Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.util.Pair;

public class Main {
    public static Pair<BluetoothManager, BluetoothAdapter> checkBT(final Activity activity) {
        // Use this check to determine whether BLE is supported on the device. Then
        // you can selectively disable BLE-related features.
        if (!btleSupport(activity)) {
            return null;
        }
        final BluetoothManager bluetoothManager = (BluetoothManager) activity
                .getSystemService(Context.BLUETOOTH_SERVICE);
        BluetoothAdapter bluetoothAdapter = bluetoothManager.getAdapter();

        //On some devices this does not work
        try {
            bluetoothAdapter.getBluetoothLeScanner();
        } catch (NoSuchMethodError e) {
            return null;
        }

        // Ensures Bluetooth is available on the device and it is enabled. If not,
        // displays a dialog requesting user permission to enable Bluetooth.
        if (bluetoothAdapter == null || !bluetoothAdapter.isEnabled()) {
            Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            activity.startActivityForResult(enableBtIntent, 1);
            bluetoothAdapter = bluetoothManager.getAdapter();
        }
        return new Pair<BluetoothManager, BluetoothAdapter>(bluetoothManager, bluetoothAdapter);
    }

    public static boolean btleSupport(final Activity activity) {
        return activity.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE);
    }
}