Android传感器

简单的学习了一下传感器的使用，一个简单的重力传感器，在这里只是对重力传感器进行了一个简单的了解！

下面将代码放到下面，供需要学习的的参考一下，而且这里没有实现什么具体的功能！

  

package com.SensorTest;

import java.util.List;

import android.app.Activity;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.widget.Toast;

public class SensorTest extends Activity implements SensorEventListener {

    boolean isRegSensor = false;

    private SensorManager sensorManager;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

    }

    @Override
    protected void onResume() {
        // TODO Auto-generated method stub
        super.onResume();

        List<Sensor> sensors = sensorManager
                .getSensorList(Sensor.TYPE_ORIENTATION); // 方向传感器

        if (sensors.size() > 0) {
            Sensor sensor = sensors.get(0);
            isRegSensor = sensorManager.registerListener(this, sensor,
                    SensorManager.SENSOR_DELAY_FASTEST);//
        }
    }

    public void onAccuracyChanged(Sensor sensor, int accuracy) {
        // TODO Auto-generated method stub

        // 处理精度改变

    }

    @Override
    protected void onDestroy() {
        // TODO Auto-generated method stub

        if (isRegSensor) {
            sensorManager.unregisterListener(this);
            isRegSensor = false;
        }

        super.onDestroy();
    }

    public void onSensorChanged(SensorEvent event) {
        // TODO Auto-generated method stub
        // 处理方向改变等

        Toast.makeText(this, "X值为：" + event.values[SensorManager.AXIS_MINUS_X],
                Toast.LENGTH_LONG).show();

    }

}

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