超精准的Android手机计步器开发

<!--计需要的权限--> <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" />

 /** * 判断该设备是否支持计 * * @param context * @return */ @TargetApi(Build.VERSION_CODES.KITKAT) public static boolean isSupportStepCountSensor(Context context) { // 获取传感器管理器的实例 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;   /**     * 开启计步服务     */    private void setupService() {        Intent intent = new Intent(this, StepService.class);        isBind = bindService(intent, conn, Context.BIND_AUTO_CREATE);        startService(intent);    }    /**     * 从service服务中拿到步数     *     * @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;    }    /**     * 用于查询应用服务（application Service）的状态的一种interface     * 更详细的信息可以参考Service 和 context.bindService()中的描述     * 和许多来自系统的回调方式一样，ServiceConnection的方法都是进程的主线程中调用的     */    ServiceConnection conn = new ServiceConnection() {        /**         * 在建立起于Service的连接时会调用该方法，目前Android是通过IBind机制实现与服务的连接。         * @param name 实际所连接到的Service组件名称         * @param service 服务的通信信道的IBind，可以通过Service访问对应服务         */        @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();            }        }      /**         * 当与Service之间的连接丢失的时候会调用该方         * 这种情况经常发生在Service所在的进程崩溃或者被Kill的时候调用         * 此方法不会移除与Service的连接，当服务重新启动的时候仍然会调用 onServiceConnected()         * @param name 丢失连接的组件名称         */        @Override        public void onServiceDisconnected(ComponentName name) {        }    };