<!--計(jì)歩需要的權(quán)限-->
 <uses-permission android:name="android.permission.VIBRATE" />
 <uses-permission android:name="android.permission.WRITE_SETTINGS" />
 <uses-feature android:name="android.hardware.sensor.accelerometer" />
 <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
 <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
 <uses-feature
 android:name="android.hardware.sensor.stepcounter"
 android:required="true" />
 <uses-feature
 android:name="android.hardware.sensor.stepdetector"
 android:required="true" />

 /**
 * 判斷該設(shè)備是否支持計(jì)歩
 *
 * @param context
 * @return
 */
 @TargetApi(Build.VERSION_CODES.KITKAT)
 public static boolean isSupportStepCountSensor(Context context) {
 // 獲取傳感器管理器的實(shí)例
 SensorManager sensorManager = (SensorManager) context
 .getSystemService(context.SENSOR_SERVICE);
 Sensor countSensor = sensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER);
 Sensor detectorSensor = sensorManager.getDefaultSensor(Sensor.TYPE_STEP_DETECTOR);
 return countSensor != null || detectorSensor != null;
 }

 private boolean isBind = false;
    private Messenger mGetReplyMessenger = new Messenger(new Handler(this));
    private Messenger messenger;
   /**
     * 開(kāi)啟計(jì)步服務(wù)
     */
    private void setupService() {
        Intent intent = new Intent(this, StepService.class);
        isBind = bindService(intent, conn, Context.BIND_AUTO_CREATE);
        startService(intent);

    }
    /**
     * 從service服務(wù)中拿到步數(shù)
     *
     * @param msg
     * @return
     */
    @Override

    public boolean handleMessage(Message msg) {
        switch (msg.what) {
            case Constant.MSG_FROM_SERVER:
                cc.setCurrentCount(10000, msg.getData().getInt("step"));
                break;
        }
        return false;
    }

    /**
     * 用于查詢應(yīng)用服務(wù)（application Service）的狀態(tài)的一種interface
     * 更詳細(xì)的信息可以參考Service 和 context.bindService()中的描述
     * 和許多來(lái)自系統(tǒng)的回調(diào)方式一樣，ServiceConnection的方法都是進(jìn)程的主線程中調(diào)用的
     */
    ServiceConnection conn = new ServiceConnection() {
        /**
         * 在建立起于Service的連接時(shí)會(huì)調(diào)用該方法，目前Android是通過(guò)IBind機(jī)制實(shí)現(xiàn)與服務(wù)的連接。
         * @param name 實(shí)際所連接到的Service組件名稱
         * @param service 服務(wù)的通信信道的IBind，可以通過(guò)Service訪問(wèn)對(duì)應(yīng)服務(wù)
         */
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            try {
                messenger = new Messenger(service);
                Message msg = Message.obtain(null, Constant.MSG_FROM_CLIENT);
                msg.replyTo = mGetReplyMessenger;
                messenger.send(msg);
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }
      /**
         * 當(dāng)與Service之間的連接丟失的時(shí)候會(huì)調(diào)用該方
         * 這種情況經(jīng)常發(fā)生在Service所在的進(jìn)程崩潰或者被Kill的時(shí)候調(diào)用
         * 此方法不會(huì)移除與Service的連接，當(dāng)服務(wù)重新啟動(dòng)的時(shí)候仍然會(huì)調(diào)用 onServiceConnected()
         * @param name 丟失連接的組件名稱
         */
        @Override
        public void onServiceDisconnected(ComponentName name) {
        }
    };