現在、2つのペアになっているデバイスを接続し、互いにデータを送信できるアプリを作成しています。私はAndroidの開発には非常に新しいですし、私はいくつかの問題を抱えています、私はデータ伝送を働かせるように見えません。AndroidスタジオでBluetooth経由でデータを読み書きする
私はこのチュートリアルを次されています:
-The -The ConnectedThread
btnSendData.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String message = editTxtMsg.getText().toString();
if (connectedThread != null) {
connectedThread.write(message.getBytes());
}
}
});
の上に文字列を送信することを意図し、 "送信" ボタンを:
http://developer.android.com/guide/topics/connectivity/bluetooth.html
は、ここに私のコードの一部です
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 = new byte[1024]; // 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);
// Send the obtained bytes to the UI activity
mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer).sendToTarget();
/*Bundle data =new Bundle();
//data.p
Message m =mHandler.obtainMessage();
m.setData(data);
mHandler.sendMessage(m);*/
} catch (IOException e) {
break;
}
}
}
/* Call this from the main activity to send data to the remote device */
public void write(byte[] bytes) {
try {
mmOutStream.write(bytes);
mHandler.obtainMessage(MESSAGE_WRITE, -1, -1, buffer).sendToTarget();
} catch (IOException e) { }
}
/* Call this from the main activity to shutdown the connection */
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) { }
}
}
-ハンドラ
private final Handler mHandler = new Handler()
{
@Override
public void handleMessage(Message msg)
{
switch (msg.what)
{
case MESSAGE_READ:
byte[] readBuffer = (byte[]) msg.obj;
String readMessage = new String(readBuffer, 0, msg.arg1);
//arrayAdapterMsg.add(btDevice.getName() + ": " + readMessage);
aryLstMsg.add(btDevice.getName() + ": " + readMessage);
arrayAdapterMsg.notifyDataSetChanged();
break;
case MESSAGE_WRITE:
byte[] writeBuffer = (byte[]) msg.obj;
String writeMessage = new String(writeBuffer);
//arrayAdapterMsg.add("Me: " + "test");
aryLstMsg.add("Me: " + writeMessage);
arrayAdapterMsg.notifyDataSetChanged();
break;
}
}
};
私はなぜそれが機能していないのかわかりません、他の誰もがアイデアを持っていますか?