Android 蓝牙连接另一个蓝牙设备 [英] Android Bluetooth to connect another bluetooth device

问题描述

我正在做基于蓝牙的应用程序，我想连接其他设备，如诺基亚设备和打印机.

Im doing bluetooth based application, I want to connect other devices like nokia devices, and printer.

我参考了android蓝牙文档http://developer.android.com/guide/topics/connectivity/bluetooth.html.它演示了所有基本的蓝牙 API 功能，我做了所有这些事情

I refer the android bluetooth documentation http://developer.android.com/guide/topics/connectivity/bluetooth.html. It demonstrates all the fundamental Bluetooth API capabilites, And I did these all the things

Scanning for other Bluetooth devices
Querying the local Bluetooth adapter for paired Bluetooth devices
Establishing RFCOMM channels/sockets
Connecting to a remote device
Transfering data over Bluetooth

我从BluetoothChat获得了参考，android的示例.

i get reference from BluetoothChat, samples of android.

BluetoothChat This application send data to another android device but for that this application must be installed in both the devices.

像这样如何通过代码通过蓝牙将文件从Android设备发送到其他设备

我想要的是

1. 我想将文件从我的应用程序从一台设备发送到另一台设备，即使另一台未运行我们的应用程序的设备也可以使用.即接收器设备也可以使用默认蓝牙接收文件.

这在安卓中可行吗?

推荐答案

您可以轻松地在两个 BT 设备之间建立连接.你只需要打电话

You can do connection between two BT devices easily. You just need to call

createRfcommSocketToServiceRecord(UUID)

使用能够理解接收器设备的 UUID.对于文件传输操作，UUID 必须等于(例如)00001106-0000-1000-8000-00805F9B34FB(文件传输服务)

with UUID that understand receiver device. For file transfer action UUID must be equal (for example) to 00001106-0000-1000-8000-00805F9B34FB (File transfer service)

所以你的连接代码可能看起来像下面的代码

So you connection code might looks like code below

BluetoothDevice device = mBluetoothAdapter.getRemoteDevice("00:0A:94:16:77:A0");BluetoothSocket clientSocket;

BluetoothDevice device = mBluetoothAdapter.getRemoteDevice("00:0A:94:16:77:A0"); BluetoothSocket clientSocket;

try {
    log(TAG, "Remote device " + device);
    ParcelUuid[] uuids = device.getUuids();
    boolean isFileTransferSupported = false;
    UUID ftpUID = UUID.fromString("00001106-0000-1000-8000-00805F9B34FB");
    // Check if remote device supports file transfer
    for (ParcelUuid parcelUuid: uuids) {
        if (parcelUuid.getUuid().equals(ftpUID)) {
            isFileTransferSupported = true;
            break;
        }
    }
    if (!isFileTransferSupported) {
        log(TAG, "Remote bluetooth device does not supports file transfer ");
        return;
    }
    clientSocket = device.createRfcommSocketToServiceRecord(ftpUID);
    clientSocket.connect();
} catch (IOException e) {
    return;
}

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