android 藍芽低功耗（BLE）非常棒的工具類，擷取小米手環的步數

android 藍芽低功耗（BLE）非常棒的工具類，擷取小米手環的步數

現在物聯網搞的轟轟烈烈的，小米的手環等一系列產品，下面我們就來研究一下小米手環的記步功能

工具類

package com.zsl.bluetoothdemo.ble;import android.bluetooth.BluetoothAdapter;import android.bluetooth.BluetoothDevice;import android.bluetooth.BluetoothGatt;import android.bluetooth.BluetoothGattCallback;import android.bluetooth.BluetoothManager;import android.content.Context;import android.content.Intent;import android.os.Handler;import java.util.ArrayList;import java.util.List;/** * 藍芽的工具類 * Created by zsl on 15/5/25. */public class UniversalBluetoothLE {    //UniversalBluetoothLE    public static UniversalBluetoothLE universalBluetoothLE;    private Context context;    //BluetoothAdapter    private BluetoothAdapter mBluetoothAdapter;    //BluetoothManager    private BluetoothManager bluetoothManager;    //開啟藍芽的請求碼    public static final int REQUEST_ENABLE_BLUETOOTH = 10010;    //是否正在掃描藍牙裝置    private boolean mScanning;    //設定掃描時間長度    private static final long SCAN_PERIOD = 10000;    //藍芽掃描的返回    BluetoothAdapter.LeScanCallback leScanCallback;    //藍芽設別的list    List bluetoothDeviceList = new ArrayList();    Handler mHandler = new Handler();    LeScanListenter leScanListenter;    private UniversalBluetoothLE(Context context) {        this.context = context;        //得到BluetoothManager        this.bluetoothManager = (BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);        //得到BluetoothAdapter        this.mBluetoothAdapter = bluetoothManager.getAdapter();        //藍芽搜尋的回調        leScanCallback = new BluetoothAdapter.LeScanCallback() {            @Override            public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {                bluetoothDeviceList.add(device);                //返回所有列表                leScanListenter.leScanCallBack(bluetoothDeviceList);            }        };    }    /**     * 獲得到UniversalBluetoothLE對象     *     * @param context     * @return     */    public static UniversalBluetoothLE inistance(Context context) {        if (universalBluetoothLE == null) {            universalBluetoothLE = new UniversalBluetoothLE(context);        }        return universalBluetoothLE;    }    /**     * 檢查藍芽是否開啟並且啟動開啟藍芽的方法     */    public void openBbletooth() {        //判斷藍芽是否開啟        if (mBluetoothAdapter == null || !mBluetoothAdapter.isEnabled()) {            //開啟藍芽            Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);            context.startActivity(enableIntent);        }    }    /**     * 開始（true）或結束（false）藍芽掃描     *     * @param enable     */    private void scanLeDevice(final boolean enable) {        if (enable && mScanning == false) {            mHandler.postDelayed(new Runnable() {                @Override                public void run() {                    mScanning = false;                    mBluetoothAdapter.stopLeScan(leScanCallback);                }            }, SCAN_PERIOD);            mScanning = true;            mBluetoothAdapter.startLeScan(leScanCallback);        } else {            mScanning = false;            mBluetoothAdapter.stopLeScan(leScanCallback);        }    }    /**     * 開始搜尋藍牙裝置     *     * @param leScanListenter 搜尋藍牙裝置的回調（返回裝置列表）     */    public void startScanLeDevice(final LeScanListenter leScanListenter) {        bluetoothDeviceList.clear();        this.leScanListenter=leScanListenter;        scanLeDevice(true);    }    /**     * 停止搜尋裝置     */    public void stopScanLeDevice() {        if (leScanCallback == null)            return;        scanLeDevice(false);    }    /**     * 搜尋藍芽的回調     */    public interface LeScanListenter {        void leScanCallBack(List bluetoothDeviceList);    }    /**     * 得到BluetoothGatt     * @param device 裝置     * @param autoConnect 是否自動連結     * @param bluetoothGattCallback 回調     */    public BluetoothGatt getConnectGatt(BluetoothDevice device,boolean autoConnect,BluetoothGattCallback bluetoothGattCallback){        return device.connectGatt(context, autoConnect, bluetoothGattCallback);    }}

初始化

//在onCreate中//初始化UniversalBluetoothLEuniversalBluetoothLE = UniversalBluetoothLE.inistance(MainActivity.this);

檢測是否開啟藍芽並且請求系統開啟藍芽

//檢測是否開啟藍芽並且請求系統開啟藍芽universalBluetoothLE.openBbletooth();

連結裝置

mBluetoothGatt=universalBluetoothLE.getConnectGatt(device,true,mGattCallback);mBluetoothGatt.connect();

最後再實現一個GattCallback回調，搞定

看看小米的記步功能吧，完美擷取哦，有小米手環的可以測試哦，第三個是我的小米手環。