使用android蓝牙发送文件？

Question

Is there any way I can send files using Android's internal Bluetooth to other devices? Please provide an example.

Answer 1

This is a small function that you can use

/**
     * Method to share data via bluetooth
     * */
    public void bluetoothFunctionality() {
        String path = Environment.getExternalStorageDirectory() + "/"
                + Config.FILENAME;

        File file = new File(path);

        Intent intent = new Intent();
        intent.setAction(Intent.ACTION_SEND);
        intent.setType("text/plain");
        intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));
        startActivity(intent);
    }

This method will send file to another device using default device bluetooth functionality. Before you do this you have to first paired the device this is limitation. to send different types of file you have to just change MIME type in set type method

In your manifest file you have to add two permissions like

<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <uses-permission android:name="android.permission.BLUETOOTH" />

Answer 2

It's weird that Android has no explicit OBEX api. Anyway, take a look at this project :

• Android OBEX - for file sharing using OBEX

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Or alternatively you can use this solution

BluetoothDevice device;
String filePath = Environment.getExternalStorageDirectory().toString() + "/file.jpg";

ContentValues values = new ContentValues();
values.put(BluetoothShare.URI, Uri.fromFile(new File(filePath)).toString());
values.put(BluetoothShare.DESTINATION, device.getAddress());
values.put(BluetoothShare.DIRECTION, BluetoothShare.DIRECTION_OUTBOUND);
Long ts = System.currentTimeMillis();
values.put(BluetoothShare.TIMESTAMP, ts);
Uri contentUri = getContentResolver().insert(BluetoothShare.CONTENT_URI, values);

_{(It needs this class )}