}
}
}
Log.d（“ZeeTest”，“+++++完成：test（）”）；
}
@凌驾
公共空间{
试一试{
if（in！=null）{
in.close（）；
}
if（sock！=null）{
sock.close（）；
}
}捕获（IOE异常）{
e、 printStackTrace（）；
}
super.ondestory（）；
}
}
====日志=====
04-19 22:27:01.147:调试/测试（8619）：+++++连接
04-19 22:27:04.085:INFO/usbd（1062）：处理usb事件消息（）：buffer=add@/devices/virtual/bluetooth/hci0/hci0:1
04-19 22:27:04.085:INFO/usbd（1062）：main（）：调用select（…）
04-19 22:27:04.327:ERROR/BluetoothEventLoop.cpp（4029）：事件过滤器：接收信号org.bluez.Device:property从/org/bluez/4121/hci0/dev_00_1C_4D_02_A6_55更改
04-19 22:27:04.491:VERBOSE/BluetoothEventRedirector（7499）：收到android.bleutoth.device.a
public class ZeeTest extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
for (int i = 0; i < 3; i++) {
test();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private boolean connected = false;
private BluetoothSocket sock;
private InputStream in;
public void test() throws Exception {
if (connected) {
return;
}
BluetoothDevice zee = BluetoothAdapter.getDefaultAdapter().
getRemoteDevice("00:1C:4D:02:A6:55");
Method m = zee.getClass().getMethod("createRfcommSocket",
new Class[] { int.class });
sock = (BluetoothSocket)m.invoke(zee, Integer.valueOf(1));
Log.d("ZeeTest", "++++ Connecting");
sock.connect();
Log.d("ZeeTest", "++++ Connected");
in = sock.getInputStream();
byte[] buffer = new byte[50];
int read = 0;
Log.d("ZeeTest", "++++ Listening...");
try {
while (true) {
read = in.read(buffer);
connected = true;
StringBuilder buf = new StringBuilder();
for (int i = 0; i < read; i++) {
int b = buffer[i] & 0xff;
if (b < 0x10) {
buf.append("0");
}
buf.append(Integer.toHexString(b)).append(" ");
}
Log.d("ZeeTest", "++++ Read "+ read +" bytes: "+ buf.toString());
}
} catch (IOException e) {}
Log.d("ZeeTest", "++++ Done: test()");
}
@Override
public void onDestroy() {
try {
if (in != null) {
in.close();
}
if (sock != null) {
sock.close();
}
} catch (IOException e) {
e.printStackTrace();
}
super.onDestroy();
}
}
public class ZeeTest extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
test();
} catch (IOException e) {
e.printStackTrace();
}
}
private BluetoothSocket sock;
private InputStream in;
public void test() throws IOException {
BluetoothDevice zee = BluetoothAdapter.getDefaultAdapter().
getRemoteDevice("00:1C:4D:02:A6:55");
sock = zee.createRfcommSocketToServiceRecord(
UUID.fromString("8e1f0cf7-508f-4875-b62c-fbb67fd34812"));
Log.d("ZeeTest", "++++ Connecting");
sock.connect();
Log.d("ZeeTest", "++++ Connected");
in = sock.getInputStream();
byte[] buffer = new byte[1];
int bytes = 0;
int x = 0;
Log.d("ZeeTest", "++++ Listening...");
while (x < 2) {
x++;
try {
bytes = in.read(buffer);
Log.d("ZeeTest", "++++ Read "+ bytes +" bytes");
} catch (IOException e) {
e.printStackTrace();
try { Thread.sleep(100); } catch (InterruptedException ie) {}
}
}
Log.d("ZeeTest", "++++ Done: test()");
}
@Override
public void onDestroy() {
try {
if (in != null) {
in.close();
}
if (sock != null) {
sock.close();
}
} catch (IOException e) {
e.printStackTrace();
}
super.onDestroy();
}
}
04-19 22:27:01.147: DEBUG/ZeeTest(8619): ++++ Connecting
04-19 22:27:04.085: INFO/usbd(1062): process_usb_uevent_message(): buffer = add@/devices/virtual/bluetooth/hci0/hci0:1
04-19 22:27:04.085: INFO/usbd(1062): main(): call select(...)
04-19 22:27:04.327: ERROR/BluetoothEventLoop.cpp(4029): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/4121/hci0/dev_00_1C_4D_02_A6_55
04-19 22:27:04.491: VERBOSE/BluetoothEventRedirector(7499): Received android.bleutooth.device.action.UUID
04-19 22:27:04.905: DEBUG/ZeeTest(8619): ++++ Connected
04-19 22:27:04.905: DEBUG/ZeeTest(8619): ++++ Listening...
04-19 22:27:05.538: WARN/System.err(8619): java.io.IOException: Software caused connection abort
04-19 22:27:05.600: WARN/System.err(8619): at android.bluetooth.BluetoothSocket.readNative(Native Method)
...
04-19 22:27:05.717: WARN/System.err(8619): java.io.IOException: Software caused connection abort
04-19 22:27:05.717: WARN/System.err(8619): at android.bluetooth.BluetoothSocket.readNative(Native Method)
...
04-19 22:27:05.819: DEBUG/ZeeTest(8619): ++++ Done: test()
04-19 22:27:07.155: VERBOSE/BluetoothEventRedirector(7499): Received android.bleutooth.device.action.UUID
04-19 22:27:09.077: INFO/usbd(1062): process_usb_uevent_message(): buffer = remove@/devices/virtual/bluetooth/hci0/hci0:1
04-19 22:27:09.085: INFO/usbd(1062): main(): call select(...)
04-19 22:27:09.139: ERROR/BluetoothEventLoop.cpp(4029): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/4121/hci0/dev_00_1C_4D_02_A6_55
public class ZeeTest extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
getApplicationContext().registerReceiver(receiver,
new IntentFilter(BluetoothDevice.ACTION_ACL_CONNECTED));
getApplicationContext().registerReceiver(receiver,
new IntentFilter(BluetoothDevice.ACTION_ACL_DISCONNECTED));
try {
BluetoothDevice zee = BluetoothAdapter.getDefaultAdapter().
getRemoteDevice("00:1C:4D:02:A6:55");
sock = zee.createRfcommSocketToServiceRecord(
UUID.fromString("8e1f0cf7-508f-4875-b62c-fbb67fd34812"));
Log.d("ZeeTest", "++++ Connecting");
sock.connect();
Log.d("ZeeTest", "++++ Connected");
} catch (IOException e) {
e.printStackTrace();
}
}
private static final LogBroadcastReceiver receiver = new LogBroadcastReceiver();
public static class LogBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Log.d("ZeeReceiver", intent.toString());
Bundle extras = intent.getExtras();
for (String k : extras.keySet()) {
Log.d("ZeeReceiver", " Extra: "+ extras.get(k).toString());
}
}
}
private BluetoothSocket sock;
@Override
public void onDestroy() {
getApplicationContext().unregisterReceiver(receiver);
if (sock != null) {
try {
sock.close();
} catch (IOException e) {
e.printStackTrace();
}
}
super.onDestroy();
}
}
04-19 22:06:34.944: DEBUG/ZeeTest(7986): ++++ Connecting
04-19 22:06:38.202: INFO/usbd(1062): process_usb_uevent_message(): buffer = add@/devices/virtual/bluetooth/hci0/hci0:1
04-19 22:06:38.202: INFO/usbd(1062): main(): call select(...)
04-19 22:06:38.217: ERROR/BluetoothEventLoop.cpp(4029): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/4121/hci0/dev_00_1C_4D_02_A6_55
04-19 22:06:38.428: VERBOSE/BluetoothEventRedirector(7499): Received android.bleutooth.device.action.UUID
04-19 22:06:38.968: DEBUG/ZeeTest(7986): ++++ Connected
04-19 22:06:39.061: DEBUG/ZeeReceiver(7986): Intent { act=android.bluetooth.device.action.ACL_CONNECTED (has extras) }
04-19 22:06:39.108: DEBUG/ZeeReceiver(7986): Extra: 00:1C:4D:02:A6:55
04-19 22:06:39.538: INFO/ActivityManager(4029): Displayed activity zee.test/.ZeeTest: 5178 ms (total 5178 ms)
04-19 22:06:41.014: VERBOSE/BluetoothEventRedirector(7499): Received android.bleutooth.device.action.UUID
04-19 22:06:43.038: INFO/usbd(1062): process_usb_uevent_message(): buffer = remove@/devices/virtual/bluetooth/hci0/hci0:1
04-19 22:06:43.038: INFO/usbd(1062): main(): call select(...)
04-19 22:06:43.069: ERROR/BluetoothEventLoop.cpp(4029): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/4121/hci0/dev_00_1C_4D_02_A6_55
04-19 22:06:43.124: DEBUG/ZeeReceiver(7986): Intent { act=android.bluetooth.device.action.ACL_DISCONNECTED (has extras) }
04-19 22:06:43.124: DEBUG/ZeeReceiver(7986): Extra: 00:1C:4D:02:A6:55
$ sdptool browse
Inquiring ...
Browsing 00:1C:4D:02:A6:55 ...
$ sdptool records 00:1C:4D:02:A6:55
Service Name: Zeemote
Service RecHandle: 0x10015
Service Class ID List:
UUID 128: 8e1f0cf7-508f-4875-b62c-fbb67fd34812
Protocol Descriptor List:
"L2CAP" (0x0100)
"RFCOMM" (0x0003)
Channel: 1
Language Base Attr List:
code_ISO639: 0x656e
encoding: 0x6a
base_offset: 0x100
$ rfcomm connect /dev/tty10 00:1C:4D:02:A6:55
Connected /dev/rfcomm0 to 00:1C:4D:02:A6:55 on channel 1
Press CTRL-C for hangup
# rfcomm show /dev/tty10
rfcomm0: 00:1F:3A:E4:C8:40 -> 00:1C:4D:02:A6:55 channel 1 connected [reuse-dlc release-on-hup tty-attached]
# cat /dev/tty10
(nothing here)
# hcidump
HCI sniffer - Bluetooth packet analyzer ver 1.42
device: hci0 snap_len: 1028 filter: 0xffffffff
< HCI Command: Create Connection (0x01|0x0005) plen 13
> HCI Event: Command Status (0x0f) plen 4
> HCI Event: Connect Complete (0x03) plen 11
< HCI Command: Read Remote Supported Features (0x01|0x001b) plen 2
> HCI Event: Read Remote Supported Features (0x0b) plen 11
< ACL data: handle 11 flags 0x02 dlen 10
L2CAP(s): Info req: type 2
> HCI Event: Command Status (0x0f) plen 4
> HCI Event: Page Scan Repetition Mode Change (0x20) plen 7
> HCI Event: Max Slots Change (0x1b) plen 3
< HCI Command: Remote Name Request (0x01|0x0019) plen 10
> HCI Event: Command Status (0x0f) plen 4
> ACL data: handle 11 flags 0x02 dlen 16
L2CAP(s): Info rsp: type 2 result 0
Extended feature mask 0x0000
< ACL data: handle 11 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 3 scid 0x0040
> HCI Event: Number of Completed Packets (0x13) plen 5
> ACL data: handle 11 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x04fb scid 0x0040 result 1 status 2
Connection pending - Authorization pending
> HCI Event: Remote Name Req Complete (0x07) plen 255
> ACL data: handle 11 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x04fb scid 0x0040 result 0 status 0
Connection successful
< ACL data: handle 11 flags 0x02 dlen 16
L2CAP(s): Config req: dcid 0x04fb flags 0x00 clen 4
MTU 1013
(events are properly received using bluez)
--Known devices--
00:19:A1:2D:16:EA bonded (0) LG U830
00001105-0000-1000-8000-00805f9b34fb RFCOMM channel = 17
00:1C:4D:02:A6:55 bonded (0) Zeemote JS1
00:0B:2E:6E:6F:00 bonded (0) Motorola HS815
00001108-0000-1000-8000-00805f9b34fb RFCOMM channel = 1
0000111e-0000-1000-8000-00805f9b34fb RFCOMM channel = 2
00:1F:3A:E4:C8:40 bonded (0) BRCM BT4X
00001105-0000-1000-8000-00805f9b34fb RFCOMM channel = 9
00:18:42:EC:E2:99 bonded (0) N95
00001105-0000-1000-8000-00805f9b34fb RFCOMM channel = 9
04-18 21:55:10.382: VERBOSE/BluetoothEventRedirector(1985): Received android.bluetooth.adapter.action.STATE_CHANGED
04-18 21:55:10.421: DEBUG/BT HSHFP(1237): Loaded priority 00:19:A1:2D:16:EA = 100
04-18 21:55:10.428: DEBUG/BT HSHFP(1237): Loaded priority 00:1C:4D:02:A6:55 = 0
04-18 21:55:10.444: DEBUG/BT HSHFP(1237): Loaded priority 00:0B:2E:6E:6F:00 = 101
04-18 21:55:10.749: DEBUG/BT HSHFP(1237): Loaded priority 00:1F:3A:E4:C8:40 = 100
04-18 21:55:10.780: DEBUG/BT HSHFP(1237): Loaded priority 00:18:42:EC:E2:99 = 100
sock = zee.createRfcommSocketToServiceRecord(
UUID.fromString("8e1f0cf7-508f-4875-b62c-fbb67fd34812"));
Method m = zee.getClass().getMethod("createRfcommSocket", new Class[] { int.class });
sock = (BluetoothSocket) m.invoke(device, 1);
for(int i=0;i<3;i++){ if(!testDone) test(); }
package com.xxx; // @todo Change to your package.
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.os.Bundle;
import android.util.Log;
/**
* This is the simplest bluetooth program. It sends one message to one bluetooth
* device. The message and the bluetooth hardware id for the device are hard
* coded. <br>
* <br>
* It does <b>not</b> receive any data. It does not do any thread processing. <br>
* <br>
*
* This application will be useful to communicate with a bluetooth hardware
* device such as a bar code reader, Lego Mindstorm, a PC with a com port
* application, a PC with a terminal program with 'listening' to a com port, a
* second android device with a terminal program such as <a href=
* "http://www.tec-it.com/en/software/data-acquisition/getblue/android-smartphone/Default.aspx"
* >GetBlue</a>. It is not a full android bluetooth application but more a proof
* of concept that the bluetooth works.
*
* <br>
* <br>
*
* This code should cut and paste into the <a
* href="http://developer.android.com/resources/tutorials/hello-world.html>
* 'HelloAndroid' example</a>. It does not use any screen io.
*
* Add to your Android Manifest.xml file: <uses-permission
* android:name="android.permission.BLUETOOTH" /> <uses-permission
* android:name="android.permission.BLUETOOTH_ADMIN" />
*
* For a proper bluetooth example with threading and receiving data see: <a
* href=
* "http://developer.android.com/resources/samples/BluetoothChat/index.html"
* >http://developer.android.com/resources/samples/BluetoothChat/index.html</a>
*
* @see <a
* href="http://developer.android.com/guide/topics/wireless/bluetooth.html">
* http://developer.android.com/guide/topics/wireless/bluetooth.html</a>
*
*/
public class BlueToothTesterActivity extends Activity {
/** The BluetoothAdapter is the gateway to all bluetooth functions **/
protected BluetoothAdapter bluetoothAdapter = null;
/** We will write our message to the socket **/
protected BluetoothSocket socket = null;
/** The Bluetooth is an external device, which will receive our message **/
BluetoothDevice blueToothDevice = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Grab the BlueToothAdapter. The first line of most bluetooth programs.
bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
// if the BluetoothAdapter.getDefaultAdapter(); returns null then the
// device does not have bluetooth hardware. Currently the emulator
// does not support bluetooth so this will this condition will be true.
// i.e. This code only runs on a hardware device an not on the emulator.
if (bluetoothAdapter == null) {
Log.e(this.toString(), "Bluetooth Not Available.");
return;
}
// This will find the remote device given the bluetooth hardware
// address.
// @todo: Change the address to the your device address
blueToothDevice = bluetoothAdapter.getRemoteDevice("00:00:00:00:00:00");
for (Integer port = 1; port <= 3; port++) {
simpleComm(Integer.valueOf(port));
}
}
protected void simpleComm(Integer port) {
// byte [] inputBytes = null;
// The documents tell us to cancel the discovery process.
bluetoothAdapter.cancelDiscovery();
Log.d(this.toString(), "Port = " + port);
try {
// This is a hack to access "createRfcommSocket which is does not
// have public access in the current api.
// Note: BlueToothDevice.createRfcommSocketToServiceRecord (UUID
// uuid) does not work in this type of application. .
Method m = blueToothDevice.getClass().getMethod(
"createRfcommSocket", new Class[] { int.class });
socket = (BluetoothSocket) m.invoke(blueToothDevice, port);
// debug check to ensure socket was set.
assert (socket != null) : "Socket is Null";
// attempt to connect to device
socket.connect();
try {
Log.d(this.toString(),
"************ CONNECTION SUCCEES! *************");
// Grab the outputStream. This stream will send bytes to the
// external/second device. i.e it will sent it out.
// Note: this is a Java.io.OutputStream which is used in several
// types of Java programs such as file io, so you may be
// familiar with it.
OutputStream outputStream = socket.getOutputStream();
// Create the String to send to the second device.
// Most devices require a '\r' or '\n' or both at the end of the
// string.
// @todo set your message
String message = "Data from Android and tester program!\r";
// Convert the message to bytes and blast it through the
// bluetooth
// to the second device. You may want to use:
// public byte[] getBytes (Charset charset) for proper String to
// byte conversion.
outputStream.write(message.getBytes());
} finally {
// close the socket and we are done.
socket.close();
}
// IOExcecption is thrown if connect fails.
} catch (IOException ex) {
Log.e(this.toString(), "IOException " + ex.getMessage());
// NoSuchMethodException IllegalAccessException
// InvocationTargetException
// are reflection exceptions.
} catch (NoSuchMethodException ex) {
Log.e(this.toString(), "NoSuchMethodException " + ex.getMessage());
} catch (IllegalAccessException ex) {
Log.e(this.toString(), "IllegalAccessException " + ex.getMessage());
} catch (InvocationTargetException ex) {
Log.e(this.toString(),
"InvocationTargetException " + ex.getMessage());
}
}
}