通过蓝牙通过OBEX对象PushProfile接收文件 [英] Receive file by Bluetooth via OBEX Object PushProfile

问题描述

我有装置，该装置使用OBEX对象推送模式（OPP），通过蓝牙发送数据。

I have device which sends data via Bluetooth using OBEX Object Push Profile (OPP).

利用亚行logcat我看到我的Andr​​oid设备接收的连接（而中止这方面？）

Using adb logcat i see that my android device receives a connection (but abort this connection?)

08-22 11:14:37.939: I/BtOppRfcommListener(22586): Accepted connectoin from 00:07:CF:5F:52:A0
08-22 11:14:37.939: I/BtOpp Service(22586): Start Obex Server
08-22 11:14:38.109: D/Obex ServerSession(22586): java.io.IOException: Software caused connection abort
08-22 11:14:38.109: D/PowerManagerService(180): @PowerManagement: 'BtOppObexServer' releaseWakeLock when screen locked
08-22 11:14:39.219: D/BluetoothEventLoop(180): Device property changed: 00:07:CF:5F:52:A0 property: Connected value: false

当我安装蓝牙文件传输（免费应用程序从市场），那么我就能收到文件。 但我不希望安装其他应用程序。

When I install Bluetooth File Transfer (Free application from market) then i'm able to receive files. But I wouldn't like to install other application.

推荐答案

我相信我有（至少部分）解决方案，它应该然后允许文件通过OPP和定制code被截获增加。第一步是去设置>应用程序>运行>蓝牙分享和杀 BluetoothOppService

I believe I have (at least a partial) solution which should then allow files to be intercepted via OPP and custom code added. The first step is to go to settings > apps > running > Bluetooth Share and kill the BluetoothOppService

然后我用反射来访问的方法在 BluetoothAdapter （以下code），它允许监听特定端口上。之后，我们可以拦截呼入OPP连通，且与输入和输出流相互作用。 <一href="http://stackoverflow.com/questions/7662682/implementing-obex-push-server-on-android-2-3">This SO线程将有助于与OPP通信部分，但作为第一步我读出的数据流，并与OPPOK消息reponded即 os.writeByte（ObexSession.OBEX_SUCCESS | ObexSession.OBEX_FINAL_BIT）;

Then I used reflection to access a method on BluetoothAdapter (code below) which allows listening on a specific port. After which we can intercept the incoming OPP communication and interact with the input and output streams. This SO thread will help with the OPP communication part, but as an initial step I read the data stream and reponded with an OPP 'OK' message ie os.writeByte(ObexSession.OBEX_SUCCESS | ObexSession.OBEX_FINAL_BIT);

// simplified exception handling
public class BluetoothAdapterProxy
{
    public static final int CHANNEL_OPP = 12;

    final BluetoothAdapter target;
    static final Class<?> targetClass = BluetoothAdapter.class;
    Method listenOn;

    public BluetoothAdapterProxy(BluetoothAdapter target)
    {
        this.target = target;
        Class<?>[] args = new Class[] { int.class };
        try
        {
            this.listenOn = targetClass.getDeclaredMethod(
                "listenUsingRfcommOn", args);
        }
        catch (NoSuchMethodException e)
        {
            e.printStackTrace();
        }
    }

    public BluetoothServerSocket listenUsingRfcommOn(int channel)
    {
        try
        {
            return (BluetoothServerSocket) (listenOn.invoke(target, 
                new Object[] { channel }));
        }
        catch (Exception e)
        {
            // complain loud, complain long
            throw new RuntimeException(ex);
        }
    }
}

使用方法：初始化使用

Usage: initialise using

serverSocket = new BluetoothAdapterProxy(BluetoothAdapter.getDefaultAdapter())
    .listenUsingRfcommOn(BluetoothAdapterProxy.CHANNEL_OPP);

在这，请使用以下从单独的发（以prevent阻塞）和远程设备可以通过插座= ServerSocket的连接。接受（）;

After which, use the following from a separate Thread (to prevent blocking) and remote devices can connect via socket = serverSocket.accept();

这篇关于通过蓝牙通过OBEX对象PushProfile接收文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！