我使用修改Google Bluetooth Chat繼續申請2個Android設備(與Android 5和Android 6)之間的客戶機 - 服務器藍牙RFCOMM通信。的BluetoothSocket OutputStream.write()問題
還有就是我的客戶端應用程序的一些代碼:
private class ConnectedThread extends Thread {
private final BluetoothSocket mmSocket;
private final BufferedInputStream mmInStream;
private final BufferedOutputStream mmOutStream;
private ByteBuffer outputBuffer = null;
private int currentOperation = 0;
private byte currentMessageType = 0;
ConnectedThread(BluetoothSocket socket) {
Log.d(LOG_TAG, "create ConnectedThread: Insecure");
mmSocket = socket;
BufferedInputStream tmpIn = null;
BufferedOutputStream tmpOut = null;
try {
tmpIn = new BufferedInputStream(socket.getInputStream());
tmpOut = new BufferedOutputStream(socket.getOutputStream());
} catch (IOException e) {
Log.e(LOG_TAG, "temp sockets not created", e);
}
mmInStream = tmpIn;
mmOutStream = tmpOut;
setState(STATE_CONNECTED);
}
public void run() {
Log.i(LOG_TAG, "BEGIN mConnectedThread");
byte[] buffer;
ByteBuffer intBuf;
int tempInt;
while (mState == STATE_CONNECTED) {
try {
if(mmInStream.available()>8) {
Log.i(LOG_TAG, mmInStream.available() + " f");
buffer = new byte[9];
mmInStream.read(buffer, 0, 9);
intBuf = ByteBuffer.wrap(buffer);
Log.i(LOG_TAG, "NEW MESSAGE: "+intBuf.getInt()+" "+intBuf.get()+" "+intBuf.getInt());
intBuf.rewind();
tempInt = intBuf.getInt();
Log.i(LOG_TAG, tempInt + " GET OP ID " + intBuf.capacity());
currentMessageType = intBuf.get();
Log.i(LOG_TAG, currentMessageType + " GET OP TYPE");
// ... some more code
}
}
catch (IOException err) {
Log.e(LOG_TAG, "disconnected", err);
connectionLost();
break;
}
}
}
void write(byte[] data) {
try {
Log.i(LOG_TAG, "WRITE NEW MESSAGE: "+data.length);
mmOutStream.write(data);
SystemClock.sleep(200);
} catch (IOException e) {
Log.e(LOG_TAG, "Exception during write", e);
}
}
void cancel() {
try {
mmSocket.close();
} catch (IOException e) {
Log.e(LOG_TAG, "close() of connect socket failed", e);
}
}
這部分管理的BluetoothSocket讀/寫操作。
那麼問題是什麼?當我發送數據大小爲< 10000字節(字節數組)它一切正常。但後來我嘗試發送一些大尺寸的數據(> 10000字節),並收到此消息(與logcat的):
12-22 12:53:49.849 28177-28177/com.lukanin.testappjava2 I/(BLUETOOTH): DATA LENGTH: 35722 OPT ID: 1 TYPE: 11
12-22 12:53:49.849 28177-28177/com.lukanin.testappjava2 I/(BLUETOOTH): SEND DATA: 1 11 35722
12-22 12:53:49.849 28177-28177/com.lukanin.testappjava2 I/(BLUETOOTH): WRITE NEW MESSAGE: 35731
[ 12-22 12:53:49.849 21464:21536 D/ ]
PORT_WriteDataCO: tx queue is full,tx.queue_size:10890,tx.queue.count:11,available:14941
[ 12-22 12:53:49.959 21464:21536 D/ ]
PORT_WriteDataCO: tx queue is full,tx.queue_size:10890,tx.queue.count:11,available:3061
我覺得有某種OutputStream的溢出,但我不明白如何解決它。我應該怎麼做才能防止這種情況發生?是否有任何方法來檢查OutputStream寫入可用性?
P.S.這種情況是相關的Android 5(在Android 6上似乎都是正常的)。
我不理解的問題到底是什麼,但看是否添加mmOutStream。寫入數據後flush()有幫助。 – pringi
通過你寫的logcat示例,我無法察覺到這個問題。你能解釋得更好嗎? – pringi
沒有。我試過這種解決方案。在這種情況下,我只接收** PORT_WriteDataCO中的一個:tx隊列已滿... **錯誤。 – trinarr