android蓝牙文件传输失败

Question

here i am trying to send a file over bluetooth but its not sending any data. here the main problem is that its not sending or receiving any data over the two devices but they are connected to each other.

Sending code:

File myFile = new File(message.toURI());
Double nosofpackets = Math.ceil(((int) myFile.length() )/4096);
System.out.println(nosofpackets);
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(myFile));
byte[] send = new byte[4096];
for(double i = 0; i < nosofpackets; i++)
{
    send = null ;
    a=bis.read(send, 0, send.length);
    Log.d("BluetoothChat", "data packet " + i);
    if(a == -1)
    {
        break;
    }
    mChatService.write(send);
}

Receiving code :

while((bytes = mmInStream.read(buffer)) > 0)
{
    Log.d(TAG, "data is there for writing");
    bos.write(buffer);
}

Answer 1

您可能想检出此库，以便使用蓝牙在Android设备之间发送文件和其他数据（免责声明：我是作者）