mbientlab / BleToolbox

MetaWear Java SDK - Android - Utility library for Bluetooth LE operations

BleToolbox

This project is a utility library that implements general Bluetooth LE operations on the Android platform. The library will only be updated sporadically to address bugs or add features as they are needed.

Adding Gradle Dependency

To add the library to your project, first, update the repositories closure to include the MbientLab Ivy Repo in the project's build.gradle file.

repositories {
    ivy {
        url "http://ivyrep.mbientlab.com"
        layout "gradle"
    }
}

Then, add the compile element to the dependencies closure in the module's build.gradle file.

dependencies {
    compile 'com.mbientlab.bletoolbox:scanner:0.2.3'
}

Bluetooth LE Scan

The classes in the scanner package scans for Bluetooth LE devices and displays the results in a ListView. The scanner filters results to only return devices that advertise a valid service UUID and automatically stops scanning after a set duration.

Embedded Fragment

You can embed the fragment in a layout file. The activity containing the fragment will need to implement the BleScannerFragment.ScannerCommunicationBus interface, which is used to configure the scan.

<?xml version="1.0" encoding="utf-8"?>

<!-- Embedding the scanner fragment in a layout -->
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/fragment"
    android:name="com.mbientlab.bletoolbox.scanner.BleScannerFragment"
    tools:layout="@layout/blescan_device_list" android:layout_width="match_parent"
    android:layout_height="match_parent" />

import android.support.v7.app.AppCompatActivity;

import com.mbientlab.bletoolbox.scanner.BleScannerFragment;
import com.mbientlab.bletoolbox.scanner.BleScannerFragment.*;

public class ExampleEmbeddedScannerActivity extends AppCompatActivityi 
        implements ScannerCommunicationBus {
    @Override
    public void onDeviceSelected(BluetoothDevice device) {
        Toast.makeText(this, String.format(Locale.US, "Selected device: %s", 
                device.getAddress()), Toast.LENGTH_LONG).show();
    }
    
    @Override
    public UUID[] getFilterServiceUuids() {
        ///< Only return MetaWear boards in the scan
        return new UUID[] {UUID.fromString("326a9000-85cb-9195-d9dd-464cfbbae75a")};
    }

    @Override
    public long getScanDuration() {
        ///< Scan for 10000ms (10 seconds)
        return 10000;
    }
}